Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Max Planck SocietyDE1.2k papers
- Centre National de la Recherche ScientifiqueFR1k papers
- National Institute for AstrophysicsIT820 papers
- European Southern ObservatoryCL784 papers
- Center for Astrophysics Harvard & SmithsonianUS755 papers
- Max Planck Institute for Extraterrestrial PhysicsDE722 papers
- Ludwig-Maximilians-Universität MünchenDE639 papers
- Space Research InstituteRU602 papers
- Osservatorio Astronomico di PadovaIT600 papers
- California Institute of TechnologyUS581 papers
- Trieste Astronomical ObservatoryIT566 papers
- University of California, BerkeleyUS566 papers
237 papers · 1 filter
Nucleosynthesis in O-Ne-Mg Supernovae
R. D. Hoffman, B. Muller, H. -T. Janka
We have studied detailed nucleosynthesis in the shocked surface layers of an Oxygen-Neon-Magnesium core collapse supernova with an eye to determining if the conditions are suitable…
Supernova explosions and the birth of neutron stars
H. -Th. Janka, A. Marek, B. Mueller +1
We report here on recent progress in understanding the birth conditions of neutron stars and the way how supernovae explode. More sophisticated numerical models have led to the dis…
The Outermost Ejecta of Type Ia Supernovae
Masaomi Tanaka, Paolo A. Mazzali, Stefano Benetti +6
The properties of the highest velocity ejecta of normal Type Ia supernovae (SNe Ia) are studied via models of very early optical spectra of 6 SNe. At epochs earlier than 1 week bef…
The carbon-rich type Ic SN 2007gr: the photospheric phase
S. Valenti, N. Elias-Rosa, S. Taubenberger +20
The first two months of spectroscopic and photometric monitoring of the nearby type Ic SN 2007gr are presented. The very early discovery (less than 5 days after the explosion) and…
Anomalous X-Ray emission in GRB060904B: a Nickel line?
R. Margutti, A. Moretti, F. Pasotti +6
The detection of an extra component in GRB060904B X-ray spectra in addition to the standard single power-law behaviour has recently been reported in the literature. This component…
The Extinction Toward the Galactic Bulge from RR Lyrae Stars
Andrea Kunder, Piotr Popowski, Kem H. Cook +1
We present mean reddenings toward 3525 RR0 Lyrae stars from the Galactic bulge fields of the MACHO Survey. These reddenings are determined using the color at minimum -band light…
Dynamics of shock propagation and nucleosynthesis conditions in O-Ne-Mg core supernovae
H. -Th. Janka, B. Mueller, F. S. Kitaura +1
It has been recently proposed that the shocked surface layers of exploding O-Ne-Mg cores provide the conditions for r-process nucleosynthesis, because their rapid expansion and hig…
Neutrino oscillation signatures of oxygen-neon-magnesium supernovae
C. Lunardini, B. Mueller, H. -Th. Janka
We discuss the flavor conversion of neutrinos from core collapse supernovae that have oxygen-neon-magnesium (ONeMg) cores. Using the numerically calculated evolution of the star up…
Special Relativistic Simulations of Magnetically-dominated Jets in Collapsing Massive Stars
Tomoya Takiwaki, Kei Kotake, Katsuhiko Sato
We perform a series of two-dimensional magnetohydrodynamic core-collapse simulations of rapidly rotating and strongly magnetized massive stars. To study the properties of magnetic…
Strong lensing optical depths in a LCDM universe II: the influence of the stellar mass in galaxies
Stefan Hilbert, Simon D. M. White, Jan Hartlap +1
We investigate how strong gravitational lensing in the concordance LCDM cosmology is affected by the stellar mass in galaxies. We extend our previous studies, based on ray-tracing…
On the existence of a reverse shock in magnetized GRB ejecta
D. Giannios, P. Mimica, M. A. Aloy
The role of magnetic fields in gamma-ray burst (GRB) flows remains controversial. The study of the early afterglow phases and, in particular, of the reverse shock dynamics and asso…
The underluminous Type Ia Supernova 2005bl and the class of objects similar to SN 1991bg
