article_id stringlengths 9 15 | abstract_text stringlengths 390 2.07k | token_count int64 100 300 |
|---|---|---|
1305.0417 | transfer - ionization in fast collisions between a bare ion and an atom , in which one of the atomic electrons is captured by the ion whereas another one is emitted , crucially depends on dynamic electron - electron correlations . we show that in collisions with a highly charged ion a strong field of the ion has a very... | 125 |
cond-mat9901197 | the diffusive properties in velocity fields whose small scales are parameterized by non @xmath0-correlated noise is investigated using multiscale technique . the analytical expression of the eddy diffusivity tensor is found for a @xmath1d steady shear flow and it is an increasing function of the characteristic noise de... | 152 |
1405.3468 | computational kernel of the three - dimensional variational data assimilation ( 3d - var ) problem is a linear system , generally solved by means of an iterative method . the most costly part of each iterative step is a matrix - vector product with a very large covariance matrix having gaussian correlation structure . ... | 205 |
hep-ph0004105 | we propose a simple ansatz for the three generation neutrino mass matrix @xmath0 which is motivated from an so(10 ) grand unified theory . the ansatz can be combined with information from neutrino oscillation experiments and bounds on neutrinoless double beta decay to determine the neutrino masses themselves and to rec... | 136 |
physics0507166 | in the conventional quantum mechanics ( i.e. , hermitian qm ) the adiabatic theorem for systems subjected to time periodic fields holds only for bound systems and not for open ones ( where ionization and dissociation take place ) [ d. w. hone , r. ketzmerik , and w. kohn , phys . rev . a * 56 * , 4045 ( 1997 ) ] . here... | 221 |
gr-qc0209074 | we formulate the nonlinear isovector model in a curved background , and calculate the spherically symmetric solutions for weak and strong coupling regimes . the usual belief that gravity does not have appreciable effects on the structure of solitons will be examined , in the framework of the calculated solutions , by c... | 112 |
astro-ph9712158 | the chemical structure of neutral clouds in low metallicity environments is examined with particular emphasis on the h to and c@xmath0 to co transitions . we observed near - ir , , and lines and the @xmath1co line from 30 doradus and n159/n160 in the large magellanic cloud and from dem s 16 , dem s 37 , and li - smc 36... | 237 |
1608.03551 | we study a family of graphs related to the @xmath0-cube . the middle cube graph of parameter @xmath1 is the subgraph of @xmath2 induced by the set of vertices whose binary representation has either @xmath3 or @xmath1 number of ones . the middle cube graphs can be obtained from the well - known odd graphs by doubling th... | 104 |
1503.05703 | our paper presents new methods for finding and testing of weak periodic variability of stellar objects developed for the purpose of detecting expected regular light variations of magnetic chemically peculiar ( mcp ) candidates in the large magellanic cloud . we introduce two new periodograms of the mcp star , bs cir ( ... | 170 |
1102.3784 | it is argued that whereas the shatskiy single rings produced by the gravitational inner field of a spherically symmetric wormhole and the concentric double einstein rings generated by a toroidal ringhole could not be used without some uncertainty to identify the presence of such tunnelings in the universe or the existe... | 179 |
1403.6970 | we describe dynamics of spin and valley transitions driven by alternating electric fields in quantum dots defined electrostatically within semiconducting carbon nanotubes ( cnt ) . we use the tight - binding approach to describe the states localized within a quantum dot taking into account the circumferential spin - or... | 185 |
cond-mat0605604 | the bcs - like pairing in ultracold fermionic atomic ( @xmath0 ) gases is studied in the model of `` isotopic - spin '' pairing proposed in 1991 ku - hof - ssc . this model assumes a mismatch ( @xmath1 ) in chemical potentials of pairing fermionic atoms . it is shown that a @xmath2-josephson junction can be realized in... | 196 |
1308.5678 | the transmission dynamics of some infectious diseases is related to the contact structure between individuals in a network . we used five algorithms to generate contact networks with different topological structure but with the same scale - free degree distribution . we simulated the spread of acute and chronic infecti... | 256 |
1403.8066 | we present results about the effect of the use of a stiffer equation of state , namely the ideal - fluid @xmath0 ones , on the dynamical bar - mode instability in rapidly rotating polytropic models of neutron stars in full general relativity . we determine the change on the critical value of the instability parameter @... | 163 |
