article_id stringlengths 9 15 | abstract_text stringlengths 390 2.07k | token_count int64 100 300 |
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1510.08597 | ultra - luminous x - ray sources are usually believed to be black holes with mass about @xmath0 . however , the recent discovery of nustar j095551 + 6940.8 in m82 by bachetti et al . shows that it holds the spin period @xmath1 and period derivative @xmath2 , which provides a strong evidence that some ultra - luminous x... | 243 |
1401.2835 | associated to each ultrafilter @xmath0 on @xmath1 and each map @xmath2 is a dedekind cut in the ultrapower @xmath3 . blass has characterized , under ch , the cuts obtainable when @xmath0 is taken to be either a p - point ultrafilter , a weakly - ramsey ultrafilter or a ramsey ultrafilter . dobrinen and todorcevic have ... | 245 |
1510.02357 | we present a theoretical study of the dynamical spin susceptibility for the intriguing fe - based superconductor fese , based on a tight - binding model developed to account for the temperature - dependent band structure in this system . the model allows for orbital ordering in the @xmath0 channel below the structural ... | 195 |
math0305155 | we describe an essential improvement of our recent algorithm for computing cohomology of lie ( super)algebra based on partition of the whole cochain complex into minimal subcomplexes . we replace the arithmetic of rational numbers or integers by a much cheaper arithmetic of a modular field and use the inequality betwee... | 158 |
1501.03682 | we study the approximation properties of the class of nonstationary refinable ripplets introduced in @xcite . these functions are solution of an infinite set of nonstationary refinable equations and are defined through sequences of scaling masks that have an explicit expression . moreover , they are variation - diminis... | 228 |
1001.4036 | _ galex _ observations of comet 9p / tempel 1 using the near ultraviolet ( nuv ) objective grism were made before , during and after the deep impact event that occurred on 2005 july 4 at 05:52:03 ut when a 370 kg nasa spacecraft was maneuvered into the path of the comet . the nuv channel provides usable spectral inform... | 245 |
1606.02620 | there have recently been several reports of apparently periodic variations in the light curves of quasars , e.g. pg 1302@xmath0102 by @xcite . any quasar showing periodic oscillations in brightness would be a strong candidate to be a close binary supermassive black hole and , in turn , a candidate for gravitational wav... | 245 |
0912.3859 | a perturbation spin - wave theory for the quantum heisenberg antiferromagnets on a square lattice is proposed to calculate the uniform static magnetic susceptibility at finite temperatures , where a divergence in the previous theories due to an artificial phase transition has been removed . to the zeroth order , the ma... | 123 |
astro-ph9911049 | we will present the results of a nicmos h - band imaging survey of a small sample of @xmath02 3 radio - quiet quasars . we have resolved extension in at least 4 of 5 objects and find evidence for a wide range in the morphologies and magnitudes of these hosts . the host galaxy luminosities range from sub - l@xmath1 to a... | 150 |
0806.1271 | suppose that wirelessly communicating sensors are placed in a regular fashion on the points of a lattice . common communication protocols allow the sensors to broadcast messages at arbitrary times , which can lead to problems should two sensors broadcast at the same time . it is shown that one can exploit a tiling of t... | 109 |
gr-qc9710084 | we apply the causal interpretation of quantum mechanics to homogeneous and isotropic quantum cosmology where the sources of the gravitational field are either dust or radiation perfect fluids . we find non - singular quantum trajectories which tends to the classical one when the scale factor becomes much larger then th... | 125 |
physics0512002 | integral field spectroscopy ( ifs ) provides a spectrum simultaneously for each spatial sample of an extended , two - dimensional field . it consists of an integral field unit ( ifu ) which slices and re - arranges the initial field along the entrance slit of a spectrograph . this article presents an original design of... | 160 |
0807.0015 | a common goal in an experimental physics analysis is to extract information from a reaction with multi - dimensional kinematics . the preferred method for such a task is typically the unbinned maximum likelihood method . in fits using this method , the likelihood is a goodness - of - fit quantity in that it effectively... | 124 |
0804.2723 | we performed a neutron - scattering experiment to investigate the effect of distortion of cuo@xmath0 planes on the low - energy spin correlation of la@xmath1sr@xmath2ce@xmath3cuo@xmath4 ( lscco ) . due to the carrier - compensation effect by co - doping of sr and ce , lscco has a smaller orthorhombic lattice distortion... | 200 |
