article_id stringlengths 9 15 | abstract_text stringlengths 390 2.07k | token_count int64 100 300 |
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1107.0571 | a new , improved split - step backward euler ( ssbe ) method is introduced and analyzed for stochastic differential delay equations(sddes ) with generic variable delay . the method is proved to be convergent in mean - square sense under conditions ( assumption [ olc ] ) that the diffusion coefficient @xmath0 is globall... | 196 |
1702.07221 | we develop an approach to liquid thermodynamics based on collective modes . we perform extensive molecular dynamics simulations of noble , molecular and metallic liquids and provide the direct evidence that liquid energy and specific heat are well - described by the temperature dependence of the frenkel ( hopping ) fre... | 107 |
astro-ph0308293 | there are several physical processes to remove gas from galaxies in clusters , with subsequent starvation and star formation quenching : tidal interactions between galaxies , or tidal stripping from the cluster potential itself , interactions with the hot intra - cluster medium ( icm ) through ram pressure , turbulent ... | 100 |
1208.2403 | ieee 802.15.4 standard is designed for low power and low data rate applications with high reliability . it operates in beacon enable and non - beacon enable modes . in this work , we analyze delay , throughput , load , and end - to - end delay of non - beacon enable mode . analysis of these parameters are performed at ... | 159 |
1403.7867 | we consider the problem of hypothesis testing in the situation when the first hypothesis is simple and the second one is local one - sided composite . we describe the choice of the thresholds and the power functions of the score function test , of the general likelihood ratio test , of the wald test and of two bayes te... | 134 |
astro-ph0512031 | we demonstrate that gravitationally lensed quasars are easily recognized using image subtraction methods as time variable sources that are spatially extended . for galactic latitudes @xmath0 , lensed quasars dominate the population of spatially extended variable sources , although there is some contamination from varia... | 105 |
1403.7013 | salkuyeh proposed the picard - hss iteration method to solve the absolute value equation ( ave ) , which is a class of non - differentiable np - hard problem . to further improve its performance , a nonlinear hss - like iteration method is proposed . compared to that the picard - hss method is an inner - outer double -... | 122 |
1002.0469 | we numerically investigate the excitation and temporal evolution of oscillations in a two - dimensional coronal arcade by including the three - dimensional propagation of perturbations . the time evolution of impulsively generated perturbations is studied by solving the linear , ideal magnetohydrodynamic ( mhd ) equati... | 271 |
1510.07090 | the social connections people form online affect the quality of information they receive and their online experience . although a host of socioeconomic and cognitive factors were implicated in the formation of offline social ties , few of them have been empirically validated , particularly in an online setting . in thi... | 253 |
astro-ph9709154 | we present a detailed analysis of the ionisation state and heavy element abundances in the intergalactic medium ( igm ) . the civ doublet is shown by 30 % of the 182 selected optically thin clouds in 10 qso lines of sight . direct metallicy calculations have been performed on individual systems with detected civ and si... | 192 |
1606.00124 | content delivery success in wireless caching helper networks depends mainly on cache - based channel selection diversity and network interference . for given channel fading and network geometry , both channel selection diversity and network interference dynamically vary according to what and how the caching helpers cac... | 218 |
0706.3780 | we first show that a large amount of metal - poor gas is stripped from the small magellanic cloud ( smc ) and fallen into the large magellanic cloud ( lmc ) during the tidal interaction between the smc , the lmc , and the galaxy over the last 2 gyrs . we propose that this metal - poor gas can closely be associated with... | 291 |
astro-ph0505235 | we present simulations of triton s post - capture orbit that confirm the importance of kozai - type oscillations in its orbital elements . in the context of the tidal orbital evolution model , these variations require average pericenter distances much higher than previously published , and the timescale for the tidal o... | 217 |
0904.3958 | the akari and spitzer satellites provided an unique opportunity to observe a variety of stars , which are considered as departing from the asymptotic giant branch ( agb ) and have started their post - agb evolution recently . most of these stars are absent optically and are bright in the mid - ir wavelength range . spe... | 275 |