1103.1419 | we study the self - gravitational effect on the equation of state ( eos ) of bose and fermi gases in thermal equilibrium at the end of reheating , the period after quark - hadron transition and before big bang nucleosynthesis ( bbn ) . after introducing new grand canonical partition functions based on the work of uhlen... | 162 |
1405.7564 | we calculate the free energy , entropy and pressure of the quark gluon plasma ( qgp ) at finite temperature and density with a given fraction of spin - up and spin - down quarks using a mit bag model with corrections up to @xmath0 . the expressions for the specific heat and the spin susceptibility are derived in terms ... | 130 |
1011.0694 | is it possible to trap a quantum particle in an open geometry ? in this work we deal with the boundary value problem of the stationary schroedinger ( or helmholtz ) equation within a waveguide with straight segments and a rectangular bending . the problem can be reduced to a one dimensional matrix schroedinger equation... | 157 |
1403.1176 | for a projective curve @xmath0 and the canonical divisor @xmath1 on @xmath0 , it is classically known that the canonical ring @xmath2 is finitely generated in degree at most three . in this article , we study whether analogous statements hold for finite graphs and tropical curves . for any finite graph @xmath3 , we sho... | 132 |
astro-ph0403082 | we discuss the propagation of electromagnetic waves on a rectangular lattice of polarizable point dipoles . for wavelengths long compared to the lattice spacing , we obtain the dispersion relation in terms of the lattice spacing and the dipole polarizabilities . we also obtain the dipole polarizabilities required for t... | 112 |
0805.1318 | necessary and sufficient conditions for bipartite entanglement are derived , which apply to arbitrary hilbert spaces . motivated by the concept of witnesses , optimized entanglement inequalities are formulated solely in terms of arbitrary hermitian operators , which makes them useful for applications in experiments . t... | 100 |
1006.1325 | let @xmath0 be an irreducible shift of finite type ( sft ) of positive entropy , and let @xmath1 be its set of words of length @xmath2 . define a random subset @xmath3 of @xmath1 by independently choosing each word from @xmath1 with some probability @xmath4 . let @xmath5 be the ( random ) sft built from the set @xmath3... | 170 |
cond-mat0402343 | many molecular theories of nematic liquid crystals consider the constituent molecules as cylindrically symmetric . in many cases , this approximation may be useful . however the molecules of real nematics have lower symmetry . therefore a theory was developed ( mol . phys . 30 ( 1975 ) 1345 ) for an ensemble of such pa... | 180 |
0712.1239 | we have studied the abundance of oxygen in the igm by analyzing , , , and pixel optical depths derived from a set of high - quality vlt and keck spectra of 17 qsos at @xmath0 . comparing ratios @xmath1 to those in realistic , synthetic spectra drawn from a hydrodynamical simulation and comparing to existing constraints... | 241 |
1501.04241 | this paper establishes the continuity of the path delay operators for _ dynamic network loading _ ( dnl ) problems based on the lighthill - whitham - richards model , which explicitly capture vehicle spillback . the dnl describes and predicts the spatial - temporal evolution of traffic flow and congestion on a network ... | 208 |
astro-ph9510060 | we demonstrate how measuring orbital period derivatives can lead to more accurate distance estimates and transverse velocities for some nearby binary pulsars . in many cases this method will estimate distances more accurately than is possible by annual parallax , as the relative error decreases as @xmath0 . unfortunate... | 112 |
cond-mat0107253 | we consider interacting spinless fermions in one dimension embedded in self - similar quasiperiodic potentials . we examine generalizations of the fibonacci potential known as precious mean potentials . using a bosonization technique and a renormalization group analysis , we study the low - energy physics of the system... | 159 |
astro-ph0109252 | we study the luminosity function and the correlation function of about 1200 z@xmath04 lyman break galaxies ( lbgs ) with @xmath1 that are photometrically selected from deep @xmath2 imaging data of a 618 arcmin@xmath3 area in the subaru / xmm - newton deep field taken with subaru prime focus camera . the contamination a... | 256 |
astro-ph9909441 | results of two years of continuous monitoring of flux density variations at 8.3 and 2.3 ghz of the galactic center super - massive black hole candidate sgr a * are reported . the average rms modulation indices are 6% and 2.5% at 8.3 & 2.3 ghz respectively . there is a certain degree of correlation between both frequenc... | 120 |
