VLBI observations of GRB afterglows

被引：4

作者：

Taylor, GB ^{[1
]}

Beasley, AJ

Frail, DA

Kulkarni, SR

Reynolds, JE

机构：

[1] Natl Radio Astron Observ, Socorro, NM 87801 USA

[2] CALTECH, Div Phys Math & Astron 105 24, Pasadena, CA 91125 USA

[3] CSIRO, Australia Telescope Natl Facil, Epping, NSW 2121, Australia

来源：

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 1999年 / 138卷 / 03期

关键词：

gamma-ray bursts; technique : interferometry astrometry;

D O I：

10.1051/aas:1999301

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Once the afterglow from a GRB has been detected in the radio, Very Long Baseline Interferometry (VLBI) observations can provide a resolution of 1 milliarcsecond or better and absolute astrometry at a similar level. We will review the VLBI programs carried out to date which include observations of G970508. G980329, G980425, and G980703. All of these objects are found to be very compact (size < 1 mas) even months after the burst. This is consistent with the predictions of fireball models. Our ultimate goal is a direct measurement of the morphology and expansion of a GRB afterglow.

引用

页码：445 / 446

页数：2

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