Polarization Evolution of the GRB 020405 Afterglow

Preprint

12 November 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/0211245

Abstract

Polarization measurements for the optical counterpart to GRB 020405 are presented and discussed. Our observations were performed with the VLT-UT3 (Melipal) during the second and third night after the gamma-ray burst discovery. The polarization degree (and the position angle) appears to be constant between our two observations at a level around (1.5 - 2)%. The polarization can be intrinsic but it is not possible to unambiguously exclude that a substantial fraction of it is induced by dust in the host galaxy.

Keywords

POLARIZATION MEASUREMENTS
AFTERGLOW POLARIZATION
POLARIZATION EVOLUTION
OPTICAL COUNTERPART
GALAXY
DUST
GRB

All Related Versions

Version 1, 2002-11-12, ArXiv
Published version: Astronomy & Astrophysics, 400 (1), L9.

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