cond-mat9904402 | raman spectra are reported for ba doped fullerides , @xmath0 ( x=3 , 4 , and 6 ) . the lowest frequency @xmath1 modes split into five components for @xmath2 and @xmath3 even at room temperature , allowing us a quantitative analysis based on the electron - phonon coupling theory . for the superconducting @xmath2 , the d... | 165 |
1405.4264 | we investigate the evolution of the raman spectrum of defected graphene as a function of doping . polymer electrolyte gating allows us to move the fermi level up to 0.7ev , as monitored by _ in - situ _ hall - effect measurements . for a given number of defects , the intensities of the d and d peaks decrease with dopin... | 109 |
1511.01450 | we numerically construct the bps and non - bps wavefunctions of an @xmath0 quiver quantum mechanics with two abelian nodes and a single arrow . this model captures the dynamics of a pair of wrapped d - branes interacting via a single light string mode . a dimensionless parameter @xmath1 , which is inversely proportiona... | 252 |
astro-ph0611129 | we carry out a model independent study of resonant photon scattering off dark matter ( dm ) particles . the dm particle @xmath0 can feature an electric or magnetic transition dipole moment which couples it with photons and a heavier neutral particle @xmath1 . resonant photon scattering then takes place at a special ene... | 196 |
nucl-th0401031 | we investigate hadron production and transverse hadron spectra in nucleus - nucleus collisions from 2 @xmath0gev to 21.3 @xmath0tev within two independent transport approaches ( urqmd and hsd ) based on quark , diquark , string and hadronic degrees of freedom . the enhancement of pion production in central au+au ( pb+p... | 253 |
hep-ex0611051 | high - statistics data on near - horizontal muons collected with russian - italian coordinate detector decor are analyzed . precise measurements of muon angular distributions in zenith angle interval from 60@xmath0 to 90@xmath0 have been performed . in total , more than 20 million muons are selected . dependences of th... | 111 |
physics0111136 | the reference rdbms for bessy ii has been set up with a device oriented data model . this has proven adequate for e.g. template based rtdb generation , modelling etc . but since assigned i / o channels have been stored outside the database ( a ) numerous specific conditions had to be maintained within the scripts gener... | 121 |
1202.5059 | we examine the statics and dynamics of particles with repulsive yukawa interactions in the presence of a two - dimensional triangular substrate for fillings of up to twelve particles per potential minimum . we term the ordered states yukawa cluster crystals and show that they are distinct from the colloidal molecular c... | 278 |
1305.6965 | a novel protocol , measurement - device - independent quantum key distribution ( mdi - qkd ) , removes all attacks from the detection system , the most vulnerable part in qkd implementations . in this paper , we present an analysis for practical aspects of mdi - qkd . to evaluate its performance , we study various erro... | 220 |
1703.08811 | we study the single site dynamics in stochastic particle systems of misanthrope type with bounded rates on a complete graph . in the limit of diverging system size we establish convergence to a markovian non - linear birth death chain , described by a mean - field equation known also from exchange - driven growth proce... | 158 |
1407.3376 | in this paper , we show that the time evolution of the bloch vector governed by the thermal jaynes - cummings model is equivalent to a compressible inviscid flow with zero vorticity . because of its quasiperiodicity , the dynamics of the bloch vector includes countably infinite angular momenta as integrals of motion . ... | 123 |
quant-ph0108037 | we investigate the problem of determining the parameters that describe a quantum channel . it is assumed that the users of the channel have at best only partial knowledge of it and make use of a finite amount of resources to estimate it . we discuss simple protocols for the estimation of the parameters of several class... | 158 |
astro-ph9705113 | any viable cosmological model must produce enough structure at early epochs to explain the amount of gas associated with high - redshift systems . we study the evolution of systems at redshifts @xmath0 in cold dark matter ( cdm ) and cold+hot dark matter ( cdm+hdm ) models using both @xmath1-body and hydrodynamic simul... | 214 |
1406.5733 | the production of all identified hadrons at the cern large hadron collider ( lhc ) is studied with emphasis on the @xmath0 distributions up to 20 gev / c in central collisions . in the framework of the recombination model we find that the shower partons ( due to the fragmentation of semihard partons ) play an important... | 229 |
1308.6478 | we present the first detection of n@xmath0h@xmath1 towards a low - mass protostellar outflow , namely the l1157-b1 shock , at @xmath2 0.1 pc from the protostellar cocoon . the detection was obtained with the iram 30-m antenna . we observed emission at 93 ghz due to the @xmath3 = 10 hyperfine lines . the analysis of the... | 213 |