1512.05240 | this paper continues a study initiated in @xcite , on the localization transition of a lattice free field on @xmath0 interacting with a quenched disordered substrate that acts on the interface when its height is close to zero . the substrate has the tendency to localize or repel the interface at different sites . a tra... | 237 |
1210.0174 | we propose the concept of a terahertz ( thz ) uncooled bolometer based on n - type and p - type graphene layers ( gls ) , constituting the absorbing regions , connected by an array of undoped graphene nanoribbons ( gnrs ) . the gls absorb the thz radiation with the gnr array playing the role of the barrier region ( res... | 162 |
physics0304084 | energies of @xmath0 ( @xmath1 ) and @xmath2 states in neutral ag and ag - like ions with nuclear charges @xmath3 are calculated using relativistic many - body perturbation theory . reduced matrix elements , oscillator strengths , transition rates and lifetimes are calculated for the 17 possible @xmath4 and @xmath5 elec... | 130 |
astro-ph0510206 | although some of the properties of the caustics in planetary microlensing have been known , our understanding of them is mostly from scattered information based on numerical approaches . in this paper , we conduct a comprehensive and analytic analysis of the properties of the planetary caustics , which are one of the t... | 203 |
1505.02096 | we report on _ nustar _ , _ xmm - newton _ and _ swift _ observations of the gamma - ray binary 1fgl j1018.6@xmath05856 . we measure the orbital period to be @xmath1 days using _ swift _ data spanning 1900 days . the orbital period is different from the 2011 gamma - ray measurement which was used in the previous x - ra... | 222 |
0905.4831 | mesoscopic hydrodynamic equations are solved to investigate the dynamics of nanodroplets positioned near a topographic step of the supporting substrate . our results show that the dynamics depends on the characteristic length scales of the system given by the height of the step and the size of the nanodroplets as well ... | 159 |
1010.5907 | we investigate the use of the multiple optimised parameter estimation and data compression algorithm ( moped ) for data compression and faster evaluation of likelihood functions . since moped only guarantees maintaining the fisher matrix of the likelihood at a chosen point , multimodal and some degenerate distributions... | 138 |
1212.5640 | due to its proximity , the mass of the supermassive black hole in the nucleus of andromeda galaxy ( m31 ) , the most massive black hole in the local group of galaxies , has been measured by several methods involving the kinematics of a stellar disk that surrounds it . we report here the discovery of an eccentric h@xmat... | 269 |
1611.05304 | recent literature on the aharonov - bohm effect has raised fundamental questions on the classical correspondence of this effect and the physical reality of the electromagnetic potentials in quantum mechanics . reappraisal on feynman s approach to the classical limit of ab effect is presented . the critique throws light... | 173 |
1111.7174 | motivated by recent scanning tunneling and photoemission spectroscopy measurements on self - organized gold chains on a germanium surface we reinvestigate the local single - particle spectral properties of luttinger liquids . in the first part we use the bosonization approach to exactly compute the local spectral funct... | 294 |
1209.4105 | transverse momentum integrated multiplicities in the central region of @xmath0 collisions at lhc energies satisfy koba - nielsen - olesen scaling . we attempt to relate this finding to multiplicity distributions of soft gluons . kno scaling emerges if the effective theory describing color charge fluctuations at a scale... | 132 |
astro-ph0604332 | we report on the detection in sloan digital sky survey data of a @xmath0-long tidal stream of stars , extending from ursa major to cancer . the stream has no obvious association with the orbit of any known cluster or galaxy . the contrast of the detected stream is greatest when using a star count filter that is matched... | 189 |
1312.0303 | we propose algorithms , based on the multi - scale entanglement renormalization ansatz , to obtain the ground state of quantum critical systems in the presence of boundaries , impurities , or interfaces . by exploiting the theory of minimal updates [ ref . : g. evenbly and g. vidal , arxiv:1307.0831 ] , the ground stat... | 137 |
0810.4605 | we study the changes in the fermi surface with electron doping in the lafeaso@xmath0f@xmath1 superconductors with density - functional supercell calculations using the linearized augmented planewave ( lapw ) method . the supercell calculations with explicit f substitution are compared with those obtained from the virtu... | 238 |
