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0807.0811	c	in the introduction we reviewed the arguments for the classification of da495 as a pwn . in brief , the emissivity is centrally concentrated and drops smoothly to zero at the outer edge without any sign of a steep shell , indicating a central energy source . this conclusion is corroborated by x - ray observations @xcit...	removal of flux density contributions from a superimposed region and from compact extragalactic sources reveals a break in the spectrum of da495 at 1.3ghz , with a spectral index below the break and above it ( ) . the spectral break is more than three times lower in frequency than the lowest break detected in any other...	we present a radio continuum study of the pulsar wind nebula ( pwn ) da495 ( g65.7 + 1.2 ) , including images of total intensity and linear polarization from 408 to 10550mhz based on the canadian galactic plane survey and observations with the effelsberg 100-m radio telescope . removal of flux density contributions fro...
0807.0811	c	we have imaged the radio emission from the pulsar wind nebula da495 in total intensity and polarized emission across a range of frequencies from 408 to 10550 mhz . after correcting for the flux contribution of extraneous superimposed sources we have demonstrated that there is a break in the spectrum at about 1.3ghz wh...	we present a radio continuum study of the pulsar wind nebula ( pwn ) da495 ( g65.7 + 1.2 ) , including images of total intensity and linear polarization from 408 to 10550mhz based on the canadian galactic plane survey and observations with the effelsberg 100-m radio telescope . we find a magnetic field of.3 mg inside ...	we present a radio continuum study of the pulsar wind nebula ( pwn ) da495 ( g65.7 + 1.2 ) , including images of total intensity and linear polarization from 408 to 10550mhz based on the canadian galactic plane survey and observations with the effelsberg 100-m radio telescope . removal of flux density contributions fro...
0808.3226	i	the late stages of stellar evolution from the asymptotic giant branch ( agb ) to planetary nebulae ( pn ) are now recognized as an active period of chemical synthesis of molecules . the detection and analysis of millimeter wave molecular emission lines are fundamental to the understanding of the physical conditions and...	we present a spectral line survey of the c - rich envelope in the 2 mm and 1.3 mm bands carried out with the arizona radio observatory ( aro ) 12 m telescope and the heinrich hertz submillimeter telescope ( smt ) . nevertheless , there is evidence suggesting enhanced emission from cn and hcn and depleted emission from ...	we present a spectral line survey of the c - rich envelope in the 2 mm and 1.3 mm bands carried out with the arizona radio observatory ( aro ) 12 m telescope and the heinrich hertz submillimeter telescope ( smt ) . the observations cover the frequency ranges of 131160ghz , 219244ghz , and 252268ghz with typical sensiti...
0808.3226	c	similar to , the molecular envelope of cit 6 is also characterized by a lack of oxygen - bearing compounds and abundance of carbon - bearing compounds . in , three o - bearing molecules are observed , co , sio and hco@xmath115 @xcite whereas in , only two o - bearing molecules ( co and sio ) are detected . we find that...	two new molecules ( ch and chcn ) and seven new isotopologues ( co ,sic ,sio ,sio ,cs , cs , and cs ) are detected in this object for the first time . based on their far - ir spectra , we find that probably has a lower dust - to - molecular gas ratio than . to investigate the chemical evolution of evolved stars , we co...	we present a spectral line survey of the c - rich envelope in the 2 mm and 1.3 mm bands carried out with the arizona radio observatory ( aro ) 12 m telescope and the heinrich hertz submillimeter telescope ( smt ) . the observations cover the frequency ranges of 131160ghz , 219244ghz , and 252268ghz with typical sensiti...
0808.3226	c	the presence of rich molecular species around evolved stars provides an opportunity to study the evolution of chemistry in circumstellar envelopes , which have been widely suggested as one of the main sources of organic compounds in space . as part of our project of investigating circumstellar chemistry , this paper re...	the observations cover the frequency ranges of 131160ghz , 219244ghz , and 252268ghz with typical sensitivity limit ofmk . the column densities , excitation temperatures , and fractional abundances of the detected molecules are determined using rotation diagram analysis . comparison of the spectra of to that of suggest...	we present a spectral line survey of the c - rich envelope in the 2 mm and 1.3 mm bands carried out with the arizona radio observatory ( aro ) 12 m telescope and the heinrich hertz submillimeter telescope ( smt ) . the observations cover the frequency ranges of 131160ghz , 219244ghz , and 252268ghz with typical sensiti...