cond-mat0408243 | basis set convergence of the hartree - fock and the correlation energy is examined for the hydrogen bonded _ infinite _ bent chains ( hf)@xmath0 and ( hcl)@xmath0 . we employ series of correlation consistent basis sets up to quintuple @xmath1 quality together with a coupled cluster method ( ccsd ) to describe electron ... | 159 |
1512.01599 | an established phenomenology and theoretical interpretation of @xmath0-@xmath0 collision data at lower collision energies should provide a reference for @xmath0-@xmath0 and other collision systems at higher energies , against which claims of novel physics may be tested . the description of @xmath0-@xmath0 collisions at... | 196 |
quant-ph0208175 | it is shown how any lindbladian evolution with selfadjoint lindblad operators , either markovian or nonmarkovian , can be understood as an averaged random unitary evolution . both mathematical and physical consequences are analyzed . first a simple and fast method to solve this kind of master equations is suggested and... | 131 |
0901.4570 | we study the andreev edge states with different pairing symmetries and boundary topologies on semi - infinite triangular lattice of na@xmath0coo@xmath1@xmath2h@xmath1o . a general mapping from the two dimensional lattice to the one dimensional tight - binding model is developed . it is shown that the phase diagram of t... | 121 |
1007.1147 | a simple effective model for a description of magnetically ordered insulators is analysed . the tight binding hamiltonian consists of the effective on - site interaction ( @xmath0 ) and intersite magnetic exchange interactions ( @xmath1 , @xmath2 ) between nearest - neighbours . the phase diagrams of this model have be... | 124 |
1506.00297 | we have analyzed numerically the localization length of light @xmath0 for nearly periodic arrangements of homogeneous stacks ( formed exclusively by right - handed materials ) and mixed stacks ( with alternating right and left - handed metamaterials ) . layers with index of refraction @xmath1 and thickness @xmath2 alte... | 235 |
1401.3108 | motivated by the physical relevance of a spectral singularity of interacting many - particle system , we explore the dynamics of two bosons as well as fermions in one - dimensional system with imaginary delta interaction strength . based on the exact solution , it shows that the two - particle collision leads to amplit... | 123 |
1105.0333 | controlled generation of entangled states of two quantum bits is a fundamental step toward the implementation of a quantum information processor . in nano - devices this operation is counteracted by the solid - state environment , characterized by broadband and non - monotonic power spectrum often @xmath0 at low freque... | 199 |
0902.1712 | pour lastrophysicien qui aborde le puzzle de la matire noire , celle - ci apparat sous deux aspects diffrents : dune part en cosmologie , cest - - dire trs grandes chelles , o elle semble tre forme dun bain de particules , et dautre part lchelle des galaxies , o elle est dcrite par un ensemble de phnomnes trs particuli... | 125 |
astro-ph0310298 | we present results from the photometric and spectroscopic identification of 122 x - ray sources recently discovered by xmm - newton in the 2 - 10 kev band ( the hellas2xmm 1df sample ) . one of the most interesting results ( which is found also in deeper sourveys ) is that @xmath0 of the sources have an x - ray to opti... | 200 |
1610.00666 | double parton scattering ( dps ) is studied at the example of @xmath0 pair - production in the lhcb and atlas experiments of the large hadron collider ( lhc ) at centre - of - mass energies of @xmath1 , 8 , and 13 tev . we report theoretical predictions delivered to the lhcb and atlas collaborations adjusted for the fi... | 200 |
0812.4612 | i explore entanglement dynamics in a three qubit system comparing the ability of entanglement witnesses to detect tri - partite entanglement to the phenomenon of entanglement sudden death ( esd ) . using a system subject to dephasing i invoke entanglement witnesses to detect tri - partite ghz and w - type entanglement ... | 127 |
cond-mat0509295 | we report detailed studies of the ac susceptibility butterfly hysteresis on the ru1222 ruthenocuprate compounds . two separate contributions to these hysteresis have been identified and studied . one contribution is ferromagnetic - like and is characterized by the coercive field maximum . another contribution , represe... | 159 |
0801.2981 | we report and discuss case study simulations of the rayleigh - taylor instability in the boussinesq , incompressible regime developed to turbulence . our main focus is on a statistical analysis of density and velocity fluctuations inside of the already developed and growing in size mixing zone . novel observations repo... | 115 |
