SIMBAD references

2015ApJ...806...15Z - Astrophys. J., 806, 15 (2015/June-2)

An analysis of Chandra deep follow-up gamma-ray bursts: implications for off-axis jets.

ZHANG B.-B., VAN EERTEN H., BURROWS D.N., RYAN G.S., EVANS P.A., RACUSIN J.L., TROJA E. and MacFADYEN A.

Abstract (from CDS):

We present a sample of 27 gamma-ray bursts (GRBs) with detailed Swift light curves supplemented by late-time Chandra observations. To answer the missing jet-break problem in general, we develop a numerical-simulation-based model that can be directly fit to the data using Monte Carlo methods. Our numerical model takes into account all the factors that can shape a jet break: (i) lateral expansion, (ii) edge effects, and (iii) off-axis effects. Our results provide improved fits to the light curves and constraints on physical parameters. More importantly, our results suggest that off-axis effects are important and must be included in interpretations of GRB jet breaks.

Abstract Copyright:

Journal keyword(s): gamma-ray burst: general - methods: numerical

Simbad objects: 53

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2020.02.21-08:30:57

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