output
19932026
most citedQuantum Computation with Quantum Dots

6.9k citations

Showing 2001 · astro-phShow all

24 papers · 2 filters

astro-ph2001★ 15 cited

BaSeL: a library of synthetic spectra and colours for GAIA

E. Lastennet, T. Lejeune, E. Oblak +2

The BaseL Stellar Library (BaSeL) is a library of synthetic spectra which has already been used in various astrophysical applications (stellar clusters studies, characterization an…

astro-ph2001★ 936 cited

Nucleosynthesis in Massive Stars With Improved Nuclear and Stellar Physics

T. Rauscher, A. Heger, R. D. Hoffman +1

We present the first calculations to follow the evolution of all stable nuclei and their radioactive progenitors in stellar models computed from the onset of central hydrogen burni…

astro-ph2001★ 17 cited

Probability distribution of density fluctuations in the non-linear regime

J. Betancort-Rijo, M. Lopez-Corredoira

We present a general procedure for obtaining the present density fluctuation probability distribution given the statistics of the initial conditions. The main difficulties faced wi…

astro-ph2001★ 250 cited

A standard stellar library for evolutionary synthesis. III. Metallicity calibration

P. Westera, T. Lejeune, R. Buser +2

We extend the colour calibration of the widely used BaSeL standard stellar library (Lejeune, Cuisinier, & Buser 1997, 1998) to non-solar metallicities, down to [Fe/H] ~ -2.0 dex. S…

astro-ph2001★ 135 cited

Intracluster Planetary Nebulae in Virgo: Photometric selection, spectroscopic validation and cluster depth

M. Arnaboldi, J. A. L. Aguerri, N. R. Napolitano +6

We have imaged an empty area of 34'x34' one and a half degree north of the Virgo cluster core to survey for intracluster planetary nebula candidates. We have implemented and tested…

astro-ph2001★ 58 cited

Mo()Mo scattering,the Mo-- optical potential, and the Ru()Mo reaction rate at astrophysically relevant energies

Zs. Fülöp, Gy. Gyürky, Z. Máté +9

The elastic scattering cross section ofMo(,)Mo has been measured at energies of 13, 16, and 19 MeV in a wide angular range. The real and…

astro-ph2001★ 45 cited

Limits to Interstellar C_4 and C_5 Towards zeta Ophiuchi

John P. Maier, Gordon A. H. Walker, David A. Bohlender

We have made a sensitive search for the origin bands in the known electronic transitions of the linear carbon chains C_4 and C_5 at 3789 and 5109 A towards zeta Oph (A_V <= 1). The…

astro-ph2001★ 267 cited

Spiral arms, bar shape and bulge microlensing in the Milky Way

Nicolai Bissantz, Ortwin Gerhard

A new model for the luminosity distribution in the inner Milky Way is found, using a non-parametric penalized maximum-likelihood algorithm to deproject a dereddened COBE/DIRBE L-ba…

astro-ph2001★ 26 cited

Massive Star Evolution: Nucleosynthesis and Nuclear Reaction Rate Uncertainties

A. Heger, S. E. Woosley, T. Rauscher +2

We present a nucleosynthesis calculation of a 25 solar mass star of solar composition that includes all relevant isotopes up to polonium. In particular, all stable isotopes and nec…

astro-ph2001

Insights from Pulsating Nova Envelopes

Klaus Schenker

Based on a linear and non-linear study of radial pulsations in the envelopes of classical novae (Schenker 1999), I discuss the results both from the point of view of pulsation theo…

astro-ph2001★ 139 cited

Detection, photometry and slitless radial velocities of 535 planetary nebulae in the flattened elliptical galaxy NGC 4697

R. H. Mendez, A. Riffeser, R. P. Kudritzki +5

We have detected 535 planetary nebulae (PNs) in NGC 4697, using the classic on-band, off-band filter technique with the Focal Reducer and Spectrograph (FORS) at the Cassegrain focu…

astro-ph2001★ 218 cited

The effects of seeing on Sersic profiles. II. The Moffat PSF

I. Trujillo, A. Aguerri, J. Cepa +1

The effects of seeing on Sersic r^{1/n} profile parameters are extensively studied using a Moffat function. This analytical approximation to the point spread function (PSF) is show…

astro-ph2001★ 118 cited

Cepheid Calibration of the Peak Brightness of SNe Ia. XI. SN 1998aq in NGC 3982

A. Saha, Allan Sandage, G. A. Tammann +4

Repeated imaging observations have been made of NGC 3982 with the Hubble Space Telescope between March and May 2000, over an interval of 53 days. Images were obtained on 12 epochs…

astro-ph2001

The dynamics of the dE galaxy FS76 : bridging the kinematic dichotomy between Es and dEs