1508.06519 | diverse models of engines energised by quantum - coherent , hence non - thermal , baths allow the engine efficiency to transgress the standard thermodynamic carnot bound . these transgressions call for an elucidation of the underlying mechanisms . here we show that non - thermal baths may impart not only heat , but als... | 120 |
cond-mat9503032 | we perform an exact enumeration study of polymers formed from a ( quenched ) random sequence of charged monomers @xmath0 . such polymers , known as polyampholytes , are compact when completely neutral and expanded when highly charged . our exhaustive search included all spatial conformations and quenched sequences for ... | 134 |
nlin0702018 | the chaotic sea below the lowest energy spanning curve of the complete fermi - ulam model ( fum ) is numerically investigated when the amplitude of oscillation @xmath0 of the moving wall is small . we use scaling analysis near the integrable to non - integrable transition to describe the average energy as function of t... | 218 |
gr-qc0109078 | the dynamical instability of new - born neutron stars is studied by evolving the linearized hydrodynamical equations . the neutron stars considered in this paper are those produced by the accretion induced collapse of rigidly rotating white dwarfs . a dynamical bar - mode ( @xmath0 ) instability is observed when the ra... | 179 |
cond-mat9710250 | an _ ab initio _ hartree - fock approach aimed at directly obtaining the localized orthogonal orbitals ( wannier functions ) of a crystalline insulator is described in detail . the method is used to perform all - electron calculations on the ground states of crystalline lithium fluoride and lithium chloride , without t... | 119 |
1004.5511 | consider the celebrated lyness recurrence @xmath0 with @xmath1 . first we prove that there exist initial conditions and values of @xmath2 for which it generates periodic sequences of rational numbers with prime periods @xmath3 or @xmath4 and that these are the only periods that rational sequences @xmath5 can have . it ... | 226 |
1412.3932 | synchrotron radiation x - ray absorption and emission spectroscopy techniques , complemented by high - resolution transmission electron microscopy methods and density functional theory calculations are employed to investigate the effect of mn in al@xmath0ga@xmath1n : mn samples with an al content up to 100% . the atomi... | 100 |
0806.0695 | these lecture notes provide an introduction to mm / submm extragalactic astronomy , focused on agn studies , with the final goal of preparing students to their future exploitation of the alma capabilities . i first provide an overview of the current results obtained through mm / submm observations of galaxies and agns ... | 161 |
astro-ph9907145 | high - accuracy astrometry permits the determination of not only stellar tangential motion , but also the component along the line - of - sight . such non - spectroscopic ( i.e. astrometric ) radial velocities are independent of stellar atmospheric dynamics , spectral complexity and variability , as well as of gravitat... | 154 |
physics0309032 | a proximity focusing ring imaging cherenkov detector using aerogel as the radiator has been studied for an upgrade of the belle detector at the kek - b - factory . we constructed a prototype cherenkov counter using a @xmath0 array of 64-channel flat - panel multi - anode pmts ( hamamatsu h8500 ) with a large effective ... | 198 |
1107.5118 | the problem of the nonequivalence of the sets of equilibrium points and energy - casimir extremal points , which occurs in the noncanonical hamiltonian formulation of equations describing ideal fluid and plasma dynamics , is addressed in the context of the euler equation for an incompressible inviscid fluid . the probl... | 222 |
1607.02851 | we describe a method for calculating the probability with which the wall of a plasma absorbs an electron at low energy . the method , based on an invariant embedding principle , expresses the electron absorption probability as the probability for transmission through the wall s long - range surface potential times the ... | 126 |
astro-ph0305513 | intermediate mass stars occupy the mass range between 0.8 - 8 . in this contribution , evolutionary models of these stars from numerous sources are compared in terms of their input physics and predicted yields . in particular , the results of renzini & voli , van den hoek & groenewegen , and marigo are discussed . gene... | 189 |
1604.05499 | many natural language processing ( nlp ) tasks can be generalized into segmentation problem . in this paper , we combine semi - crf with neural network to solve nlp segmentation tasks . our model represents a segment both by composing the input units and embedding the entire segment . we thoroughly study different comp... | 124 |