nlin0503060 | an adequate characterization of the dynamics of hamiltonian systems at physically relevant scales has been largely lacking . here we investigate this fundamental problem and we show that the finite - scale hamiltonian dynamics is governed by effective dynamical invariants , which are significantly different from the dy... | 117 |
1410.3080 | a bayesian compressive sensing framework is developed for video reconstruction based on the color coded aperture compressive temporal imaging ( cacti ) system . by exploiting the three dimension ( 3d ) tree structure of the wavelet and discrete cosine transformation ( dct ) coefficients , a bayesian compressive sensing... | 100 |
0908.3900 | we introduce the class of intermediate mass binaries named double periodic variables ( dpvs ) , characterized by orbital photometric variability ( ellipsoidal or eclipsing ) in time scales of few days and a long photometric cycle lasting roughly 33 times the orbital period . after a search conducted in the ogle and asa... | 211 |
cond-mat0104532 | we study nonlinear random resistor diode networks at the transition from the non percolating to the directed percolating phase . the resistor - like bonds and the diode - like bonds under forward bias voltage obey a generalized ohm s law , @xmath0 . based on general grounds as symmetries and relevance we develop a fiel... | 141 |
astro-ph0208026 | we investigate the environments of quasars such as number distribution of galaxies using a semi - analytic model which includes both galaxy and quasar formations based on the hierarchical clustering scenario . we assume that a supermassive black hole is fueled by accretion of cold gas and that it is a source of quasar ... | 265 |
1610.03021 | we explore the spectral properties of the time - dependent maxwell s equations for a plane interface between a metamaterial represented by the drude model and the vacuum , which fill respectively complementary half - spaces . we construct explicitly a generalized fourier transform which diagonalizes the hamiltonian tha... | 113 |
astro-ph0602520 | when integrals in the standard tremaine - weinberg method are evaluated for the case of a realistic model of a doubly barred galaxy , their modifications introduced by the second rotating pattern are in accord with what can be derived from a simple extension of that method , based on separation of tracer s density . th... | 164 |
1204.2471 | the numerical convergence of smoothed particle hydrodynamics ( sph ) can be severely restricted by random force errors induced by particle disorder , especially in shear flows , which are ubiquitous in astrophysics . the increase in the number @xmath0 of neighbours when switching to more extended smoothing kernels _ at... | 261 |
1301.6244 | we report a detailed examination of the fine structure inside flare ribbons and the temporal evolution of this fine structure during the x2.5 solar flare that occurred on 2004 november 10 . we examine elementary bursts of the @xmath0 ( @xmath11550 ) emission lines seen as local transient brightenings inside the flare r... | 250 |
0902.0219 | we study the quantum phase transition between abelian and non - abelian phases in an extended kitaev spin model on the honeycomb lattice , where the periodic boundary condition is applied by placing the lattice on a torus . our analytical results show that this spin model exhibits a continuous quantum phase transition ... | 101 |
0704.1804 | dilute fermi systems with large @xmath0-wave scattering length @xmath1 exhibit universal properties if the interparticle spacing @xmath2 greatly exceeds the range of the underlying two - body interaction potential . in this regime , @xmath2 is the only relevant length scale and observables such as the energy per partic... | 184 |
1202.0648 | scattering of two baryons in the large-@xmath0 gross - neveu model via the time - dependent dirac - hartree - fock approach has recently been solved in closed analytical form . here , we generalize this result to scattering processes involving any number and complexity of the scatterers . the result is extrapolated fro... | 167 |
1402.7236 | the sign change of the slope of the directed flow of baryons has been predicted as a signal for a first order phase transition within fluid dynamical calculations . recently , the directed flow of identified particles has been measured by the star collaboration in the beam energy scan ( bes ) program . in this article ... | 233 |
1109.2600 | we present a phenomenological theory of the interplay between nematic order and superconductivity in the vicinity of a vortex induced by an applied magnetic field . nematic order can be strongly enhanced in the vortex core . as a result , the vortex cores become elliptical in shape . for the case where there is weak bu... | 140 |
hep-ph0308070 | within the borel qcd sum rule approach at finite baryon density we study the role of the four - quark condensates for the modifications of the vector mesons @xmath0 , @xmath1 and @xmath2 in nuclear matter . we find that in - medium modifications of the @xmath0 and @xmath1 mesons are essentially dominated by the depende... | 227 |
