Janiuk 2009 旋转黑洞的磁场注入能量

主要内容:
关键词：旋转黑洞，磁场，不稳定性，中微子
没能快速提炼出中心思想

精彩摘抄:


文章信息:

· Find Similar Abstracts (with default settings below)

· Electronic Refereed Journal Article (HTML)

· Full Refereed Journal Article (PDF/Postscript)

· arXiv e-print (arXiv:0911.0395)

· References in the article

· Citations to the Article (3) (Citation History)

· Refereed Citations to the Article

· Also-Read Articles (Reads History)

·

· Translate This Page

Title:		The role of black hole spin and magnetic field threading the unstable neutrino disk in gamma ray bursts
Authors:		Janiuk, A.; Yuan, Y.-F.
Affiliation:		AA(Copernicus Astronomical Center, Polish Academy of Sciences, ul. Bartycka 18, 00-716 Warsaw, Poland agnes@camk.edu.pl), AB(Key Laboratory for Research in Galaxies and Cosmology, University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230026,PR China yfyuan@ustc.edu.cn)
Publication:		Astronomy and Astrophysics, Volume 509, id.A55 (A&A Homepage)
Publication Date:		01/2010
Origin:		EDP Sciences
Keywords:		stars: gamma-ray bursts: general, black holes physics, accretion, accretion disks, neutrinos, instabilities, magnetic fields
DOI:		10.1051/0004-6361/200912725
Bibliographic Code:		2010A&A...509A..55J

Abstract

Aims: We report on the third phase of our study of the neutrino-cooled hyperaccreting torus around a black hole that powers the jet in gamma ray bursts. We focus on the influence of the black hole spin on the properties of the torus.
Methods: The structure of a stationary torus around the Kerr black hole is solved numerically. We take into account the detailed treatment of the microphysics in the nuclear equation of state that includes the neutrino trapping effect.
Results: We find that in the case of rapidly rotating black holes, the thermal instability discussed in our previous work is enhanced and is developed for much lower accretion rates. We also find the important role of the energy transfer from the rotating black hole to the torus via the magnetic coupling.

---

Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)