1503.09051	i	we have performed an extensive analysis of the quantum correlations , and the mean value and fluctuations of the energy current across a three - oscillator linear chain at the stationary state , both under ohmic and super - ohmic dissipation . we have considered initially squeezed reservoir thermal states , and applied...	we present a study that addresses both the stationary properties of the energy current and quantum correlations in a three - mode chain subjected to ohmic and super - ohmic dissipations . interestingly , we show that quantum discord can be enhanced by both considering initially squeezed thermal bath states and imposing...	we present a study that addresses both the stationary properties of the energy current and quantum correlations in a three - mode chain subjected to ohmic and super - ohmic dissipations . an extensive numerical analysis shows that the mean value and the fluctuations of the energy current remain insensitive to the emerg...
nlin0601061	i	dynamical systems are used to study phenomena from diverse disciplines of science such as laser physics , population ecology , socio - economic studies and many more . the corresponding mathematical models have often the form of balance equations , in which the time evolution of the state variables is determined by gai...	we present a universal approach to the investigation of the dynamics in generalized models . in these models the processes that are taken into account are not restricted to specific functional forms . we illustrate the investigation of generalized models by considering examples from three different disciplines of scien...	we present a universal approach to the investigation of the dynamics in generalized models . in these models the processes that are taken into account are not restricted to specific functional forms . therefore a single generalized models can describe a class of systems which share a similar structure . despite this ge...
1409.2660	i	the dispersion interaction is a correlation effect . the interaction is a result of the correlated motion of the charged carriers in different parts of the system . the dispersion energy between two objects is the inter - object correlation energy . in the field of condensed matter one often uses the coulomb gauge . in...	we present a variety of methods to derive the casimir interaction in planar systems containing two - dimensional layers . examples where this can be of use is graphene , graphene - like layers and two - dimensional electron gases . the results can easily be extended to systems with a larger number of layers .	we present a variety of methods to derive the casimir interaction in planar systems containing two - dimensional layers . examples where this can be of use is graphene , graphene - like layers and two - dimensional electron gases . we present results for two free standing layers and for one layer above a substrate . th...
astro-ph0503594	c	figures [ figmna2_zw ] and [ figmna2_cg ] plot the normalised ages as a function of the metallicity , and of the distance from the galactic centre for the two adopted metallicity scales . different symbols represent the different metallicity ranges listed in the figure caption . open symbols represent the hst snapshot ...	}<-1.7 $ ] are found to be old , and coeval , with the possible exception of two objects , which are marginally younger . the age dispersion for the metal poor clusters is gyr ( rms ) , consistent with a null age dispersion . are coeval with the oldest clusters .	we present accurate relative ages for a sample of galactic globular clusters . the ages have been obtained by measuring the difference between the horizontal branch and the turnoff in two , internally photometrically homogeneous databases . the mutual consistency of the two data sets has been assessed by comparing the ...
astro-ph0503594	c	we presented a catalogue of homogeneous , relative ages obtained from the so called vertical parameter for a sample of galactic gcs . the analysis of the relative age distribution gives some hints on the origin of the gc system of our galaxy . in particular , we have shown that the low metallicity clusters ( @xmath2}\l...	we present accurate relative ages for a sample of galactic globular clusters . intermediate metallicity clusters (}<-0.8 $ ] ) are on average gyr younger than the metal poor ones , with an age dispersion of gyr ( rms ) , and a total age range of gyr . about of the intermediate metallicity clusters all the clusters with...	we present accurate relative ages for a sample of galactic globular clusters . the ages have been obtained by measuring the difference between the horizontal branch and the turnoff in two , internally photometrically homogeneous databases . the mutual consistency of the two data sets has been assessed by comparing the ...
