output
19932026
Showing 2012 · astro-ph.HEShow all

9 papers · 2 filters

astro-ph.HE2012★ 47 cited

Flame Propagation on the Surfaces of Rapidly Rotating Neutron Stars during Type I X-ray Bursts

Yuri Cavecchi, Anna L. Watts, Jonathan Braithwaite +1

We present the first vertically resolved hydrodynamic simulations of a laterally propagating, deflagrating flame in the thin helium ocean of a rotating accreting neutron star. We u…

astro-ph.HE2012★ 158 cited

Chandra-HETGS Observations of the Brightest Flare Seen from Sgr A*

M. A. Nowak, J. Neilsen, S. B. Markoff +10

Starting in 2012, we began an unprecedented observational program focused on the supermassive black hole in the center of our Galaxy, Sgr A*, utilizing the High Energy Transmission…

astro-ph.HE2012★ 318 cited

Supernova Type Ia progenitors from merging double white dwarfs: Using a new population synthesis model

Silvia Toonen, Gijs Nelemans, Simon Portegies Zwart

The study of Type Ia supernovae (SNIa) has lead to greatly improved insights into many fields in astrophysics, however a theoretical explanation of the origin of these events is st…

astro-ph.HE2012★ 110 cited

Wide-band Simultaneous Observations of Pulsars: Disentangling Dispersion Measure and Profile Variations

T. E. Hassall, B. W. Stappers, J. W. T. Hessels +91

Dispersion in the interstellar medium is a well known phenomenon that follows a simple relationship, which has been used to predict the time delay of dispersed radio pulses since t…

astro-ph.HE2012★ 48 cited

A First Search for coincident Gravitational Waves and High Energy Neutrinos using LIGO, Virgo and ANTARES data from 2007

The ANTARES Collaboration, the LIGO Scientific Collaboration, the Virgo Collaboration +959

We present the results of the first search for gravitational wave bursts associated with high energy neutrinos. Together, these messengers could reveal new, hidden sources that are…

astro-ph.HE2012★ 56 cited

On the dynamics of mechanical failures in magnetized neutron-star crusts

Yuri Levin, Maxim Lyutikov

We consider the dynamics of a mechanical failure induced by a shear stress in a strongly magnetized neutron-star crust. We show that even if the elastic properties of the crust all…

astro-ph.HE2012★ 12 cited

Tidal torque induced by orbital decay in compact object binaries

Simone Dall'Osso, Elena M. Rossi

As we observe in the moon-earth system, tidal interactions in binary systems can lead to angular momentum exchange. The presence of viscosity is generally regarded as the condition…

astro-ph.HE2012★ 44 cited

Ejection and Capture Dynamics in Restricted Three-Body Encounters

Shiho Kobayashi, Yanir Hainick, Re'em Sari +1

We study the tidal disruption of binaries by a massive point mass (e.g. the black hole at the Galactic center), and we discuss how the ejection and capture preference between unequ…

astro-ph.HE2012★ 83 cited

Evidence for extended gamma-ray emission from galaxy clusters

Jiaxin Han, Carlos S. Frenk, Vincent R. Eke +2

We report evidence for extended gamma-ray emission from the Virgo, Fornax and Coma clusters based on a maximum-likelihood analysis of the 3-year Fermi-LAT data. For all three clust…