How loud are neutron star mergers?
نویسندگان
چکیده
Sebastiano Bernuzzi, David Radice, Christian D. Ott, Luke F. Roberts, Philipp Mösta, and Filippo Galeazzi DiFeST, University of Parma, and INFN, I-43124 Parma, Italy TAPIR, Walter Burke Institute for Theoretical Physics, California Institute of Technology, 1200 E California Boulevard, Pasadena, California 91125, USA Yukawa Institute for Theoretical Physics, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-Ku, Kyoto 606-8502, Japan Department of Astronomy, University of California at Berkeley, 501 Campbell Hall 3411, Berkeley, California 94720, USA Institut für Theoretische Physik, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany (Received 23 December 2015; published 11 July 2016)
منابع مشابه
Relativistic SPH Calculations of Compact Binary Mergers
We review recent progress in understanding the hydrodynamics of compact binary mergers using relativistic smoothed particle hydrodynamics (SPH) codes. Recent results are discussed for both double neutron stars and black hole – neutron star binaries. The gravitational wave signals from these mergers contain a lot of information about the masses and radii of the stars and the equation of state of...
متن کاملThe Lowest-mass Stellar Black Holes: Catastrophic Death of Neutron Stars in Gamma-ray Bursts
Mergers of double neutron stars are considered the most likely progenitors for short gamma-ray bursts. Indeed such a merger can produce a black hole with a transient accreting torus of nuclear matter (Lee & Ramirez-Ruiz 2007, Oechslin & Janka 2006), and the conversion of a fraction of the torus mass-energy to radiation can power a gamma-ray burst (Nakar 2006). Using available binary pulsar obse...
متن کاملContribution of High–mass Black Holes to Mergers of Compact Binaries
We consider the merging of high-mass black-hole binaries of the Cyg X–1 type, in which the O–star companion becomes a neutron star following a supernova explosion. Our estimated rate of mergers, ∼ 2× 10yr for the Galaxy, is relatively low because of the paucity of high–mass black holes. None the less, because of their high masses, these black-hole, neutron-star binaries could contribute importa...
متن کاملNeutron star mergers versus core-collapse supernovae as dominant r-process sites in the early Galaxy
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 the range 8 − 10M⊙), highermass core-collapse supernovae (with masses ≥ 20M⊙) and neutron star mergers. In this work, we present a detailed inhomogeneous chemical evolution study that considers for the first time neu...
متن کاملTransient Events from Neutron Star Mergers
Mergers of neutron stars (NS+NS) or neutron stars and stellar mass black holes (NS+BH) eject a small fraction of matter with a sub-relativistic velocity. Upon rapid decompression nuclear density medium condenses into neutron rich nuclei, most of them radioactive. Radioactivity provides a long term heat source for the expanding envelope. A brief transient has the peak luminosity in the supernova...
متن کامل