Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR336 papers
- ETH ZurichCH215 papers
- Petersburg Nuclear Physics InstituteRU204 papers
- Massachusetts Institute of TechnologyUS182 papers
- European Organization for Nuclear ResearchCH168 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR167 papers
- University of GenevaCH163 papers
- Hungarian Academy of SciencesHU159 papers
- California Institute of TechnologyUS145 papers
- Paul Scherrer InstituteCH143 papers
- University of BolognaIT143 papers
- University of MichiganUS143 papers
29 papers · 2 filters
Dynamical family properties and dark halo scaling relations of giant elliptical galaxies
Ortwin Gerhard, Andi Kronawitter, R. P. Saglia +1
Based on a uniform dynamical analysis of line-profile shapes for 21 luminous round elliptical galaxies, we have investigated the dynamical family relations of ellipticals: (i) The…
On the origin of the Ca-Ti-Cr isotopic anomalies in the inclusion EK-1-4-1 of the Allende Meteorite
K. -L. Kratz, W. Boehmer, C. Freiburghaus +4
In the framework of our investigation to explain the nucleosynthesis origin of the correlated Ca-Ti-Cr isotopic anomalies in the Ca-Al-rich ''FUN'' inclusion EK-1-4-1 of the Allend…
Growth of Galactic Bulges by Mergers: I. Dense Satellites
J. A. L. Aguerri, M. Balcells, R. F. Peletier
Andredakis, Peletier & Balcells (1995) fit Sersic's law to the bulges of the Balcells & Peletier (1994) galaxy sample, and infer that drops with morphologic…
Optical Surface Photometry of a Sample of Disk Galaxies. II Structural Components
M. Prieto, J. A. L. Aguerri, A. M. Varela +1
This work presents the structural decomposition of a sample of 11 disk galaxies, which span a range of different morphological types. The U, B, V, R, and I photometric information…
Conservative General Relativistic Radiation Hydrodynamics in Spherical Symmetry and Comoving Coordinates
Matthias Liebendoerfer, Anthony Mezzacappa, Friedrich-Karl Thielemann
The description of general relativistic radiation hydrodynamics in spherical symmetry is presented in natural coordinate choices. For hydrodynamics, comoving coordinates are chosen…
Cepheid Calibration of the Peak Brightness of SNe Ia. X. SN 1991T in NGC 4527
A. Saha, A. Sandage, Frank Thim +5
Repeated imaging observations have been made of NGC 4527 with the Hubble Space Telescope between April and June 1999, over an interval of 69 days. Images were obtained on 12 epochs…
Database of Geneva stellar evolution tracks and isochrones for UBVRIJHKLL'M, HST-WFPC2, Geneva and Washington photometric systems
Thibault Lejeune, Daniel Schaerer
We have used an updated version of the empirically and semi-empirically calibrated BaSeL library of synthetic stellar spectra of Lejeune et al. (1997, 1998) and Westera et al. (199…
Explosive Nucleosynthesis in Hypernovae
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). We carry out detailed nucleosynthes…
Structure and Mass Distribution of the Milky Way Bulge and Disk
Ortwin Gerhard
This article summarizes the structural parameters of the Galactic bulge and disk, and discusses the interpretation of the bulge microlensing observations and the determination of t…
The Bar Pattern Speed in NGC 7079
V. P. Debattista, T. B. Williams
We have used 2D Fabry-Perot absorption-line spectroscopy of the SB0 galaxy NGC 7079 to measure its bar pattern speed, $\om$. As in all previous cases of bar pattern speed measureme…
The effects of seeing on Sersic profiles
I. Trujillo, J. A. L. Aguerri, J. Cepa +1
The effects of seeing on the parameters of the Sèrsic profile are studied in an analytical form using a Gaussian point spread function. The surface brightness of Sèrsic profiles is…
Prediction of Astrophysical Reaction Rates: Methods, Data Needs, and Consequences for Nucleosynthesis Studies
T. Rauscher, R. D. Hoffman, S. E. Woosley +1