physics0109023 | this is the second paper in a series on light scattering from optically anisotropic scatterers embedded in an isotropic medium . the apparently complex t - matrix theory involving mixing of angular momentum components turns out to be an efficient approach to calculating scattering in these systems . we present prelimin... | 170 |
physics0509149 | an isotropic three - dimentional perfect lens based on cubic meshes of interconnected transmission lines and bulk loads is proposed . the lens is formed by a slab of a loaded mesh placed in between two similar unloaded meshes . the dispersion equations and the characteristic impedances of the eigenwaves in the meshes a... | 145 |
1609.07315 | following talagrand s concentration results for permutations picked uniformly at random from a symmetric group @xcite , luczak and mcdiarmid have generalized it to more general groups @xmath0 of permutations which act suitably ` locally ' . here we extend their results by setting transport - entropy inequalities on the... | 142 |
astro-ph0401494 | the expected performance of gaia satellite on eclipsing binaries is reviewed on the basis of ( @xmath0 ) combined hipparcos and ground - based observations mimicking gaia data harvest , and ( @xmath1 ) accurate simulations using the latest instrument model . it is found that for a large majority of the 16000 sb2 eclips... | 180 |
1610.08358 | light - cone qcd sum rules to leading order in qcd are used to investigate the tensor form factors of the @xmath0 , @xmath1 and @xmath2 transitions in the range @xmath3 @xmath4 . the das of @xmath5 , @xmath6 and @xmath7 baryon have been calculated without higher - order terms . then , studies including higher - order c... | 112 |
0912.1968 | in this article we compare the mean - square stability properties of the @xmath0-maruyama and @xmath0-milstein method that are used to solve stochastic differential equations . for the linear stability analysis , we propose an extension of the standard geometric brownian motion as a test equation and consider a scalar ... | 242 |
astro-ph0307312 | we describe deva , a multistep ap3m - like - sph code particularly designed to study galaxy formation and evolution in connection with the global cosmological model . this code uses a formulation of sph equations which ensures both energy and entropy conservation by including the so - called @xmath0 terms . particular ... | 193 |
1403.6764 | this paper investigates the stability of switched linear systems whose switching signal is modeled as a stochastic process called a regenerative process . we show that the mean stability of such a switched system is characterized by the spectral radius of a matrix . the matrix is obtained by taking the expectation of t... | 119 |
astro-ph0106237 | results of granat / art - p observations of three x - ray pulsars in non - pulsing states are presented : 1 ) a statistically significant non - pulsing flux with a simple power - law spectrum was detected during the `` off''- state of her x-1 ; 2 ) a significant ( 13 @xmath0 ) non - pulsing flux with a strong iron emis... | 137 |
physics0307018 | we propose in this article an unambiguous definition of the local density of electromagnetic states ( ldos ) in a vacuum near an interface in an equilibrium situation at temperature @xmath0 . we show that the ldos depends only on the electric field green function of the system but does not reduce in general to the trac... | 198 |
1108.5683 | this paper summarizes the main results of our recent study of the non - blazhko rr lyrae stars observed with the _ kepler _ space telescope . these stars offer the opportunity for studying the stability of the pulsations of rr lyrae stars and for providing a reference against which the blazhko rr lyrae stars can be com... | 199 |
0712.4327 | we studied a constraint on the primordial helium abundance @xmath0 from current and future observations of cmb . using the currently available data from wmap , acbar , cbi and boomerang , we obtained the constraint as @xmath1 at 68% c.l . we also provide a forecast for the planck experiment using the markov chain monte... | 175 |
1404.2378 | the present study seeks to investigate mathematical structures of a multi - frequency subspace migration weighted by the natural logarithmic function for imaging of thin electromagnetic inhomogeneities from measured far - field pattern . to this end , we designed the algorithm and calculated the indefinite integration ... | 191 |
1608.01564 | we introduce a family of discrete determinantal point processes related to orthogonal polynomials on the real line , with correlation kernels defined via spectral projections for the associated jacobi matrices . for classical weights , we show how such ensembles arise as limits of various hypergeometric orthogonal poly... | 179 |