S. Taubenberger, S. Hachinger, G. Pignata +24
Optical observations of the Type Ia supernova (SN Ia) 2005bl in NGC 4070, obtained from -6 to +66 d with respect to the B-band maximum, are presented. The photometric evolution is…
The double Subgiant Branch of NGC 1851: the role of the CNO abundance
S. Cassisi, M. Salaris, A. Pietrinferni +4
We explore the possibility that the anomalous split in the Subgiant branch of the galactic globular cluster NGC 1851 is due to the presence of two distinct stellar populations with…
Collisional interaction limits between dark matters and baryons in `cooling flow' clusters
Jian Hu, Yu-Qing Lou
Presuming weak collisional interactions to exchange the kinetic energy between dark matter and baryonic matter in a galaxy cluster, we re-examine the effectiveness of this process…
Realistic simulations of gravitational lensing by galaxy clusters: extracting arc parameters from mock DUNE images
Massimo Meneghetti, Peter Melchior, Andrea Grazian +6
We present a newly developed code that allows simulations of optical observations of galaxy fields with a variety of instruments. The code incorporates gravitational lensing effect…
Masses for the Local Group and the Milky Way
Yang-Shyang Li, Simon D. M. White
We use the very large Millennium Simulation of the concordance CDM cosmogony to calibrate the bias and error distribution of Timing Argument estimators of the masses of the Loca…
Pulse phase resolved analysis of the HMXB Cen X-3 over two binary orbits
S. Suchy, K. Pottschmidt, J. Wilms +7
We present a detailed analysis of observations of the high mass X-ray binary Cen X-3 spanning two consecutive binary orbits performed with the RXTE satellite in early March 1997. T…
Probing Elemental Abundances in SNR 1987A Using XMM-Newton
Kevin Heng, Frank Haberl, Bernd Aschenbach +1
We report on the latest (2007 Jan) observations of supernova remnant (SNR) 1987A from the XMM-Newton mission. Since the 2003 May observations of Haberl et al. (2006), 11 emission l…
Modeling the cosmological co-evolution of supermassive black holes and galaxies: I. BH scaling relations and the AGN luminosity function
Federico Marulli, Silvia Bonoli, Enzo Branchini +2
We model the cosmological co-evolution of galaxies and their central supermassive black holes (BHs) within a semi-analytical framework developed on the outputs of the Millennium Si…
An improved measurement of the flux distribution of the Ly-alpha forest in QSO absorption spectra: the effect of continuum fitting, metal contamination and noise properties
T. -S. Kim, J. S. Bolton, M. Viel +2
We have performed an extensive Voigt profile analysis of the neutral hydrogen (HI) and metal absorption present in a sample of 18 high resolution, high signal-to-noise QSO spectra…
The impact of Spitzer infrared data on stellar mass estimates - and a revised galaxy stellar mass function at 0 < z < 5
F. Elsner, G. Feulner, U. Hopp
Aims: We estimate stellar masses of galaxies in the high redshift universe with the intention of determining the influence of newly available Spitzer/IRAC infrared data on the anal…
Radio observational constraints on Galactic 3D-emission models
X. H. Sun, W. Reich, A. Waelkens +1
(Abridged) We constrain simulated all-sky maps in total intensity, linear polarization, and rotation measure (RM) by observations. We test a number of large-scale magnetic field co…
The fine-grained phase-space structure of Cold Dark Matter halos
Mark Vogelsberger, Simon D. M. White, Amina Helmi +1
We present a new and completely general technique for calculating the fine-grained phase-space structure of dark matter throughout the Galactic halo. Our goal is to understand this…
On the backwards difference filter
R. A. García, J. Ballot
It is usual in helioseismology to remove unwanted instrumental low-frequency trends by applying high-pass filters to the time series. However, the choice of the filter is very impo…