1502.07040	r	before investigating the spatially - resolved properties of these galaxies star - formation histories , we take a first look at any spatial variations by comparing the central values of the diagnostic parameters to their integrated values across the field of view . to this end , we generated a global spectrum for each ...	we present an analysis of the data produced by the manga prototype run ( p - manga ) , aiming to test how the radial gradients in recent star formation histories , as indicated by the 4000 - break ( d(4000 ) ) , h absorption ( ew(h ) ) and h emission ( ew(h ) ) indices , can be useful for understanding disk growth an...	we present an analysis of the data produced by the manga prototype run ( p - manga ) , aiming to test how the radial gradients in recent star formation histories , as indicated by the 4000 - break ( d(4000 ) ) , h absorption ( ew(h ) ) and h emission ( ew(h ) ) indices , can be useful for understanding disk growth an...
1502.07040	i	using datacubes for 12 galaxies produced during the manga prototype ( p - manga ) observations , we have obtained maps and radial profiles of the d@xmath0(4000 ) , ew(h@xmath1@xmath2 ) and ew(h@xmath3 ) spectral diagnostics . these parameters were derived for each spaxel by decomposing the spectrum into an emission -...	we classify 12 galaxies observed on two p - manga plates as either centrally quiescent ( cq ) or centrally star - forming ( csf ) , according to whether d(4000 ) measured in the central spaxel of each datacube exceeds 1.6 . for each spaxel we generate both 2d maps and radial profiles of d(4000 ) , ew(h ) and ew(h ) ....	we present an analysis of the data produced by the manga prototype run ( p - manga ) , aiming to test how the radial gradients in recent star formation histories , as indicated by the 4000 - break ( d(4000 ) ) , h absorption ( ew(h ) ) and h emission ( ew(h ) ) indices , can be useful for understanding disk growth an...
cond-mat9805028	i	one of the fundamental achievements of the renormalization - group ( rg ) theory of critical phenomena is the identification of universality classes in terms of the dimensionality @xmath19 of the system and the number @xmath10 of components of the order parameter @xcite . specifically , rg theory predicts that the crit...	we present an analytic five - loop calculation for the additive renormalization constant and the associated renormalization - group function of the specific heat of the o symmetric theory within the minimal subtraction scheme . we also determine the amplitude function of the specific heat in three dimensions for above ...	we present an analytic five - loop calculation for the additive renormalization constant and the associated renormalization - group function of the specific heat of the o symmetric theory within the minimal subtraction scheme . we show that this calculation does not require new five - loop integrations but can be perfo...
0812.4017	i	the lower levels of the atmosphere are usually strongly influenced by the earth s surface . known as the atmospheric boundary layer , this is the part of the atmosphere where the surface influences the temperature , moisture , and velocity of the air above through the turbulent transfer of mass . the stability of the a...	we present an extended version of an invited talk given on the international conference turbulent mixing and beyond " . phenomenological attempts to overcome this problem suffer from various theoretical inconsistencies . here we present an approach taking into full account all the second - order statistics , which all...	we present an extended version of an invited talk given on the international conference turbulent mixing and beyond " . the dynamical and statistical description of stably stratified turbulent boundary layers with the important example of the stable atmospheric boundary layer in mind is addressed . traditional approac...
0812.4017	r	this subsection is devoted to an analytical and numerical analysis of the minimal - model ( [ mm ] ) . an example of numerical solution of eqs . ( [ mm ] ) ( with some reasonable choice of the phenomenological parameters ) is shown in fig . [ f : s ] . nevertheless , it would be much more instructive to have approxima...	the physics may change qualitatively , requiring careful consideration of the potential kelvin - helmoholtz waves and their interaction with the vortical turbulence . * nomenclature * + + [ cols="<,^,<,^,<,^ , < " , ] + +	we present an extended version of an invited talk given on the international conference turbulent mixing and beyond " . the dynamical and statistical description of stably stratified turbulent boundary layers with the important example of the stable atmospheric boundary layer in mind is addressed . traditional approac...
1403.6743	i	a number of relaxed , cool - core clusters are hosts to faint , diffuse synchrotron radio sources called `` radio minihalos '' , with a radius comparable to the size of the cooling region ( @xmath1 100 - 300 kpc ) and a steep spectrum ( @xmath2 ; @xmath3 ) . they arise from cosmic - ray electrons ( hereafter cre ) em...	we follow the evolution of cosmic - ray electron spectra and their radio emission using passive tracer particles , taking into account the time - dependent injection of electrons from hadronic interactions and their energy losses . however , we also find important differences with our previous work . this is a much nar...	we present an mhd simulation of the emergence of a radio minihalo in a galaxy cluster core in a `` secondary '' model , where the source of the synchrotron - emitting electrons is hadronic interactions between cosmic - ray protons with the thermal intracluster gas , an alternative to the `` reacceleration model '' wher...
