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
33 papers · 2 filters
Large jets from small-scale magnetic fields
R. Moll
We consider the conditions under which a rotating magnetic object can produce a magnetically powered outflow in an initially unmagnetized medium stratified under gravity. 3D MHD si…
Turbulence in a 3D deflagration model for type Ia SNe: II. Intermittency and the deflagration-to-detonation transition probability
W. Schmidt, F. Ciaraldi-Schoolmann, J. C. Niemeyer +2
The delayed detonation model describes the observational properties of the majority of type Ia supernovae very well. Using numerical data from a three-dimensional deflagration mode…
Characteristic velocities of stripped-envelope core-collapse supernova cores
I. Maurer, P. A. Mazzali, J. Deng +9
The velocity of the inner ejecta of stripped-envelope core-collapse supernovae (CC-SNe) is studied by means of an analysis of their nebular spectra. Stripped-envelope CC-SNe are th…
Sub-luminous type Ia supernovae from the mergers of equal-mass white dwarfs with M~0.9 M_sun
Ruediger Pakmor, Markus Kromer, Friedrich K. Roepke +3
Type Ia supernovae (SNe Ia) are thought to result from thermonuclear explosions of carbon-oxygen white dwarf stars. Existing models generally explain the observed properties, with…
Constraining a possible time-variation of the gravitational constant through "gravitochemical heating" of neutron stars
Andreas Reisenegger, Paula Jofré, Rodrigo Fernández
A hypothetical time-variation of the gravitational constant would make neutron stars expand or contract, so the matter in their interiors would depart from beta equilibrium. Th…
The hard to soft spectral transition in LMXBs - affected by recondensation of gas into an inner disk
E. Meyer-Hofmeister, B. F. Liu, F. Meyer
Soft and hard spectral states of X-ray transient sources reflect two modes of accretion, accretion via a geometrically thin, optically thick disk or an advection-dominated accretio…
Axisymmetric General Relativistic Simulations of the Accretion-Induced Collapse of White Dwarfs
E. B. Abdikamalov, C. D. Ott, L. Rezzolla +4
(Abridged.) The accretion-induced collapse (AIC) of a white dwarf (WD) may lead to the formation of a protoneutron star and a collapse-driven supernova explosion. This process repr…
Properties of Type II Plateau Supernova SNLS-04D2dc: Multicolor Light Curves of Shock Breakout and Plateau
N. Tominaga, S. Blinnikov, P. Baklanov +3
Shock breakout is the brightest radiative phenomenon in a Type II supernova (SN). Although it was predicted to be bright, the direct observation is difficult due to the short durat…
Quenching of the accretion disk strong aperiodic variability at the magnetospheric boundary
M. Revnivtsev, E. Churazov, K. Postnov +1
We study power density spectra (PDS) of X-ray flux variability in binary systems where the accretion flow is truncated by the magnetosphere. PDS of accreting X-ray pulsars where th…
X-ray emission from black-hole binaries
M. Gilfanov
The properties of X-ray emission from accreting black holes are reviewed. The contemporary observational picture and current status of theoretical understanding of accretion and fo…
MAGIC Gamma-ray Telescope Observation of the Perseus Cluster of Galaxies: implications for cosmic rays, dark matter, and NGC1275
The MAGIC Collaboration, J. Aleksić, L. A. Antonelli +152
The Perseus galaxy cluster was observed by the MAGIC Cherenkov telescope for a total effective time of 24.4 hr during 2008 November and December. The resulting upper limits on the…
Effect of the reverse shock on the parameters of the observed X-Ray emission during the 1998 outburst of CI Cam
E. V. Filippova, M. G. Revnivtsev, A. A. Lutovinov
Based on the model of interaction between spherically symmetrical expanding matter and the external medium, we have estimated the parameters of the matter heated by the shock that…
SN2003bg: a broad-lined Type IIb Supernova with Hydrogen
Paolo A. Mazzali, Jinsong Deng, Mario Hamuy +1
Models for the spectra and the light curve, in the photospheric as well as in the late nebular phase, are used to infer the properties of the very radio-bright, broad-lined type II…
Timing Characteristics of the Hard X-ray Emission from Bright X-ray Pulsars Based on INTEGRAL Data
A. A. Lutovinov, S. S. Tsygankov
We review the results of a timing analysis of the observations for ten bright X-ray pulsars (with fluxes >100 mCrab in the 20-100 keV energy band) that fell within the INTEGRAL fie…
Decay of the toroidal field in magnetically driven jets
R. Moll
A 3D simulation of a non-relativistic, magnetically driven jet propagating in a stratified atmosphere is presented, covering about three decades in distance and two decades in side…
Variable Sodium Absorption in a Low-Extinction Type Ia Supernova
Joshua D. Simon, Avishay Gal-Yam, Orly Gnat +18
Recent observations have revealed that some Type Ia supernovae exhibit narrow, time-variable Na I D absorption features. The origin of the absorbing material is controversial, but…
The Diversity of Type Ia Supernovae from Broken Symmetries
Daniel Kasen, Fritz Roepke, S. E. Woosley
Type Ia supernovae result when carbon-oxygen white dwarfs in binary systems accrete mass from companion stars, reach a critical mass, and explode. The near uniformity of their ligh…
Spectral analysis of the 91bg-like Type Ia SN 2005bl: Low luminosity, low velocities, incomplete burning
Stephan Hachinger, Paolo A. Mazzali, Stefan Taubenberger +2
The properties of underluminous type Ia supernovae (SNe Ia) of the 91bg subclass have yet to be theoretically understood. Here, we take a closer look at the structure of the dim SN…
Luminosity functions of LMXBs in Centaurus A: globular clusters versus the field
R. Voss, M. Gilfanov, G. R. Sivakoff +16
We study the X-ray luminosity function (XLF) of low mass X-ray binaries (LMXB) in the nearby early-type galaxy Centaurus A, concentrating primarily on two aspects of binary populat…
Time-dependent 3D spectrum synthesis for type Ia supernovae
M. Kromer, S. A. Sim
A Monte Carlo code (ARTIS) for modelling time-dependent three-dimensional spectral synthesis in chemically inhomogeneous models of Type Ia supernova ejecta is presented. Following…
3D non-LTE spectrum synthesis for Type Ia supernovae
M. Kromer, S. A. Sim, W. Hillebrandt
Despite the importance of Type Ia supernovae as standard candles for cosmology and to the chemical evolution of the Universe, we still have no consistent picture of the nature of t…
Spectropolarimetry of the Unique Type Ib Supernova 2005bf: Larger Asymmetry Revealed by Later-Phase Data
Masaomi Tanaka, Koji S. Kawabata, Keiichi Maeda +6
We present an optical spectropolarimetric observation of the unique Type Ib supernova (SN) 2005bf at 8 days after the second maximum. The data, combined with the polarization spect…
Nebular Phase Observations of the Type Ib Supernova 2008D/X-ray Transient 080109: Side-Viewed Bipolar Explosion
Masaomi Tanaka, Masayuki Yamanaka, Keiichi Maeda +11
We present optical spectroscopic and photometric observations of supernova (SN) 2008D, associated with the luminous X-ray transient 080109, at >300 days after the explosion (nebula…
Polytropic neutron star - black hole merger simulations with a Paczynski-Wiita potential
M. Ruffert, H. -Th. Janka
Context: Mergers of neutron stars (NS) and black holes (BH) are among the strongest sources of gravitational waves and are potential central engines for short gamma-ray bursts. Aim…