2004A&A...420..899K


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.03CET11:13:42

2004A&A...420..899K - Astronomy and Astrophysics, volume 420, 899-903 (2004/6-4)

Prospects for multiwavelength polarization observations of GRB afterglows and the case GRB 030329.

KLOSE S., PALAZZI E., MASETTI N., STECKLUM B., GREINER J., HARTMANN D.H. and SCHMID H.M.

Abstract (from CDS):

We explore the prospects for simultaneous, broad-band, multiwavelength polarimetric observations of GRB afterglows. We focus on the role of cosmic dust in GRB host galaxies on the observed percentage polarization of afterglows in the optical/near-infrared bands as a function of redshift. Our driving point is the afterglow of GRB 030329, for which we obtained polarimetric data in the R band and K band simultaneously ∼1.5-days after the burst. We argue that polarimetric observations can be very sensitive to dust in a GRB host, because dust can render the polarization of an afterglow wavelength-dependent. We discuss the consequences for the interpretation of observational data and emphasize the important role of very early polarimetric follow-up observations in all bands, when afterglows are still bright, to study the physical properties of dust and magnetic fields in high-z galaxies.

Abstract Copyright:

Journal keyword(s): gamma rays: bursts - polarization - dust - extinction

Simbad objects: 2

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Number of rows : 2

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 GRB 021004 gB 00 26 54.68 +18 55 41.6           ~ 518 0
2 SN 2003dh SN* 10 44 50.030 +21 31 18.15     16.2     SNIcpec 1130 1

    Equat.    Gal    SGal    Ecl

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2021.03.03-11:13:42

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