1403.6743	m	for this work , we used the magnetohydrodynamic ( mhd ) simulation of a sloshing cluster core from z13 . we briefly outline the numerical methods and initial setup of this simulation , and refer the reader to zml11 and z13 for further algorithmic details . we performed our mhd simulation of gas sloshing using the ` fla...	we also explore the effect of rapid changes in the magnetic field on the radio spectrum . while the resulting spectra in some regions are steeper than expected from stationary conditions , the change is marginal , with differences in the synchrotron spectral index of , depending on the frequency band . our results prov...	we present an mhd simulation of the emergence of a radio minihalo in a galaxy cluster core in a `` secondary '' model , where the source of the synchrotron - emitting electrons is hadronic interactions between cosmic - ray protons with the thermal intracluster gas , an alternative to the `` reacceleration model '' wher...
1403.6743	i	in this work , we have employed a mhd simulation of gas sloshing in a galaxy cluster core to model the formation of a radio minihalo from hadronically - originating cosmic - ray electrons . we used passive tracer particles to follow the evolution of cre spectra under the assumption that these electrons are continuously...	we present an mhd simulation of the emergence of a radio minihalo in a galaxy cluster core in a `` secondary '' model , where the source of the synchrotron - emitting electrons is hadronic interactions between cosmic - ray protons with the thermal intracluster gas , an alternative to the `` reacceleration model '' wher...	we present an mhd simulation of the emergence of a radio minihalo in a galaxy cluster core in a `` secondary '' model , where the source of the synchrotron - emitting electrons is hadronic interactions between cosmic - ray protons with the thermal intracluster gas , an alternative to the `` reacceleration model '' wher...
1012.5144	c	lccccc solar neighborhood & young & low & @xmath117 & @xmath117 & @xmath117 + bulge & old & high & high & @xmath86 & low + thick disk & old & high & @xmath117 & @xmath117 & low + we present the chemodynamical simulations of a milky way - type galaxy using a self - consistent hydrodynamical code with supernova feedba...	we present chemodynamical simulations of a milky way - type galaxy using a self - consistent hydrodynamical code that includes supernova feedback and chemical enrichment , and predict the spatial distribution of elements from oxygen to zinc . in the simulated galaxy , the kinematical and chemical properties of the bulg...	we present chemodynamical simulations of a milky way - type galaxy using a self - consistent hydrodynamical code that includes supernova feedback and chemical enrichment , and predict the spatial distribution of elements from oxygen to zinc . in the simulated galaxy , the kinematical and chemical properties of the bulg...
0810.5561	c	we have commissioned a high precision , integrated light polarimeter in order to detect variability in the optical , linear polarization of high mass x - ray binaries . this variability should be indicative of system inclination , and high precision monitoring is hoped to constrain the mass of the black holes in these ...	systematic effects have been reduced to less than of the measured polarization for polarized sources and to the part per million level for weakly polarized sources . the high sensitivity of this instrument to asymmetry suggests that valuable contributions will be made in many other fields , including studies of extraso...	we present commissioning data for the polish instrument obtained on the hale 5-m telescope . the goal of this high precision polarimeter is to constrain orbital inclination of high mass x - ray binaries and to therefore obtain independent mass estimates for their black hole companions . we have obtained photon shot noi...
astro-ph0102331	i	ngc6712 is a low - concentration ( @xmath7 , @xmath8 ; , djorgovski & meylan 1993 ) , intermediate - high metallicity ( @xmath9=-1.01 $ ] zinn 1985 ) globular cluster , which has , without doubt , some peculiar characteristics . first , it is the lowest density ggc containing a low mass x - ray binary ( lmxb - namely @...	we present extensive ubvr photometry of the galactic globular cluster ( ggc ) ngc6712 obtained with the eso very large telescope ( vlt ) which reach down to two magnitudes below the main sequence turn - off and allows us for the first time to determine the age of this cluster . by using the apparent luminosity of the z...	we present extensive ubvr photometry of the galactic globular cluster ( ggc ) ngc6712 obtained with the eso very large telescope ( vlt ) which reach down to two magnitudes below the main sequence turn - off and allows us for the first time to determine the age of this cluster . by using the apparent luminosity of the z...