1602.03103 | geometric approaches to network analysis combine simply defined models with great descriptive power . in this work we provide a method for embedding directed acyclic graphs into minkowski spacetime using multidimensional scaling ( mds).first we generalise the classical mds algorithm , defined only for metrics with a eu... | 132 |
cond-mat0508725 | we have performed self - consistent calculations of the dynamical response of the ( 111 ) surface of the noble metals cu , ag , and au . our results indicate that the partially occupied surface - state band in these materials yields the existence of acoustic surface plasmons with linear dispersion at small wave vectors... | 145 |
physics0603124 | recently , multiple time scale characteristics of heart dynamics have received much attention for distinguishing healthy and pathologic cardiac systems . despite structural peculiarities of the fetal cardiovascular system , the fetal heart rate(fhr ) displays multiple time scale characteristics similar to the adult hea... | 212 |
0709.0616 | we construct the classification scheme for all possible evolution scenarios and find the corresponding global geometries for dynamics of a thin spherical vacuum shell in the schwarzschild - desitter metric . this configuration is suitable for the modelling of vacuum bubbles arising during cosmological phase transitions... | 102 |
hep-ph0502026 | we show that in theories where neutrino masses arise from type i seesaw formula with three right handed neutrinos and where large atmospheric mixing angle owes its origin to an approximate leptonic @xmath0 interchange symmetry , the primordial lepton asymmetry of the universe , @xmath1 can be expressed in a simple form... | 134 |
1701.04904 | in this paper we construct a new type of cavity array , in each cavity of which multiple two - level atoms interact with two independent photon modes . this system can be totally governed by a two - mode dicke - lattice model , which includes all of the counter - rotating terms and therefore works well in the ultrastro... | 235 |
1507.08352 | we present perturbative analytical results of the landau level quasienergy spectrum , autocorrelation function and out of plane pseudospin polarization for a single graphene sheet subject to intense circularly polarized terahertz radiation . for the quasienergy spectrum , we find a striking non trivial level - dependen... | 191 |
1311.1685 | it was proposed by ryu and takayanagi that the entanglement entropy in conformal field theory ( cft ) is related through the ads / cft correspondence to the area of a minimal surface in the bulk . we apply this holographic geometrical method of calculating the entanglement entropy to study the vacuum case of a cft whic... | 205 |
1503.02958 | the accuracy of the numerical solution of a fractional differential equation depends on the differentiability class of the solution . the derivatives of the solutions of fractional differential equations often have a singularity at the initial point , which may result in a lower accuracy of the numerical solutions . we... | 115 |
1010.3672 | we calculate the spectra of produced thermal photons in au+au collisions taking into account the nonequilibrium contribution to photon production due to finite shear viscosity . the evolution of the fireball is modeled by second - order as well as by divergence - type 2 + 1 dissipative hydrodynamics , both with an idea... | 171 |
1012.0003 | the coma cluster of galaxies hosts the brightest radio halo known and has therefore been the target of numerous searches for associated inverse compton ( ic ) emission , particularly at hard x - ray energies where the ic signal must eventually dominate over thermal emission . the most recent search with the hard x - ra... | 283 |
hep-ph0307184 | using the concept of collision time ( time delay ) introduced by eisenbud and wigner and its connection to on - shell intermediate unstable states , we study mesonic resonances in @xmath0 and @xmath1 scattering . the time - delay method proves its usefulness by revealing the spectrum of the well - known @xmath2 - and @... | 175 |
0704.2063 | we calculate the very high energy ( sub - gev to tev ) inverse compton emission of grb afterglows . we argue that this emission provides a powerful test of the currently accepted afterglow model . we focus on two processes : synchrotron self - compton ( ssc ) emission within the afterglow blast wave , and external inve... | 153 |
astro-ph0507583 | we derive constraints on cosmological parameters using the power spectrum of galaxy clustering measured from the final two - degree field galaxy redshift survey ( 2dfgrs ) and a compilation of measurements of the temperature power spectrum and temperature - polarization cross - correlation of the cosmic microwave backg... | 267 |
1010.2858 | we present a detailed numerical study of the electronic transport properties of bilayer and trilayer graphene within a framework of single - electron tight - binding model . various types of disorder are considered , such as resonant ( hydrogen ) impurities , vacancies , short- or long - range gaussian random potential... | 197 |
