Proto-Neutron Star Winds, Magnetar Birth, and Gamma-Ray Bursts

Details Proto-Neutron Star Winds, Magnetar Birth, and Gamma-Ray Bursts Proto-Neutron Star Winds, Magnetar Birth, and Gamma-Ray Bursts

2007-04-05

arxiv.org/abs/0704.0675v1

AIP Conf.Proc.937:521-525,2007

Astronomy and Astrophysics

Astrophysics

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

Scientific paper

10.1063/1.2803618

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.

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