astro-ph0102331	i	in this paper we have presented extensive , high resolution , @xmath149 photometry of the galactic globular cluster ngc6712 , obtained with the eso - very large telescope . this data set gives us the opportunity to investigate the evolved stellar population of the cluster , yielding new constraints on its metallicity ,...	we derive interstellar reddening by comparing the position and morphology of the red giant branch ( rgb ) with a wide variety of reference clusters and find , a value significantly lower than had been determined previously . assuming this value for the reddening we find a population of 108 candidate blue straggler star...	we present extensive ubvr photometry of the galactic globular cluster ( ggc ) ngc6712 obtained with the eso very large telescope ( vlt ) which reach down to two magnitudes below the main sequence turn - off and allows us for the first time to determine the age of this cluster . by using the apparent luminosity of the z...
0902.0610	i	the ngc 7538 ( s158 ) molecular cloud , located in the perseus arm at a distance of 2.8 kpc @xcite , contains many protostellar objects , making it a good candidate to study different stages of star formation . furthermore , there seems to be a progression in evolution from northwest ( the visible h ii region , ngc ...	we present high resolution ( r = 75,000100,000 ) mid - infrared spectra of the high - mass embedded young star irs 1 in the ngc 7538 star - forming region . absorption lines from many rotational states of ch ,cch , ch , ch , nh , hcn , hnco , and cs are seen . the gas temperature , column density , covering factor...	we present high resolution ( r = 75,000100,000 ) mid - infrared spectra of the high - mass embedded young star irs 1 in the ngc 7538 star - forming region . absorption lines from many rotational states of ch ,cch , ch , ch , nh , hcn , hnco , and cs are seen . the gas temperature , column density , covering factor...
0711.0967	i	the `` bullet '' cluster 1e0657 - 56 represents one of the most complex and unusual large - scale structures ever observed . located at a redshift @xmath5 it has the highest x - ray luminosity and temperature of all known clusters as a result of overheating due to a recent supersonic mach @xmath6 @xcite central encount...	the main and the sub - cluster are modeled using extended cuspy dark matter halos and isothermal-profiles for the collisional component . in particular , we investigate the kinematics of the gas and dark matter components as well as the changes in the density profiles and the motion of the system in the diagram .	we present high resolution n - body / sph simulations of the interacting cluster 1e0657 . the main and the sub - cluster are modeled using extended cuspy dark matter halos and isothermal-profiles for the collisional component . the hot gas is initially in hydrostatic equilibrium inside the global potential of the clust...
0711.0967	c	we used high resolution n - body / sph simulations to perform an extensive parameter study of the `` bullet '' cluster system 1e0657 - 56 . collisions of two nfw halos with hot isothermal gas components in hydrostatic equilibrium were studied , adopting initial relative velocities of 5000 , 3000 and 2000 km s@xmath8 , ...	we present high resolution n - body / sph simulations of the interacting cluster 1e0657 . a model with the same mass ratio and lower velocity ( times the main cluster virial velocity ) matches quite well most of the observations . dynamical friction strongly affects the kinematics of the sub - cluster so that the low v...	we present high resolution n - body / sph simulations of the interacting cluster 1e0657 . the main and the sub - cluster are modeled using extended cuspy dark matter halos and isothermal-profiles for the collisional component . the hot gas is initially in hydrostatic equilibrium inside the global potential of the clust...