0710.2220 | we investigate the phase diagram of a two - species bose - hubbard model including a conversion term , by which two particles from the first species can be converted into one particle of the second species , and vice - versa . the model can be related to ultracold atom experiments in which a feshbach resonance produces... | 165 |
1410.3132 | binarity and mass transfer appear to play a key role in the shaping and , possibly , formation of planetary nebulae ( pne ) , thereby explaining the large fraction of axisymmetric morphologies . i present the binary hypothesis for pne and its current status . recent discoveries have led to a quadrupling of the number o... | 121 |
astro-ph0505359 | we present new self - consistent atmosphere models for transiting planets tres-1 and hd209458b . the planets were recently observed with the _ spitzer space telescope _ in bands centered on 4.5 and 8.0 @xmath0 m , for tres-1 , and 24 @xmath0 m , for hd209458b . we find that standard solar metallicity models fit the obs... | 167 |
1306.4217 | the bialas - bzdak model of elastic proton - proton scattering is generalized to the case when the real part of the parton - parton level forward scattering amplitude is non - vanishing . such a generalization enables the model to describe well the dip region of the differential cross - section of elastic scattering at... | 199 |
astro-ph9906018 | when @xmath0 , where @xmath1 is the de broglie wavelength and @xmath2 , the distance of closest approach of thermal electrons , a classical analysis of the energy of a plasma can be made . in all the classical analysis made until now , it was assumed that the frequency of the fluctuations @xmath3 ( @xmath4 ) . using th... | 114 |
1109.2634 | in this study , we present long term photometric variations of the close binary system . modelling of the system shows that the primary is filling roche lobe and the secondary of the system is almost filling its roche lobe . the physical parameters of the system are @xmath0 , @xmath1 , @xmath2 , @xmath3 , @xmath4 , @xm... | 150 |
nucl-th9610021 | the ( @xmath0 ) model in mean - field approximation where the meson fields are treated classically , describes much of observed nuclear structure and has been employed to describe the nuclear equation of state up to the quark - gluon phase transition . the acceleration of the meson sources , for example , in relativist... | 205 |
cond-mat0207703 | the configurational and melting properties of large two - dimensional ( 2d ) clusters of charged classical particles interacting with each other via the coulomb potential are investigated through the monte carlo simulation technique . the particles are confined by a harmonic potential . for a large number of particles ... | 224 |
0804.0052 | we show that the weibel - mediated collisionless shocks are driven at non - relativistic propagation speed ( @xmath0 ) in unmagnetized electron - ion plasmas by performing two - dimensional particle - in - cell simulations . it is shown that the profiles of the number density and the mean velocity in the vicinity of th... | 172 |
cond-mat9907046 | the electron - electron relaxation in impure two - dimensional superconductors is studied . all channels of the electron - electron interaction classified in the nambu representation are taken into account . it is shown that the recombination relaxation rate originates from quasipartical processes associated with fluct... | 165 |
1606.03431 | we study modules for the divided power algebra @xmath0 in a single variable over a commutative noetherian ring @xmath1 . our first result states that @xmath0 is a coherent ring . in fact , we show that there is a theory of grbner bases for finitely generated ideals , and so computations with finitely presented @xmath0-... | 162 |
hep-ph0506059 | an equation of state of neutron star matter with strange baryons has been obtained . the effects of the strength of hyperon - hyperon interactions on the equations of state constructed for the chosen parameter sets have been analyzed . numerous neutron star models show that the appearance of hyperons is connected with ... | 102 |
astro-ph9911513 | we have investigated an influence of the r - mode instability on hypercritically accreting ( @xmath0 ) neutron stars in close binary systems during their common envelope phases based on the scenario proposed by bethe et al . . on the one hand neutron stars are heated by the accreted matter at the stellar surface , but ... | 277 |
astro-ph0511165 | we analyze the dynamical expansion of the h ii region , photodissociation region , and the swept - up shell , solving the uv- and fuv - radiative transfer , the thermal and chemical processes in the time - dependent hydrodynamics code . following our previous paper , we investigate the time evolutions with various ambi... | 269 |