1201.1750 | two - photon photoassociation of hot magnesium atoms by femtosecond laser pulses , creating electronically excited magnesium dimer molecules , is studied from first principles , combining _ ab initio _ quantum chemistry and molecular quantum dynamics . this theoretical framework allows for rationalizing the generation ... | 146 |
astro-ph0106163 | we derive a semi - analytic solution for the structure of conduction - mediated transition layers above an x - ray illuminated accretion disk , and calculate explicitly the x - ray line radiation resulting from both resonance line scattering and radiative recombination in these layers . the vertical thermal structure o... | 177 |
1204.4181 | we present the results of a machine - learning ( ml ) based search for new r coronae borealis ( rcb ) stars and dy persei - like stars ( dypers ) in the galaxy using cataloged light curves from the all - sky automated survey ( asas ) catalog of variable stars ( acvs ) . rcb stars a rare class of hydrogen - deficient ca... | 299 |
astro-ph0701356 | we present accurate @xmath0-band photometry for a planetary transit of ogle - tr-111 acquired with vimos at the eso very large telescope . the measurement of this transit allows to refine the planetary radius , obtaining @xmath1 . given the mass of @xmath2 previously measured from radial velocities , we confirm that th... | 116 |
astro-ph0103370 | in this article i review the main theoretical problems that are posed by the highest energy end of the observed cosmic ray spectrum , stressing the importance of establishing their composition in order to decide between proposed scenarios . i then discuss the possibilities that are opened by the detection of inclined s... | 125 |
astro-ph0006361 | the late - type galaxy ngc 4303 ( m61 ) is one of the most intensively studied barred galaxies in the virgo cluster . its prominent enhanced star formation throughout large areas of the disk can be nicely studied due to its low inclination of about 27 . we present observations of ngc 4303 with the rosat pspc and hri in... | 243 |
nucl-th0507028 | we discuss an exact analytical solution of a simplified version of the statistical multifragmentation model with the restriction that the largest fragment size can not exceed the finite volume of the system . a complete analysis of the isobaric partition singularities of this model is done for finite volumes . it is sh... | 168 |
1305.2474 | a massive star can enter the blue supergiant region either evolving directly from the main - sequence , or evolving from a previous red supergiant stage . the fractions of the blue supergiants having different histories depend on the internal mixing and mass - loss during the red supergiant stage . we study the possibi... | 296 |
1305.4233 | a clear understanding of body force densities due to external electromagnetic fields is necessary to study flow and deformation of materials exposed to the fields . in this paper , we derive an expression for stress in continua with viscous and elastic properties in presence of external , static electric or magnetic fl... | 134 |
0810.4363 | laser cooling and trapping are now widely used in atomic physics laboratory . interestingly , cold atoms in optical lattices are now used in advanced research to mimic phenomena in condensed matter physics and also as a test laboratory for the models of these phenomena . it follows then that it is now possible and nece... | 136 |
cond-mat0401431 | we present a continuum model for the propagation of cracks and fractures in brittle materials . the components of the strain tensor @xmath0 are the fundamental variables . the evolution equations are based on a free energy that reduces to that of linear elasticity for small @xmath0 , and accounts for cracks through ene... | 177 |
0906.5048 | using a markov chain monte carlo approach , we find the allowed parameter space of a mssm model with seven free parameters . in this model universality conditions at the gut scale are imposed on the gaugino sector . we require in particular that the relic density of dark matter saturates the value extracted from cosmol... | 217 |
astro-ph9909478 | we perform a series of high resolution n - body simulations designed to examine the density profiles of dark matter halos . from 12 simulated halos ranging the mass of @xmath0 ( represented by @xmath1 million particles within the virial radius ) , we find a clear systematic correlation between the halo mass and the slo... | 179 |
1507.03886 | sports are spontaneous generators of stories . through skill and chance , the script of each game is dynamically written in real time by players acting out possible trajectories allowed by a sport s rules . by properly characterizing a given sport s ecology of ` game stories ' , we are able to capture the sport s capac... | 172 |
astro-ph0510499 | we have analysed the magnitudes , kinematics and positions of a complete sample of 320 pns in the elliptical galaxy ngc 4697 . we show ( i ) that the pns in ngc 4697 do not constitute a single population that is a fair tracer of the distribution of all stars . the radial velocity distributions , mean velocities , and d... | 273 |