astro-ph0004383	r	table 1 presents the integrated emission - line flux ratios with respect to and their rest - wavelength equivalent widths for the nuc and ext spectra , shown in figure [ nucextsp ] . the emission line fluxes of nuc were measured from the starlight - subtracted spectrum . the contribution from an old stellar population...	the polarization of the broad mg ii emission line is high ( 29% ) , consistent with the remarkably high polarization ( 30%40% ) observed in the extended continuum emission . this indicates that the off - nuclear continuum is dominated by light scattered from the hidden quasar , most probably by dust mixed with the line...	we present imaging and spectro- polarimetric observations of the ultraluminous infrared galaxy iras p09104 + 4109 using the keck 10-m telescope . we detect the clear presence of broad , , and mg ii 2800 emission lines in the polarized flux spectra of the nucleus and of an extranuclear emission region 4 away , confir...
astro-ph0004383	c	in 3.3 , we presented polarimetric evidence for dust in the scattering regions . diagnostic line ratios also show evidence for dust in the emission line gas . one of the most notable features of the emission line spectra of is the conspicuous absence of all species of fe in ext and their strong presence in nuc ( see ...	the high polarizations , combined with the `` foreshortened '' morphology of the polarized brightness distribution allow us to constrain the scattering biconical structure to be at inclination with a half - opening cone angle 40 . our favored interpretation is that there is a large amount of dust in the extranucle...	we present imaging and spectro- polarimetric observations of the ultraluminous infrared galaxy iras p09104 + 4109 using the keck 10-m telescope . we detect the clear presence of broad , , and mg ii 2800 emission lines in the polarized flux spectra of the nucleus and of an extranuclear emission region 4 away , confir...
astro-ph0004383	i	our high - quality keck spectropolarimetric and imaging polarimetric data confirm the high polarization and broad balmer emission lines in the polarized flux spectra of . in addition , we also detect broad mg ii in both total and polarized flux spectra of the nuclear and extension regions , indicating the presence of a...	we detect the clear presence of broad , , and mg ii 2800 emission lines in the polarized flux spectra of the nucleus and of an extranuclear emission region 4 away , confirming the presence of a hidden central quasar . the line polarizations are positively correlated with critical density , ionization potential , and...	we present imaging and spectro- polarimetric observations of the ultraluminous infrared galaxy iras p09104 + 4109 using the keck 10-m telescope . we detect the clear presence of broad , , and mg ii 2800 emission lines in the polarized flux spectra of the nucleus and of an extranuclear emission region 4 away , confir...
astro-ph0101226	c	lccccccccc 25 & 125 & 55 @xmath41 10 & 6.2 & 6.5 & 23 & 50 & 38 & 6 & 123 6 & 130 & 60 @xmath41 15 & 2.7 & 3.5 & 24 & 50 & 20 & 7 & 12 8 & 5 & 60 @xmath41 5 & 1.9 & 4.5 & 13 & 115 & 138 & 73 & 225 20 & 70 & 65 @xmath41 10 & 0.4 & 3.2 & 23 & 30 & 6.7 & 17 & 15 21 & 80 & 60 @xmath41 5 & 1.4 & 3.5 & 27 & 55 & 24 & 17 & 12...	the central regions of the two most probable parent galaxies , n7319 and n7318b , contain little or no gas whereas the intragroup medium , and particularly the optical tails that seem to be associated with n7318b are rich in cold and ionized gas . in addition the ratios between their star formation rates determined ...	we present kinematic and photometric evidence for the presence of seven candidate tidal dwarf galaxies in stephan s quintet . the central regions of the two most probable parent galaxies , n7319 and n7318b , contain little or no gas whereas the intragroup medium , and particularly the optical tails that seem to be asso...
astro-ph0101226	i	we presented b and r photometry and a fabry - perot h@xmath0 map of 23 emission - line regions in stephan s quintet . all but one region may be associated with n7318b ( region 6 may be attached either to n7319 or to n7318a ) . * we find that seven of the regions have velocity gradients greater than 8 h@xmath9 km s@xmat...	two tidal - dwarf candidates may be located at the edge of a tidal tail , one within a tail and for four others there is no obvious stellar / gaseous bridge between them and the parent galaxy . two of the candidates are associated with hi clouds , one of which is , in addition , associated with a co cloud . all seven r...	we present kinematic and photometric evidence for the presence of seven candidate tidal dwarf galaxies in stephan s quintet . the central regions of the two most probable parent galaxies , n7319 and n7318b , contain little or no gas whereas the intragroup medium , and particularly the optical tails that seem to be asso...