cond-mat0509599 | we present the detailed theoretical study of a heterostructure comprising of two coupled ferromagnetic superconducting layers . our model may be also applicable to the layered superconductors with alternating interlayer coupling in a parallel magnetic field . it is demonstrated that such systems exhibit a competition b... | 142 |
1606.02164 | in this paper we demonstrate that with vacuum @xmath0 gravity it is possible to describe the unification of late and early - time acceleration eras with the radiation and matter domination era . the hubble rate of the unified evolution contains two mild singularities , so called type iv singularities , and the evolutio... | 190 |
cond-mat0211186 | one approach to the understanding of fusion in cells and model membranes involves stalk formation and expansion of the hemifusion diaphragm . we predict theoretically the initiation of hemifusion by stalk expansion and the dynamics of mesoscopic hemifusion diaphragm expansion in the light of recent experiments and theo... | 133 |
astro-ph9904179 | quantitative morphological and structural parameters are estimated for galaxies detected in hst observations of wfpc2 survey fields . a modeling approach based on maximum likelihood has been developed for two - dimensional decomposition of faint under - sampled galaxy images into components of disk and bulge morphology... | 177 |
hep-ph0211325 | weakly interacting massive particles ( wimps ) are among the favored candidates for cold dark matter in the universe . the phenomenology of supersymmetric wimps has been quite developed during recent years . however , there are other possibilities which have not been discussed as much . one example is a right - handed ... | 211 |
1503.06890 | we propose an alternative evaluation of the long - distance weak annihilation ( wa , also called one - photon exchange in this paper ) contribution to the rare semileptonic @xmath0 ( @xmath1 ) decays . this hadronic description at low energies is matched at intermediate energies to its short - distance counterpart in t... | 193 |
cond-mat0211252 | we consider conservative quantum evolutions possibly interrupted by macroscopic measurements . when started in a nonequilibrium state , the resulting path - space measure is not time - reversal invariant and the weight of time - reversal breaking equals the exponential of the entropy production . the mean entropy produ... | 114 |
cond-mat0504679 | we report the parameter - free , density functional theory calculations of interatomic exchange interactions and curie temperatures of half - metallic ferrimagnetic full heusler alloys mn@xmath0vz ( z = al , ge ) . to calculate the interatomic exchange interactions we employ the frozen - magnon approach . the curie tem... | 187 |
0902.1807 | previously published data on inclusive neutral and charged current @xmath0 and @xmath1 deep inelastic scattering from hera have been combined . the new , model - independent method of combining the measured cross sections takes full account of correlated systematics in a coherent way , leading to significantly reduced ... | 141 |
1201.3975 | monte carlo sampling techniques have been proposed as a strategy to reduce the computational cost of contractions in tensor network approaches to solving many - body systems . here we put forward a variational monte carlo approach for the multi - scale entanglement renormalization ansatz ( mera ) , which is a unitary t... | 180 |
quant-ph9708008 | we describe how two vibrational degrees of freedom of a single trapped ion can be coupled through the action of suitably - chosen laser excitation . we concentrate on a two - dimensional ion trap with dissimilar vibrational frequencies in the @xmath0- and @xmath1-directions of motion , and derive from first principles ... | 115 |
cond-mat0206580 | using a plane wave pseudopotential approach to density functional theory we investigate the electron localization length in various oxides . for this purpose , we first set up a theory of the band - by - band decomposition of this quantity , more complex than the decomposition of the spontaneous polarization ( a relate... | 124 |
1305.5471 | we assemble a statistical set of global mass models for @xmath0 2,000 nearly spherical sloan digital sky survey ( sdss ) galaxies at a mean redshift of @xmath1 based on their aperture velocity dispersions and newly derived luminosity profiles in conjunction with published velocity dispersion profiles and empirical prop... | 253 |
1312.1612 | in recent years quantum monte carlo techniques provided to be a valuable tool to study strongly interacting fermi gases at zero temperature . we have used qmc methods to investigate several properties of the two - components fermi gas at unitarity and in the bcs - bec crossover , both with equal and unequal masses corr... | 108 |
