Metzger 2007 磁星诞生时可产生伽玛暴

主要内容:
通过磁星的旋转、星风的强度，推但磁星诞生时产生的外流可与伽玛暴相比。

精彩摘抄:


文章信息:
Proto-Neutron Star Winds, Magnetar Birth, and Gamma-Ray Bursts

Authors: B.D. Metzger, T.A. Thompson, E. Quataert

(Submitted on 5 Apr 2007)

Abstract: We begin by reviewing the theory of thermal, neutrino-driven proto-neutron star (PNS) winds. Including the effects of magnetic fields and rotation, we then derive the mass and energy loss from magnetically-driven PNS winds for both relativistic and non-relativistic outflows, including important multi-dimensional considerations. With these simple analytic scalings we argue that proto-magnetars born with ~ millisecond rotation periods produce relativistic winds just a few seconds after core collapse with luminosities, timescales, mass-loading, and internal shock efficiencies favorable for producing long-duration gamma-ray bursts.

Comments:

5 pages; to appear in the AIP conference proceedings of "Supernova 1987A: 20 Years After - Supernovae and Gamma-Ray Bursters", February 19-23, 2007, Aspen, Colorado

Subjects:

Astrophysics (astro-ph)

Cite as:

arXiv:0704.0675v1 [astro-ph]