Title of article
The Strongly Polarized Afterglow of GRB 020405
Author/Authors
Jha، S. نويسنده , , Bower، R. G. نويسنده , , Garnavich، P. M. نويسنده , , Bersier، D. نويسنده , , Stanek، K. Z. نويسنده , , Holland، S. T. نويسنده , , McLeod، B. نويسنده , , Holman، M. J. نويسنده , , Grav، T. نويسنده , , Quinn، J. نويسنده , , Kaluzny، J. نويسنده , , Challis، P. M. نويسنده , , Wilman، D. J. نويسنده , , Heyl، J. S. نويسنده , , Hradecky، V. نويسنده ,
Issue Information
روزنامه با شماره پیاپی 2 سال 2003
Pages
-62
From page
63
To page
0
Abstract
We report polarization measurements and photometry for the optical afterglow of the gamma-ray burst GRB 020405. We measured a highly significant 9.9% polarization (in V band) 1.3 days after the burst and argue that it is intrinsic to the GRB. The light-curve decay is well fitted by a t^-1.72 power law; we do not see any evidence for a break between 1.24 and 4.3 days after the burst. We discuss these measurements in the light of several models of GRB afterglows.
Keywords
nuclei , quasars: general , high-redshift , galaxies: active , black hole physics , galaxies
Journal title
Astrophysical Journal
Serial Year
2003
Journal title
Astrophysical Journal
Record number
73924
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