astro-ph9911488	i	knowledge of the distribution and kinematics of the circumnuclear molecular gas in seyfert galaxies is essential for understanding the fueling of the central region and the role of gas and dust in obscuring the active galactic nucleus ( agn ) . recent improvements in millimeter interferometry now allow us to observe mo...	we present new interferometer observations of theco ( 10 ) andco ( 21 ) line emission of ngc 1068 with a resolution of . we constructed kinematic models for the molecular gas using elliptical orbits caused by a ( 72 pc ) nuclear bar and using tilted rings resulting in a warp .	we present new interferometer observations of theco ( 10 ) andco ( 21 ) line emission of ngc 1068 with a resolution of . the molecular gas in the inner is resolved into a ring with two bright knots east and west of the nuclear continuum emission . for the first time in ngc 1068 , we can trace molecular gas at ( 13 p...
astro-ph9911488	c	\1 . _ molecular gas close to the nucleus. _ our new interferometric data allow a high - sensitivity study of the molecular gas in the inner 1 arcmin of ngc 1068 at high angular ( @xmath189 ) and spectral resolution ( 10 ) . we made detailed maps of the 200pc - diameter nuclear ring indicated in previous molecular - ...	this value is consistent with a black hole mass ofm , as estimated from nuclear ho maser emission , plus a contribution from a compact nuclear stellar cluster . the low velocity dispersion indicates the molecular gas is in a disk with a thickness of 10 pc in the nuclear region and 100 pc in the spiral arms . the m...	we present new interferometer observations of theco ( 10 ) andco ( 21 ) line emission of ngc 1068 with a resolution of . the molecular gas in the inner is resolved into a ring with two bright knots east and west of the nuclear continuum emission . for the first time in ngc 1068 , we can trace molecular gas at ( 13 p...
1509.07512	i	molecular gas is observationally linked to ongoing star formation through observed correlations between the star formation rate surface density and the h@xmath10 surface density as inferred from co observations ( e.g. , * ? ? ? * ; * ? ? ? co ( 10 ) has a relatively low critical density ( n@xmath11 @xmath12 ) and so t...	we present new iram 30 m spectroscopic observations of the ghz band , including emission from the cch ( n = ) multiplet , hcn ( j = ) , hco ( j = ) , and hnc ( j = ) , for a sample of 58 local luminous and ultraluminous infrared galaxies from the great observatories all - sky lirg survey ( goals ) . by comb...	we present new iram 30 m spectroscopic observations of the ghz band , including emission from the cch ( n = ) multiplet , hcn ( j = ) , hco ( j = ) , and hnc ( j = ) , for a sample of 58 local luminous and ultraluminous infrared galaxies from the great observatories all - sky lirg survey ( goals ) . by comb...
1509.07512	i	we make use of new measurements of the putative high density gas tracers hcn ( 10 ) and hco@xmath2 ( 10 ) in a sample of local ( u)lirgs . a comparison between the ratios of these lines and the @xmath58 pah eqw mid - infrared agn indicator suggests enhancements in the global hcn ( 10 ) emission ( relative to hco@xma...	we find a linear relationship ( within the uncertainties ) between(l ) and(l ) , consistent with most previous findings . the galaxy - integrated hcn ( 10 ) and hco ( 10 ) emission do not appear to have a simple interpretation , in terms of the agn dominance or the star formation rate , and are likely determined by m...	we present new iram 30 m spectroscopic observations of the ghz band , including emission from the cch ( n = ) multiplet , hcn ( j = ) , hco ( j = ) , and hnc ( j = ) , for a sample of 58 local luminous and ultraluminous infrared galaxies from the great observatories all - sky lirg survey ( goals ) . by comb...
1001.5281	r	in what follows we first describe the dynamics of the shear instability as deduced from the numerical simulations and then contrast our results with the phenomenological predictions on the necessary conditions for its development . . for each panel the upper part reports the evolution of the bar - distortion param...	this class of instability , which has so far been found only for small values of and with very small growth rates , is therefore more generic than previously found and potentially more effective in producing strong sources of gravitational waves . our results provide additional insight on shear instabilities and on the...	we present new results on instabilities in rapidly and differentially rotating neutron stars . we model the stars in full general relativity and describe the stellar matter adopting a cold realistic equation of state based on the unified sly prescription . we provide evidence that rapidly and differentially rotating s...