astro-ph0204322 | we use galaxies detected in a deep ultraviolet xmm - newton optical monitor image and a model that predicts uv galaxy counts based on local counts and evolution parameters to constrain galaxy evolution to z=1.2 . the 17 square 2000 ( uvw2 filter ) image was taken as part of the xmm - om team s guaranteed time program .... | 199 |
0904.1245 | the main purpose of this article is to extend some of the ideas from schubert calculus to the more general setting of hamiltonian torus actions on compact symplectic manifolds with isolated fixed points . given a generic component @xmath0 of the moment map , which is a morse function , we define a canonical class @xmat... | 234 |
1603.07434 | we study physics concerning the cosmological constant problem in the framework of effective field theory and suggest that a dominant part of dark energy can originate from gravitational corrections of vacuum energy , under the assumption that the classical gravitational fields do not couple to a large portion of the va... | 136 |
astro-ph0608034 | we consider the hypothesis of a limiting minimal curvature in gravity as a way to construct a class of theories exhibiting late - time cosmic acceleration . guided by the minimal curvature conjecture ( mcc ) we are naturally lead to a set of scalar tensor theories in which the scalar is non - minimally coupled both to ... | 149 |
nucl-th0005076 | most nuclear physics ranges from insensitive to relatively insensitive to many - nucleon forces . the dominant ingredient in calculations of nuclear properties is the nucleon - nucleon potential . three - nucleon forces nevertheless play an important role in nuclear physics because of the great precision of modern calc... | 132 |
0707.2764 | the measurement of doppler velocity shifts in spectra is a ubiquitous theme in astronomy , usually handled by computing the cross - correlation of the signals , and finding the location of its maximum . this paper addresses the problem of the determination of wavelength or velocity shifts among multiple spectra of the ... | 234 |
hep-ex9812030 | recent experimental results on the partonic structure of the photon and on the color singlet exchange in strong interaction processes are reviewed . at the lep @xmath0 and hera @xmath1 colliders , complementary and consistent measurements have been achieved on the quark - gluon structure of quasi - real and virtual pho... | 180 |
astro-ph9811161 | we present a new scheme for modeling the broad line region in active galactic nuclei . it involves photoionization calculations applied to a number of variable emission lines at _ all times_. we demonstrate how fitting all lines simultaneously provide strong constraints on several of the more important parameters , suc... | 188 |
0809.1189 | we define a volume limited sample of over 14,000 early - type galaxies ( etgs ) selected from data release six of the sloan digital sky survey . the density of environment of each galaxy is robustly measured . by comparing narrow band spectral line indices with recent models of simple stellar populations ( ssps ) we in... | 238 |
1611.09872 | the recently proposed effective potential theory [ phys . rev . lett . 110 , 235001 ( 2013 ) ] allows evaluating transport in coupled plasmas with the well - developed formalisms for systems with binary collisions . to facilitate practical implementation of this concept in fluid models of multi - component plasmas , co... | 115 |
cond-mat9708021 | we discuss the effect of disorder on the coherent propagation of the bound state of two attracting particles . it is shown that a result analogous to the anderson theorem for dirty superconductors is also valid for the cooper problem , namely , that the pair wave function is extended beyond the single - particle locali... | 115 |
1610.03369 | based on a lie symmetry analysis , we construct a closed form solution to the kinematic part of the ( partial differential ) cosserat equations describing the mechanical behavior of elastic rods . the solution depends on two arbitrary analytical vector functions and is analytical everywhere except a certain domain of t... | 164 |
astro-ph0005374 | we present the results of a 2-d , two fluid ( ions and neutrals ) simulation of the ambipolar filamentation process , in which a magnetized , weakly ionized plasma is stirred by turbulence in the ambipolar frequency range . the higher turbulent velocity of the neutrals in the most ionized regions gives rise to a non - ... | 111 |
0812.1386 | we present two - color modulation transfer spectroscopy as a tool for precision studies of atomic properties of excited states . the bi - colored technique addresses a narrow set of velocity groups of a thermal atomic vapour using a two - step transition to burn a hole " in the velocity distribution . the resulting spe... | 116 |
