Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-01-31
Phys.Rev.D69:104026,2004
Astronomy and Astrophysics
Astrophysics
7 pages, two figures, accepted for publication in PRD
Scientific paper
10.1103/PhysRevD.69.104026
Core-collapse in massive stars is believed to produce a rapidly spinning black hole surrounded by a compact disk or torus. This forms an energetic MeV-nucleus inside a remnant He-core, powered by black hole-spin energy. The output produces a GRB-supernova, while most of the energy released is in gravitational radiation. The intrinsic gravitational-wave spectrum is determined by multipole mass-moments in the torus. Quadrupole gravitational radiation is radiated at about twice the Keplerian frequency of the torus, which is non-axisymmetric when sufficiently slender, representing a ``{\em black hole-blob}" binary system or a "{\em blob-blob}" binary bound to the central black hole. We here discuss line-broadening in the observed spectrum due to Lense-Thirring precession, which modulates the orientation of the torus to the line-of-sight. This spectral feature is long-lived, due to weak damping of precessional motion. These events are believed to occur perhaps once per year within a distance of 100Mpc, which provides a candidate source for Advanced LIGO.
Kim Hongsu
Lee Chul H.
Lee Hyun Kyu
van Putten Maurice H. P. M.
No associations
LandOfFree
Line-broadening in gravitational radiation from gamma-ray burst-supernovae does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Line-broadening in gravitational radiation from gamma-ray burst-supernovae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Line-broadening in gravitational radiation from gamma-ray burst-supernovae will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-394719