SIMBAD references

2018ApJ...867...52X - Astrophys. J., 867, 52-52 (2018/November-1)

Prompt emission of gamma-ray bursts from the wind of newborn millisecond magnetars: a case study of GRB 160804A.

XIAO D., PENG Z.-K., ZHANG B.-B. and DAI Z.-G.

Abstract (from CDS):

In this paper, we revisit the scenario that an internal gradual magnetic dissipation taking place within the wind from a newborn millisecond magnetar can be responsible for gamma-ray burst (GRB) production. We show that a combination of two emission components in this model, i.e., the photospheric emission from the wind and the synchrotron radiation within the magnetic reconnection region, can give a reasonable fit to the observed spectrum of the prompt emission phase of GRB 160804A. We obtain the physical parameters through a Monte Carlo procedure and deduce the initial spin period and magnetic field of the central magnetar. Furthermore, the independent afterglow fitting analysis gives a consistent result, adding great credibility to this scenario. In addition, we predict a subclass of GRBs from such Magnetar wind Internal Gradual MAgnetic Dissipation (abbreviated as "MIGMAD bursts") that have several distinctive properties.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): gamma-ray burst: general - radiation mechanisms: non-thermal

Simbad objects: 5

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