1506.01850 | we discuss the sensitivity of the high - scale susy at @xmath0-@xmath1 tev in @xmath2 , @xmath3 , @xmath4 and @xmath5 meson systems together with the neutron edm and the mercury edm . in order to estimate the contribution of the squark flavor mixing to these fcncs , we calculate the squark mass spectrum , which is cons... | 227 |
astro-ph0009157 | high - resolution , high signal - to - noise spectral data are presented for four young b - type stars lying towards the galactic centre . determination of their atmospheric parameters from their absorption line profiles , and @xmath0 photometric measurement of the continua indicate that they are massive objects lying ... | 240 |
astro-ph9610194 | we present internal velocity dispersion determinations from high - resolution spectroscopic observations of a sample of nine globular clusters in m31 . comprehensive numerical simulations are used to show that the typical uncertainty of our velocity dispersion measurements is @xmath05% . using these new velocity disper... | 176 |
1210.7675 | we consider the general landau - lifshitz - gilbert ( llg ) dynamical theory underlying the magnetization switching rates of a thin film uniaxial magnet subject to spin - torque effects and thermal fluctuations ( thermal noise ) . after discussing the various dynamical regimes governing the switching phenomena , we pre... | 202 |
0803.4219 | we present a large sample of 501 radio - selected bl lac candidates from the combination of the sloan digital sky survey ( sdss ) data release 5 optical spectroscopy and from the faint images of the radio sky at twenty - centimeters ( first ) radio survey ; this is one of the largest bl lac samples yet assembled , and ... | 298 |
1111.4452 | given a subset @xmath0 of the unit euclidean sphere , we estimate the minimal number @xmath1 of hyperplanes that generate a uniform tessellation of @xmath0 , in the sense that the fraction of the hyperplanes separating any pair @xmath2 is nearly proportional to the euclidean distance between @xmath3 and @xmath4 . rando... | 162 |
1510.06645 | jupiter - family comet 15p / finlay has been reportedly quiet in activity for over a century but has harbored two outbursts during its 2014/2015 perihelion passage . here we present an analysis of these two outbursts using a set of cometary observations . the outbursts took place between 2014 dec . 15.416.0 ut and 2015... | 264 |
0806.4964 | we study a toy model for a superconductor on a bipartite lattice , where intrinsic pairing inhomogeneity is produced by two different coupling constants on the sublattices . the simplicity of the model allows for analytic solutions and tests of the consequences of atomic - scale variations in pairing interactions which... | 137 |
1108.3559 | we study the thermal stability of the periodic ( p ) and quasi - periodic ( q ) precessional modes of the nanoparticle magnetic moment induced by a rotating magnetic field . an analytical method for determining the lifetime of the p mode in the case of high anisotropy barrier and small amplitudes of the rotating field ... | 133 |
astro-ph9706285 | we extended to the r and i bands the light curve coverage for 8 cepheids already studied in b and v by capaccioli [ aj , 103 , 1151 ( 1992 ) ] . sixteen additional cepheid candidates have been identified and preliminary periods are proposed . the new cepheids allow the period - luminosity relation to be extended one ma... | 215 |
astro-ph0011078 | optical and x - ray studies have established the prevalence of significant substructure in clusters of galaxies , indicating that clusters are young systems , and that recent major mergers have occurred in many clusters . numerical simulations show that sub - cluster merging will result in significant tidal forces on d... | 148 |
cond-mat0603013 | using a fourier approach we offer a general solution to calculations of slip velocity within the circuit description of the electro - hydrodynamics in a binary electrolyte confined by a plane surface with a modulated surface potential . we consider the case with a spatially constant intrinsic surface capacitance where ... | 217 |
astro-ph0603443 | we have produced an atlas of spitzer infrared spectrograph ( irs ) spectra of mass - losing , evolved stars in the large magellanic cloud . these stars were selected to have high mass - loss rates and so contribute significantly to the return of processed materials to the ism . our high - quality spectra enable the det... | 184 |
cond-mat0211690 | we investigate the dynamics of interacting electrons confined to two types of quantum dot system , when driven by an external ac field . we first consider a system of two electrons confined to a pair of coupled quantum dots @xcite by using an effective two - site model of hubbard - type . numerically integrating the sc... | 271 |
1502.07592 | we investigate the survival of circularly polarized light in random scattering media . the surprising persistence of this form of polarization has a known dependence on the size and refractive index of scattering particles , however a general description regarding polydisperse media is lacking . through analysis of mie... | 104 |