astro-ph0006457 | high resolution spectra of the active binary capella ( g8 iii + g1 iii ) covering the energy range 0.4 - 8.0 kev ( 1.5 - 30 ) show a large number of emission lines , demonstrating the performance of the hetgs . a preliminary application of plasma diagnostics provides information on coronal temperatures and densities . ... | 170 |
physics0510237 | the time dependence of the survival probability of an opinion in a closed community has been investigated in accordance with social temperature by using the kawasaki - exchange dynamics based on previous study in ref . [ 1 ] . it is shown that the survival probability of opinion decays with stretched exponential law co... | 112 |
1304.5541 | as the title suggests , the purpose of this chapter is to review the current status of numerical simulations of black hole accretion disks . this chapter focuses exclusively on _ global _ simulations of the accretion process within a few tens of gravitational radii of the black hole . most of the simulations discussed ... | 111 |
1001.4250 | we present a theoretical study of time - dependent quantum transport in a resonant tunnel junction coupled to a nanomechanical oscillator within the non - equilibrium green s function technique . an arbitrary voltage is applied to the tunnel junction and electrons in the leads are considered to be at zero temperature .... | 208 |
1210.8149 | the m82 ` cap ' is a gas cloud at a projected radius of 11.6 kpc along the minor axis of this well known superwind source . the cap has been detected in optical line emission and x - ray emission and therefore provides an important probe of the wind energetics . in order to investigate the ionization source of the cap ... | 274 |
0901.0617 | we exploit the recent observations of extremely metal - poor ( emp ) stars in the galactic halo and investigate the constraints on the initial mass function ( imf ) of the stellar population that left these low - mass survivors of @xmath0}\lesssim -2.5 $ ] and the chemical evolution that took part in . a high - mass na... | 262 |
1005.1705 | integration of the form @xmath0 , where @xmath1 is either @xmath2 or @xmath3 , is widely encountered in many engineering and scientific applications , such as those involving fourier or laplace transforms . often such integrals are approximated by a numerical integration over a finite domain @xmath4 , leaving a truncat... | 159 |
cond-mat0006244 | we present a detailed study of the transport and energetics of a brownian particle moving in a periodic potential in the presence of an adiabatic external periodic drive . the particle is considered to move in a medium with periodic space dependent friction with the same periodicity as that of the potential but with a ... | 174 |
cond-mat0106220 | a zero temperature dynamics of ising spin glasses and ferromagnets on random graphs of finite connectivity is considered , like granular media these systems have an extensive entropy of metastable states . we consider the problem of what energy a randomly prepared spin system falls to before becoming stuck in a metasta... | 195 |
1212.4426 | the attenuation of atmospheric cherenkov photons is dominated by two processes : rayleigh scattering from the molecular component and mie scattering from the aerosol component . aerosols are expected to contribute up to 30 wm@xmath0 to the emission profile of the atmosphere , equivalent to a difference of @xmath1c to t... | 146 |
1212.1336 | we report measurements of the exclusive electroproduction of @xmath0 and @xmath1 final states from an unpolarized proton target using the clas detector at the thomas jefferson national accelerator facility . the separated structure functions @xmath2 , @xmath3 , @xmath4 , and @xmath5 were extracted from the @xmath6-depe... | 139 |
nucl-th0403041 | to elucidate the mechanism by which chaos is generated in the shell model , we compare three random matrix ensembles : the gaussian orthogonal ensemble , french s two body embedded ensemble , and the two body random ensemble ( tbre ) of the shell model . of these , the last two take account of the two body nature of th... | 156 |
0905.4423 | we apply a recently proposed density functional for mixtures of parallel hard cylinders , based on rosenfeld s fundamental measure theory , to study the effect of length - polydispersity on the relative stability between the smectic and columnar liquid crystal phases . to this purpose we derive from this functional an ... | 249 |
astro-ph9702016 | we report results of rxte observations of psr b1951 + 32 using the pca instrument for 19k seconds during 1996 march 24th . we applied the contemporaneous radio ephemeris and various statistical tests to search for evidence of pulsation . these analyses yield intriguing yet inconclusive evidence for the presence of the ... | 258 |
