6.9k citations
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
33 papers · 2 filters
Large-Scale Model of the Milky Way: Stellar Kinematics and Microlensing Event Timescale Distribution in the Galactic Bulge
Nicolai Bissantz, Victor P. Debattista, Ortwin Gerhard
We build a stellar-dynamical model of the Milky Way barred bulge and disk, using a newly implemented adaptive particle method. The underlying mass model has been previously shown t…
On the C and N Abundances of 47 Tucanae Main Sequence Stars
Michael M. Briley, Daniel Harbeck, Graeme H. Smith +1
We report the results of an analysis of CN and CH band strengths among a large sample of 47 Tucanae main-sequence and turn-off stars presented earlier by Harbeck et al. The resulti…
The nuclear reaction waiting points, Mg22, Si26, S30, and Ar34, and bolometrically double peaked type I X-ray bursts
Jacob Lund Fisker, Friedrich-Karl Thielemann
Type I X-ray bursts with a double peak in the bolometric luminosity have been observed from several sources. The separation between the two peaks are on the order of a few seconds.…
Gas Physics, Disk Fragmentation, and Bulge Formation in Young Galaxies
Andreas Immeli, Markus Samland, Ortwin Gerhard +1
We investigate the evolution of star-forming gas-rich disks, using a 3D chemodynamical model including a dark halo, stars, and a two-phase interstellar medium with feedback process…
Resonance analysis of Sm(n,alpha) cross sections: Comparison to optical model calculations and indications of non-statistical effects
P. E. Koehler, Yu. M. Gledenov, T. Rauscher +1
We have measured the Sm(\textit{n},) cross section from 3 eV to 500 keV and performed an -matrix analysis in the resolved region ( 700 eV) to extr…
Fluctuations of K-band galaxy counts
M. Lopez-Corredoira, J. E. Betancort-Rijo
We measure the variance in the distribution of off-plane (|b|>20 deg.) galaxies with m_K<13.5 from the 2MASS K-band survey in circles of diameter between 0.344 deg. and 57.2 deg. T…
Tracing the Star Stream Through M31 Using Planetary Nebula Kinematics
H. R. Merrett, K. Kuijken, M. R. Merrifield +12
We present a possible orbit for the Southern Stream of stars in M31, which connects it to the Northern Spur. Support for this model comes from the dynamics of planetary nebulae (PN…
NUclei of GAlaxies (NUGA): the IRAM Survey of Low Luminosity AGN
S. Garcia-Burillo, F. Combes, A. Eckart +8
The NUGA project is the first high-resolution (0.5''-1'') CO survey of low luminosity AGN including the full sequence of activity types (Seyfert 1--2 and LINERs). NUGA aims to stud…
Distances, Metallicities, and Ages of Dwarf Elliptical Galaxies in the Virgo Cluster from Surface Brightness Fluctuations
H. Jerjen, Bruno Binggeli, Fabio D. Barazza
We have employed FORS1/2+VLT to acquire deep B and R CCD images of 16 dwarf elliptical galaxies in the direction of the Virgo cluster. For each dwarf we measure the R-band surface…
Molecular Gas in NUclei of GAlaxies (NUGA): II. The Ringed LINER NGC7217
F. Combes, S. Garcia-Burillo, F. Boone +8
We present CO(1-0) and CO(2-1) maps of the LINER galaxy NGC7217, obtained with the IRAM interferometer, at 2.4"x1.9" and 1.2"x0.8" resolution respectively. The nuclear ring (at r=1…
A calibration map for Wide Field Imager photometry
A. Koch, M. Odenkirchen, E. K. Grebel +1
We present a prescription to correct large-scale intensity variations affecting imaging data taken with the Wide Field Imager (WFI) at the MPG/ESO 2.2 m telescope at the European S…
Modeling The Nucleosynthesis Of Massive Stars
T. Rauscher
This overview discusses issues relevant to modeling nucleosynthesis in type II supernovae and implications of detailed studies of the ejecta. After a brief presentation of the most…
Neutron star mergers versus core-collapse supernovae as dominant r-process sites in the early Galaxy
D. Argast, M. Samland, F. -K. Thielemann +1
The astrophysical nature of r-process sites is a long standing mystery and many probable sources have been suggested in the past, among them lower-mass core-collapse supernovae (in…
Neutrino-induced fission of neutron-rich nuclei
E. Kolbe, K. -H. Langanke, G. M. Fuller
We calculate neutrino-induced fission cross sections for selected nuclei with Z=84-92. We show that these reactions populate the daughter nucleus at excitation energies where shell…
NIR surface photometry of a sample of nearby spiral galaxies
N. Castro-Rodriguez, F. Garzon
The first results of an observational programme aimed at mapping a sample of face--on spiral galaxies in the NIR are presented. This paper shows the surface photometry of the first…
Neutrino Nucleosynthesis
A. Heger, E. Kolbe, W. C. Haxton +3
We study neutrino process nucleosynthesis in massive stars using newly calculated cross sections, an expanded reaction network, and complete and self-consistent models of the proge…
Models for Type I X-Ray Bursts with Improved Nuclear Physics
S. E. Woosley, A. Heger, A. Cumming +6
Multi-zone models of Type I X-ray bursts are presented that use an adaptive nuclear reaction network of unprecedented size, up to 1300 isotopes. Sequences of up to 15 bursts are fo…
A three-dimensional Galactic extinction model
R. Drimmel, A. Cabrera-Lavers, M. Lopez-Corredoira
A large-scale three-dimensional model of Galactic extinction is presented based on the Galactic dust distribution model of Drimmel and Spergel (2001). The extinction A_V to any poi…
Formation of the Galactic Halo
Ortwin Gerhard
Recent observational and theoretical work suggests that the formation of the Galactic stellar halo involved both dissipative processes and the accretion of subfragments. With prese…
Sensitivity of the C and O production on the 3-alpha rate
H. Schlattl, A. Heger, H. Oberhummer +2
We investigate the dependence of the carbon and oxygen production in stars on the 3-alpha rate by varying the energy of the 02+-state of 12C and determine the resulting yields for…
VLT surface photometry and isophotal analysis of early-type dwarf galaxies in the Virgo cluster
Fabio D. Barazza, Bruno Binggeli, Helmut Jerjen
We have carried out surface photometry and an isophotal analysis for a sample of 25 early-type dwarf (dE and dS0) galaxies in the Virgo cluster based on CCD images taken at the VLT…
Evolution and Nucleosynthesis of Massive Stars and Related Nuclear Uncertainties
T. Rauscher
Properties of atomic nuclei important for the prediction of astrophysical reaction rates are reviewed. In the first part, a recent simulation of evolution and nucleosynthesis of st…
A spectral survey of the Star Forming Core of the Orion Nebula from 455 -- 507 GHz
Glenn J. White, M. Araki, J. S. Greaves +2
The results of a submillimetre wavelength spectral line survey between 455.1 -- 507.4 GHz of the Orion-KL hot cloud core are reported. A total of 254 lines were detected to a main…
Molecular Gas in NUclei of GAlaxies (NUGA) I.The counter-rotating LINER NGC4826
S. Garcia-Burillo, F. Combes, L. K. Hunt +8
We present new high-resolution observations of the nucleus of the counter-rotating LINER NGC4826, made in the J=1-0 and J=2-1 lines of 12CO with the IRAM Plateau de Bure mm-interfe…