Open issues in Gamma-Ray Bursts: Polarimetry and dark GRBs

Malesani, D. and Covino, S. and Rossi, E. M. and Lazzati, D. and De Luca, A. and Filliatre, P. and Tagliaferri, G. (2005) Open issues in Gamma-Ray Bursts: Polarimetry and dark GRBs. Il nuovo cimento C, 28 (4\5). pp. 515-520. ISSN 1826-9885

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Abstract

Were view someop en problems in theph ysics of afterglows, namely their polarization properties and the existence of dark/faint bursts. Polarization studies yield precious insights in the physical structure and dynamical evolution of GRB jets, revealing their magnetization properties and their energy profile. Polarimetric observations of GRB020813 already allowed to exclude a homogeneous jet for this event. We then present observations of faint/dark bursts, showing that some of them may be obscured by dust, while others are possibly just intrinsically dim.

Item Type: Article
Additional Information: Paper presented at the “4th Workshop on Gamma-Ray Burst in the Afterglow Era”, Rome, October 18-22, 2004.
Uncontrolled Keywords: γ-ray surces; γ-ray bursts ; Radiation mechanisms; polarization
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 16 Mar 2020 16:54
Last Modified: 16 Mar 2020 16:54
URI: http://eprints.bice.rm.cnr.it/id/eprint/15755

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