0709.3035 | a detailed study is presented of the search for higgs bosons in the b - decay channel in the central exclusive production process at the lhc . we present results for proton tagging detectors at both 220 m and 420 m around atlas or cms . we consider two benchmark scenarios ; a standard model ( sm ) higgs boson and the @... | 164 |
1304.2076 | a bound - state field theory approach to muonic hydrogen is set up using a variant of the furry representation in which the lowest - order hamiltonian describes a muon in the presence of a point coulomb field , but the origin of the binding field is taken to be three charged quarks in the proton which are modeled as di... | 154 |
astro-ph9909505 | 2 is a second generation microlensing experiment operating since mid-1996 at the european southern observatory ( eso ) at la silla ( chile ) . we present the two year analysis from our microlensing search towards the small magellanic cloud ( ) , and report on the intensive observation of the caustic crossing event -98 ... | 114 |
1303.3678 | we discuss hall effect and power dissipation in chiral @xmath0-wave superconductors near kosterlitz - thouless transition in the absence of applied magnetic field . in bound pair dynamics picture , nonzero hall conductivity emerges when vortex - antivortex bound pair polarization has a component transverse to the direc... | 202 |
1301.6983 | motivated by questions about square - free monomial ideals in polynomial rings , in 2010 francisco et al . conjectured that for every positive integer @xmath0 and every @xmath0-critical ( i.e. , critically @xmath0-chromatic ) graph , there is a set of vertices whose replication produces a @xmath1-critical graph . ( the... | 145 |
nucl-th9609037 | the universal curve @xmath0 of nuclear photoabsorption is investigated within a fermi gas model of nuclear matter . an energy range from pion threshold up to 400 mev is considered . the interactions between nucleon , pion , @xmath1-isobar and photon are considered in the non - relativistic approximation with correction... | 174 |
1206.0314 | dwarf galaxies are good candidates to investigate the nature of dark matter , because their kinematics are dominated by this component down to small galactocentric radii . we present here the results of detailed kinematic analysis and mass modelling of the orion dwarf galaxy , for which we derive a high quality and hig... | 254 |
0910.2984 | results are reported from a joint analysis of phase i and phase ii data from the sudbury neutrino observatory . the effective electron kinetic energy threshold used is @xmath0 mev , the lowest analysis threshold yet achieved with water cherenkov detector data . in units of @xmath1 @xmath2 s@xmath3 , the total flux of a... | 242 |
1001.3152 | in this paper we present the results of @xmath0-body simulations with a scalar field coupled differently to cold dark matter ( cdm ) and baryons . the scalar field potential and coupling function are chosen such that the scalar field acquires a heavy mass in regions with high cdm density and thus behaves like a chamele... | 197 |
1611.05854 | global , population - wide oscillations in models of cyclic dominance may result in the collapse of biodiversity due to the accidental extinction of one species in the loop . previous research has shown that such oscillations can emerge if the interaction network has small - world properties , and more generally , beca... | 214 |
0809.3330 | this paper studies infinite graphs produced from a natural unfolding operation applied to finite graphs . graphs produced via such operations are of finite degree and automatic over the unary alphabet ( that is , they can be described by finite automata over unary alphabet ) . we investigate algorithmic properties of s... | 162 |
0805.1796 | it is shown that the molecular ion @xmath0 does not exist in a form of the equilateral triangle . to this end , a compact variational method is presented which is based on a linear superposition of six specially tailored trial functions containing non - linear parameters . careful optimization of a total of fifteen par... | 101 |
1307.7838 | we study bidding and pricing competition between two spiteful mobile network operators ( mnos ) with considering their existing spectrum holdings . given asymmetric - valued spectrum blocks are auctioned off to them via a first - price sealed - bid auction , we investigate the interactions between two spiteful mnos and... | 190 |
cond-mat0502213 | we study channelization and slope destabilization driven by subsurface ( groundwater ) flow in a laboratory experiment . the pressure of the water entering the sandpile from below as well as the slope of the sandpile are varied . we present quantitative understanding of the three modes of sediment mobilization in this ... | 156 |
hep-ph9802301 | the _ rhic _ facility at _ bnl _ will be operating soon , part of the year , as a polarized proton - proton collider . this will allow the undertaking of a vast spin physics programme , mainly by the two large detectors _ phenix _ and _ star_. we review some theoretical aspects of this research programme which will all... | 102 |
