881 citations · 29.1k across the 1.2k of their papers we have counts for
56 papers · 1 filter
Quantum dynamics in view of Einstein's theory of Brownian motion
Sumiyoshi Abe, A. K. Rajagopal
A quantum-mechanical version of Einstein's 1905 theory of Brownian motion is presented. Starting from the Hamiltonian dynamics of an isolated composite of objective and environment…
The chemical composition of metal-poor emission-line galaxies in the Data Release 3 of the Sloan Digital Sky Survey
Y. I. Izotov, G. Stasinska, G. Meynet +2
We have re-evaluated empirical expressions for the abundance determination of N, O, Ne, S, Cl, Ar and Fe taking into account the latest atomic data and constructing an appropriate…
Molecular gas in QSO host galaxies
T. Bertram, A. Eckart, M. Krips +3
We present the results of a survey for CO line emission from a sample of nearby QSO hosts taken from the Hamburg/ESO survey (HES) and the Veron-Cetty and Veron quasar catalogue. Fr…
Critical currents in superconductors with quasiperiodic pinning arrays: One-dimensional chains and two-dimensional Penrose lattices
V. R. Misko, Sergey Savel'ev, Franco Nori
We study the critical depinning current J_c, as a function of the applied magnetic flux Phi, for quasiperiodic (QP) pinning arrays, including one-dimensional (1D) chains and two-di…
On stability and spiral patterns in polar disks
Ch. Theis, L. Sparke, J. Gallagher
To investigate the stability properties of polar disks we performed two-dimensional hydrodynamical simulations for flat polytropic gaseous self-gravitating disks which were perturb…
Molecular gas in the galaxy cluster Abell 262. CO observations of UGC 1347 and other galaxies of the cluster
T. Bertram, A. Eckart, M. Krips +2
We present millimeter CO line emission observations of 12 galaxies within the Abell 262 cluster, together with L_FIR data, in the context of a possible molecular gas deficiency wit…
GCIRS34W: An irregular variable in the Galactic Centre
S. Trippe, F. Martins, T. Ott +7
We report the results of time-resolved photometric and spectroscopic near-infrared observations of the Ofpe/WN9 star and LBV candidate GCIRS34W in the Galactic Centre star cluster.…
Static and dynamic Jahn-Teller effect in the alkali metal fulleride salts A4C60 (A = K, Rb, Cs)
G. Klupp, K. Kamaras, N. M. Nemes +2
We report the temperature dependent mid- and near-infrared spectra of K4C60, Rb4C60 and Cs4C60. The splitting of the vibrational and electronic transitions indicates a molecular sy…
Particle Acceleration at High- Shock Waves
Jacek Niemiec
First-order Fermi acceleration processes at ultrarelativistic shocks are studied with Monte Carlo simulations. The accelerated particle spectra are obtained by integrating the exac…
[CI] and CO in the center of M 51
F. P. Israel, R. P. J. Tilanus, F. Baas
We present J=2-1, J=3-2, J=4-3 12CO maps as well as J=2-1, J=3-2 13CO and 492 GHz [CI] measurements of the central region in M51. The distribution of CO is strongly concentrated to…
Orientation of molecules via laser-induced anti-alignment
E. Gershnabel, I. Sh. Averbukh, R. J. Gordon
We show that field-free molecular orientation induced by a half-cycle pulse may be considerably enhanced by an additional laser pulse inducing molecular anti-alignment. Two qualita…
Pressure dependence of magnetic and superconducting transitions in sodium cobalt oxides NaxCoO2
Y. V. Sushko, O. B. Korneta, S. O. Leontsev +3
The results of DC magnetization measurements under hydrostatic (helium-gas) pressure are reported for an ambient pressure superconductor Na0.35CoO2.1.4D2O and its precursor compoun…
Morphology of the coronal line region in active galactic nuclei
M. Almudena Prieto, Olivier Marco, Jack Gallimore
We present new images of the coronal line region, as traced by [Si VII] 2.48 \um, in some of the nearest Seyfert 2 galaxies. In each of these galaxies, the coronal line emission co…
Spectral analyses of DO white dwarfs and PG1159 stars from the Sloan Digital Sky Survey
S. D. Huegelmeyer, S. Dreizler, K. Werner +3
We present a model atmosphere analysis of ten new DO white dwarfs and five new PG 1159 stars discovered in the Sloan Digital Sky Survey DR1, DR2 and DR3. This is a significant incr…
The Westerbork HI Survey of spiral and irregular galaxies III: HI observations of early-type disk galaxies
E. Noordermeer, J. M. van der Hulst, R. Sancisi +2
We present HI observations of 68 early-type disk galaxies from the WHISP survey. They have morphological types between S0 and Sab and absolute B-band magnitudes between -14 and -22…
The kinetic temperature of a molecular cloud at redshift 0.7: Ammonia in the gravitational lens B0218+357
C. Henkel, N. Jethava, A. Kraus +6
Using the Effelsberg 100-m telescope, absorption in the (J,K) = (1,1), (2,2) and (3,3) inversion lines of ammonia (NH_3) was detected at a redshift of z = 0.6847 toward the gravita…
Proposal for Cherenkov Time of Flight Technique with Picosecond Resolution
S. Majewski, A. Margaryan, L. Tang
A new particle identification device for Jlab 12 GeV program is proposed. It is based on the measurement of time information obtained by means of a new photon detector and time mea…
Experimental Investigation of Weak Non-Mesonic Decay of 10Be(Lambda)Hypernuclei at CEBAF
S. Majewski, L. Majling, A. Margaryan +1
Hypernuclei are convenient laboratory to study the baryon-baryon weak interaction and associated effective Hamiltonian. The strangeness changing process, in which a Lambda hyperon…
Lyman alpha emission from local starburst galaxies and high-z objects
G. Ostlin, M. Hayes, J. M. Mas-Hesse +3
We review the history and the current status of the understanding of the processes that regulate Lyman alpha emission from star-forming galaxies. We present some of the most recent…
Constraints on dark matter and the shape of the Milky Way dark halo from the 511 keV line
Y. Ascasibar, P. Jean, C. Boehm +1
About one year ago, it was speculated that decaying or annihilating Light Dark Matter (LDM) particles could explain the flux and extension of the 511 keV line emission in the galac…
Introduction to statistical physics of media processes: Mediaphysics
Dmitri V. Kuznetsov, Igor Mandel
Processes of mass communications in complicated social or sociobiological systems such as marketing, economics, politics, animal populations, etc. as a subject for the special scie…
The large asymmetric HI envelope of the isolated galaxy NGC 864 (CIG 96)
D. Espada, A. Bosma, L. Verdes-Montenegro +4
We present a HI synthesis imaging study of NGC 864 (CIG 96), a spiral galaxy well isolated from similarly sized companions, yet presenting an intriguing asymmetry in its integral H…
The dynamical disconnection of sunspots from their magnetic roots
M. Schuessler, M. Rempel
After a dynamically active emergence phase, magnetic flux at the solar surface soon ceases to show strong signs of the subsurface dynamics of its parent magnetic structure. This in…
Infrared luminosity functions from the Chandra Deep Field South : the Spitzer view on the history of dusty star formation at 0<z<1
E. Le Floc'h, C. Papovich, H. Dole +14
We analyze a sample of ~2600 MIPS/Spitzer 24mic sources brighter than ~80muJy and located in the Chandra Deep Field South to characterize the evolution of the comoving infrared (IR…