1001.5281	c	for many years the properties of rapidly rotating and self - gravitating fluids have been characterized by a complete analytic perturbative theory which provided , for instance , sufficient conditions for the development of instabilities ( see , for instance , @xcite for a collection of results ) . as numerical simula...	we provide evidence that rapidly and differentially rotating stars that are below the expected threshold for the dynamical bar - mode instability , , do nevertheless develop a shear instability on a dynamical timescale and for a wide range of values of . overall , our findings support the phenomenological predictions m...	we present new results on instabilities in rapidly and differentially rotating neutron stars . we model the stars in full general relativity and describe the stellar matter adopting a cold realistic equation of state based on the unified sly prescription . we provide evidence that rapidly and differentially rotating s...
astro-ph0002021	i	understanding the host galaxies of active galactic nuclei ( agn ) is now recognised as an important step on the path towards reaching an understanding of agn themselves - how they form , how they are fuelled and how the differences between the various classes of object arise . in two areas in particular the nature of t...	the sample consists of radio - quiet quasars , radio - loud quasars ( all with ) and radio galaxies of fanaroff & riley type ii ( with extended radio luminosities and spectral indices comparable to those of the radio - loud quasars ) . 2000 ) . galaxies : stellar content galaxies : active quasars : general	we present optical ( to ) off - nuclear spectra of 26 powerful active galaxies in the redshift range , obtained with the mayall and william herschel 4-meter class telescopes . the sample consists of radio - quiet quasars , radio - loud quasars ( all with ) and radio galaxies of fanaroff & riley type ii ( with extend...
astro-ph0002021	r	the galaxy spectra themselves are displayed in figure 2 along with nuclear spectra for the same object , where such are available . all the data have been smoothed to 10- bins , and the wht data are displayed with the region linking the individual red and blue spectra blanked out as described above . the expected po...	the majority of the resulting spectra appear to be dominated by the integrated stellar continuum of the underlying galaxies rather than by light from the non - stellar processes occurring in the active nuclei , and in many cases a 4000 break feature can be identified . the individual spectra are described in detail , ...	we present optical ( to ) off - nuclear spectra of 26 powerful active galaxies in the redshift range , obtained with the mayall and william herschel 4-meter class telescopes . the sample consists of radio - quiet quasars , radio - loud quasars ( all with ) and radio galaxies of fanaroff & riley type ii ( with extend...
astro-ph0112455	c	thanks to the identification of 61 sources of the hellas sample we have been able to double the number of hard x - ray agn1 available for statistical analysis at fluxes in the range @xmath114@xmath55 erg @xmath3 s@xmath4 . in total we can use 74 agn1 at these fluxes ( 37 from hellas ) , which combined with the local sa...	there is evidence for significant cosmological evolution according to a pure luminosity evolution ( ple ) model , with=2.12 and=2.22 ( ) in a (,)=(1.0,0.0 ) and in a (,)=(0.3,0.7 ) cosmology , respectively . however , in both cosmologies , the statistic is not significant enough to distinguish between the ple and ldde ...	we present optical spectroscopic identifications of hard x - ray ( 5 - 10 kev ) selected sources belonging to the hellas sample obtained with _ bepposax _ down to a 5 - 10 kev flux limit of erg s . the sample consists of 118 sources . 25 sources have been identified trough correlations with catalogues of known sources ...
astro-ph0110160	i	we have presented photometry of over 300,000 stars in the @xmath1 ori region . using the spectroscopic survey from papers i and ii to define the photometric characteristics of pms stars , we culled more than 99.9% of the field stars from our sample . further statistical field star subtraction then leaves a representa...	we present photometry of 320,917 stars with throughout the ori star - forming region . using the more spatially limited spectroscopic surveys of dolan & mathieu to define the color - magnitude domain of young low - mass members of the association , and removing statistically the field stars in this domain we infer tha...	we present photometry of 320,917 stars with throughout the ori star - forming region . using the more spatially limited spectroscopic surveys of dolan & mathieu to define the color - magnitude domain of young low - mass members of the association , and removing statistically the field stars in this domain , we use our...