S. De Rijcke, H. Dejonghe, W. W. Zeilinger +1

We present major and minor axis kinematics out to 2 half-light radii for the bright (M_B=-16.7) dwarf elliptical FS76, a member of the NGC5044 group. Its velocity dispersion is 46…

astro-ph2001★ 64 cited

Implications of O and Mg abundances in metal-poor halo stars for stellar iron yields

D. Argast, M. Samland, F. -K. Thielemann +1

Inhomogeneous chemical evolution models of galaxies which try to reproduce the scatter seen in element-to-iron ratios of metal-poor halo stars are heavily dependent on theoretical…

astro-ph2001★ 12 cited

New statistical goodness of fit techniques in noisy inhomogeneous inverse problems - With application to the recovering of the luminosity distribution of the Milky Way

Nicolai Bissantz, Axel Munk

The assumption that a parametric class of functions fits the data structure sufficiently well is common in fitting curves and surfaces to regression data. One then derives a parame…

astro-ph2001★ 3 cited

Nuclear Aspects of the s- and n-Processes in Massive Stars

T. Rauscher, A. Heger, S. E. Woosley +1

In order to study the processes creating intermediate and heavy nuclei in massive stars it is necessary to provide neutron capture cross sections and reaction rates close to stabil…

astro-ph2001★ 90 cited

An Adaptive Grid, Implicit Code for Spherically Symmetric, General Relativistic Hydrodynamics in Comoving Coordinates

Matthias Liebendoerfer, Stephan Rosswog, Friedrich-Karl Thielemann

We describe an implicit general relativistic hydrodynamics code. The evolution equations are formulated in comoving coordinates. A conservative finite differencing of the Einstein…

astro-ph2001★ 37 cited

Quantitative Morphology of the Intermediate-Redshift Galaxy Cluster Abell 2443 from Ground-Based Imaging -- Evidence for a galaxy concentration index correlation with cluster density

I. Trujillo, J. A. L. Aguerri, C. M. Gutierrez +1

We present broad-band photometry and provide a quantitative analysis of the structure of galaxies in the inner region of the Abell Cluster 2443 (z~0.1). The galaxy parameters have…

astro-ph2001★ 68 cited

Measurement of the (gamma,n) reaction rates of the nuclides 190Pt, 192Pt, and 198Pt in the astrophysical gamma-process

K. Vogt, P. Mohr, M. Babilon +6

The nucleosynthesis of heavy neutron-deficient nuclei in a stellar photon bath at the temperatures relevant for the astrophysical gamma process was investigated. In order to derive…

astro-ph2001★ 154 cited

Detection of C in Diffuse Interstellar Clouds

J. P. Maier, N. M. Lakin, G. A. H. Walker +1

The smallest polyatomic carbon chain, C, has been identified in interstellar clouds (A1 mag) towards Ophiuchi, 20 Aquilae, and Persei by detection of the or…

astro-ph2001★ 562 cited

The endpoint of the rp process on accreting neutron stars

H. Schatz, A. Aprahamian, V. Barnard +6

We calculate the rapid proton (rp) capture process of hydrogen burning on the surface of an accreting neutron star with an updated reaction network that extends up to Xe, far beyon…

astro-ph2001★ 74 cited

Element Synthesis in Stars

F. -K. Thielemann, F. Brachwitz, C. Freiburghaus +14

Except for 1H, 2H, 3He, 4He, and 7Li, originating from the Big Bang, all heavier elements are made in stellar evolution and stellar explosions. Nuclear physics, and in many cases n…

astro-ph2001

Hypernova Nucleosynthesis and Implications for Cosmic Chemical Evolution

Takayoshi Nakamura, Hideyuki Umeda, Koichi Iwamoto +4

We examine the characteristics of nucleosynthesis in 'hypernovae', i.e., supernovae with very large explosion energies ($\gsim 10^{52}$ ergs). Implications for the cosmic chemical…