The majority of nuclear reactions in astrophysics involve unstable nuclei which are not fully accessible by experiments yet. Therefore, there is high demand for reliable prediction…
X-Ray Bursts and Proton Captures Close to the Dripline
T. Rauscher, F. Rembges, H. Schatz +2
The hydrogen-rich accreted envelopes of neutron stars in binary systems are the site for the rapid proton capture nucleosynthethic process (rp-process), which involves nuclei close…
Presupernova collapse models with improved weak-interaction rates
A. Heger, K. Langanke, G. Martinez-Pinedo +1
Improved values for stellar weak interaction rates have been recently calculated based upon a large shell model diagonalization. Using these new rates (for both beta decay and elec…
Dynamical masses, time-scales, and evolution of star clusters
Ortwin Gerhard
This review discusses (i) dynamical methods for determining the masses of Galactic and extragalactic star clusters, (ii) dynamical processes and their time-scales for the evolution…
Nucleosynthesis in Massive Stars - Including All Stable Isotopes
A. Heger, R. D. Hoffman, T. Rauscher +1
We present the first calculations to follow the evolution of all stable isotopes (and their abundant radioactive progenitors) in a finely zoned stellar model computed from the onse…
Constraints from Dynamical Friction on the Dark Matter Content of Barred Galaxies
Victor P. Debattista, J. A. Sellwood
We show that bars in galaxy models having halos of moderate density and a variety of velocity distributions all experience a strong drag from dynamical friction unless the halo has…
Probing the gravitational well: No supernova explosion in spherical symmetry with general relativistic Boltzmann neutrino transport
Matthias Liebendoerfer, Anthony Mezzacappa, Friederich-Karl Thielemann +3
We report on the stellar core collapse, bounce, and postbounce evolution of a 13 solar mass star in a self-consistent general relativistic spherically symmetric simulation based on…
Simulation of the Spherically Symmetric Stellar Core Collapse, Bounce, and Postbounce Evolution of a 13 Solar Mass Star with Boltzmann Neutrino Transport, and Its Implications for the Supernova Mechanism
Anthony Mezzacappa, Matthias Liebendoerfer, O. E. Bronson Messer +3
With exact three-flavor Boltzmann neutrino transport, we simulate the stellar core collapse, bounce, and postbounce evolution of a 13 solar mass star in spherical symmetry, the New…
The Galactic Center He I Stars: Remains of a Dissolved Young Cluster?
Ortwin Gerhard
A massive young star cluster, initially embedded in its parent molecular cloud, will spiral into the Galactic Center from $\lta 30m_6^{1/2}\pc$ during the life-time of its most mas…
IC3328: a "dwarf elliptical galaxy" with spiral structure
Helmut Jerjen, Agris Kalnajs, Bruno Binggeli
We present the 2-D photometric decomposition of the Virgo galaxy IC3328. The analysis of the global light distribution of this morphologically classified nucleated dwarf elliptical…
Supernova type Ia luminosities, their dependence on second parameters, and the value of H_0
B. R. Parodi, A. Saha, A. Sandage +1
A sample of 35 SNe Ia with good to excellent photometry in B and V, minimum internal absorption, and 1200 < v < \approx 30000 km/s is compiled from the literature. As far as their…
Astrophysical Reaction Rates From Statistical Model Calculations
T. Rauscher, F. -K. Thielemann
Theoretical reaction rates in the temperature range 0.01*10^9<=T[K]<=10.*10^9 are calculated in the statistical model (Hauser-Feshbach formalism) for targets with 10<=Z<=83 (Ne to…
Is Galactic Structure Compatible with Microlensing Data?
James Binney, Nicolai Bissantz, Ortwin Gerhard
We generalize to elliptical models the argument of Kuijken (1997), which connects the microlensing optical depth towards the Galactic bulge to the Galactic rotation curve. When app…