0812.4794 | propagation of extremely short electromagnetic pulses in a homogeneous doubly - resonant medium is considered in the framework of the total maxwell - duffing - lorentz model , where the duffing oscillators ( anharmonic oscillators with cubic nonlinearities ) represent the dielectric response of the medium , and the lor... | 180 |
cond-mat0512145 | we propose a general geometric growth model for pseudofractal scale - free web , which is controlled by two tunable parameters . we derive exactly the main characteristics of the networks : degree distribution , second moment of degree distribution , degree correlations , distribution of clustering coefficient , as wel... | 169 |
astro-ph0411037 | we investigate the relationship between the colors , luminosities , and environments of galaxies in the sloan digital sky survey spectroscopic sample , using environmental measurements on scales ranging from @xmath0 to @xmath1 @xmath2 mpc . we find : ( 1 ) that the relationship between color and environment persists ev... | 181 |
1502.01311 | global magnetic field extrapolations are now revealing the huge complexity of the sun s corona , and in particular the structure of the boundary between open and closed magnetic flux . moreover , recent developments indicate that magnetic reconnection in the corona likely occurs in highly fragmented current layers , an... | 287 |
cond-mat9802049 | a numerical method is described for evaluating transverse spin correlations in the random phase approximation . quantum spin - fluctuation corrections to sublattice magnetization are evaluated for the antiferromagnetic ground state of the half - filled hubbard model in two and three dimensions in the whole @xmath0 rang... | 133 |
hep-ph0105236 | coupled , multi - field models of inflation can provide several attractive features unavailable in the case of a single inflaton field . these models have a rich dynamical structure resulting from the interaction of the fields and their associated fluctuations . we present a formalism to study the nonequilibrium dynami... | 223 |
1203.1169 | high - brightness electron beams with low energy spread at existing and future x - ray free - electron lasers are affected by various collective beam self - interactions and microbunching instabilities . the corresponding coherent optical radiation effects , e.g. , coherent optical transition radiation , impede electro... | 178 |
astro-ph0404085 | we measure the angular power spectrum @xmath0 of radio galaxies in the nrao vla sky survey ( nvss ) using two independent methods : direct spherical harmonic analysis and maximum likelihood estimation . the results are consistent and can be understood using models for the spatial matter power spectrum and for the redsh... | 181 |
astro-ph0510257 | we report the results of our _ chandra _ observations of six qsos at @xmath0 from the palomer transit grism survey . our primary goal is to investigate the possible systematic change of @xmath1 between @xmath2 and @xmath0 , between which a rapid rise of luminous qso number density with cosmic time is observed . the sum... | 195 |
cond-mat0502583 | the increasing scientific and technological interest in nanoparticles has raised the need for fast , efficient and precise characterization techniques . powder diffraction is a very efficient experimental method , as it is straightforward and non - destructive . however , its use for extracting information regarding ve... | 102 |
1202.5231 | we extend the higgs triplet model so as to include dark matter candidates and a simple suppression mechanism for the vacuum expectation value ( @xmath0 ) of the triplet scalar field . the smallness of neutrino masses can be naturally explained with the suppressed value of @xmath0 even when the triplet fields are at the... | 146 |
astro-ph0605158 | we present new observations of the cepa - east region of massive star formation and describe an extended and dynamically distinct feature not previously recognised . this feature is present in emission from h@xmath0cs , ocs , ch@xmath1oh , and hdo at 5.5 km s@xmath2 , but is not traced by conventional tracers of star f... | 207 |
1504.02703 | a _ primitive hole _ of a graph @xmath0 is a cycle of length @xmath1 in @xmath0 . the number of primitive holes in a given graph @xmath0 is called the primitive hole number of that graph @xmath0 . the primitive degree of a vertex @xmath2 of a given graph @xmath0 is the number of primitive holes incident on the vertex @... | 191 |
1105.3165 | we investigate particle production in an expanding universe under the assumption that the lagrangian contains the einstein term @xmath0 plus a modified gravity term of the form @xmath1 , where @xmath2 is a constant . dark fluid is considered as the main content of the universe and the big rip singularity appears . quan... | 208 |
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