1302.6717 | we introduce the concept of back - reaction in relativistic cosmological modeling . roughly speaking , this can be thought of as the difference between the large - scale behaviour of an inhomogeneous cosmological solution of einstein s equations , and a homogeneous and isotropic solution that is a best - fit to either ... | 131 |
1509.08730 | we study critical phenomena in the gravitational collapse of a radiation fluid . we perform numerical simulations in both spherical symmetry and axisymmetry , and observe critical scaling in both supercritical evolutions , which lead to the formation of a black hole , and subcritical evolutions , in which case the flui... | 151 |
cond-mat0612011 | we introduce a new class of sine - gordon models , for which the interaction term is present in a region different from the domain over which the quadratic part is defined . we develop a _ nonperturbative _ approach for calculating partition functions of such models , which relies on mapping them to statistical propert... | 110 |
1209.1395 | we present adaptive optics assisted , spatially resolved spectroscopy of a sample of nine h@xmath0-selected galaxies at @xmath1=0.842.23 drawn from the hizels narrow - band survey . these galaxies have star - formation rates of 127m@xmath2yr@xmath3 and are therefore representative of the typical high - redshift star - ... | 277 |
astro-ph0409345 | new observations of 16 dwarf elliptical galaxies in the virgo cluster indicate that at least seven des have significant velocity gradients along their optical major axis , with typical rotation amplitudes of 20 - 30 km s@xmath0 . of the remaining nine galaxies in this sample , 6 have velocity gradients less than 20 km ... | 256 |
nucl-th0003059 | the structure of the second @xmath0 state of @xmath1be is investigated using a microscopic @xmath2+@xmath2+@xmath3+@xmath3 model based on the molecular - orbit ( mo ) model . the second @xmath0 state , which has dominantly the @xmath4 configuration , is shown to have a particularly enlarged @xmath2-@xmath2 structure . ... | 294 |
0811.4260 | we report an anticorrelation between continuum luminosity and the equivalent width ( ew ) of the h@xmath0 emission line in x - ray binary systems . the effect is evident both in a universal monotonic increase in h@xmath0 ew with time following outbursts , as systems fade , and in a comparison between measured ews and c... | 280 |
cond-mat0412136 | this is an analytical study of pinning and spontaneous vortex phase is a system consisting of a superconducting thin film pierced by a long ferromagnetic columnar defect of finite radius @xmath0 . the magnetic fields , screening currents , energy and pinning forces for this system are calculated . the interaction betwe... | 126 |
0804.2624 | in quasi - two dimensional ce(ir , rh)in@xmath0 system , it has been suggested that the phase diagram contains two distinct domes with different heavy fermion superconducting states . we here report the systematic pressure dependence of the electron transport properties in the normal state of and , which locates in fir... | 187 |
1209.5017 | we investigate ice polyamorphism in the context of the two - dimensional mercedes - benz model of water . we find a first - order phase transition between a crystalline phase and a high - density amorphous phase . furthermore we find a reversible transformation between two amorphous structures of high and low density ;... | 102 |
1202.2636 | we study the geometric and electronic structures of silicene monolayer using density functional theory based calculations . the electronic structures of silicene show that it is a semi - metal and the charge carriers in silicene behave like massless dirac - fermions since it possesses linear dispersion around dirac poi... | 131 |
hep-ph0108106 | we sketch some recent ideas proposed as the behind the puzzling experimental results on baryon - antibaryon production in @xmath0 annihilation close to threshold . the essential new point in the proposed is that it is a two - stage process , with a coherent state of pions serving as an intermediary between @xmath0 and ... | 105 |
1105.1442 | the one - dimensional ( 1d ) isotropic frustrated ferromagnetic spin-1/2 model is considered . classical and quantum effects of adding a dzyaloshinskii - moriya ( dm ) interaction on the ground state of the system is studied using the analytical cluster method and numerical lanczos technique . cluster method results , ... | 144 |
1411.7485 | we present the results of continuum and @xmath0co(32 ) and ch@xmath1oh(76 ) line observations of iras16547@xmath24247 made with the atacama large millimeter / submillimeter array ( alma ) at an angular resolution of @xmath305 . the @xmath0co(32 ) emission shows two high - velocity outflows whose driving sources are loc... | 199 |
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