1506.02756 | we study surface and bulk properties of porous films produced by a model in which particles incide perpendicularly to a substrate , interact with deposited neighbors in its trajectory , and aggregate laterally with probability of order @xmath0 at each position . the model generalizes ballistic - like models by allowing... | 208 |
1101.3474 | gene set enrichment analysis ( gsea ) and its variations aim to discover collections of genes that show moderate but coordinated differences in expression . however , such techniques may be ineffective if many individual genes in a phenotype - related gene set have weak discriminative power . a potential solution is to... | 273 |
1202.1138 | we present scaling relations between stellar - mass ( @xmath0 ) and the size of galaxies at @xmath1 for half- ( @xmath2 ) and 90 percent - light ( @xmath3 ) radii , using a deep @xmath4-band selected catalogue taken with the subaru telescope and moircs in the goods - north region . the logarithmic slope @xmath5 is inde... | 265 |
0811.1192 | we study the relaxation dynamics of systems of straight , parallel crystal dislocations , starting from initially random and uncorrelated positions of the individual dislocations . a scaling model of the relaxation process is constructed by considering the gradual extinction of the initial density fluctuations present ... | 120 |
0912.4700 | a theoretical model for the calculation of the phonon - drag thermopower , @xmath0 , in degenerately doped semiconducting single - wall carbon nanotubes ( swcnts ) is proposed . detailed calculations of @xmath0 are performed as a function of temperature , tube radius and position of the fermi level . we derive a simple... | 163 |
1010.3062 | relationships between the x - ray and radio behavior of black hole x - ray binaries during outbursts have established a fundamental coupling between the accretion disks and radio jets in these systems . i begin by reviewing the prevailing paradigm for this disk - jet coupling , also highlighting what we know about simi... | 285 |
1307.2146 | we present a x - ray survey of the disrupted recycled pulsars ( drps ) , isolated radio pulsars with @xmath0 ms and @xmath1 g. these observations were motivated as a search for the immediate descendants of the @xmath2 central compact objects ( ccos ) in supernova remnants , three of which have similar timing and magnet... | 234 |
astro-ph9907268 | i review the constraints imposed by the observed extragalactic background light ( ebl ) on the history of the stellar birthrate in galaxies . at faint magnitudes , the logarithmic slope of the galaxy counts is flatter than @xmath0 in all seven @xmath1 optical bandpasses of the _ hubble deep field - south _ imaging surv... | 194 |
astro-ph0501370 | we present a generalization of the multiphase chemical evolution model applied to a wide set of theoretical galaxies with different masses and evolutionary rates . this generalized set of models has been computed using the so - called _ universal rotation curve _ from @xcite to calculate the radial mass distribution of... | 280 |
physics0008061 | for short , high - intensity electron bunches , alkali - tellurides have proved to be a reliable photo - cathode material . measurements of lifetimes in an rf gun of the clic test facility ii at field strengths greater than 100 mv / m are presented . before and after using them in this gun , the spectral response of th... | 191 |
1407.0247 | we present an inelastic neutron scattering study on single - crystalline lifeas devoted to the characterization of the incommensurate antiferromagnetic fluctuations at @xmath0 . time - of - flight measurements show the presence of these magnetic fluctuations up to an energy transfer of 60 mev , while polarized neutrons... | 164 |
1602.05027 | by means of one - step model calculations the strong in - plane anisotropy seen in angle - resolved photoemission of the well - known iron pnictide prototype compounds and in their low - temperature antiferromagnetic phases is investigated . the fully - relativistic calculations are based on the korringa - kohn - rosto... | 195 |
0712.1883 | we give an exposition of the parametrization method of @xcite in the context of the multisymplectic approach to field theory , as presented in @xcite . the purpose of the formalism developed herein is to make any classical field theory , containing a metric as a sole background field , generally covariant ( that is , _... | 175 |
1406.4412 | flagellated bacteria exploiting helical propulsion are known to swim along circular trajectories near surfaces . fluid dynamics predicts this circular motion to be clockwise ( cw ) above a rigid surface ( when viewed from inside the fluid ) and counter - clockwise ( ccw ) below a free surface . recent experimental inve... | 244 |
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