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INTEGRAL detection and follow-up observations of GRBs 080414 and 080603
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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2008 (English)In: Proc. Sci., 2008Conference paper (Refereed)
Abstract [en]

INTEGRAL detected GRB 080414 during an open time observation of the Galactic disk. The long (duration ∼10 s) GRB occurred at an off-axis angle of 11.5 degrees with a peak 20-200 keV flux of 1 ph cm-2 s -1 as reported by [1]. The Watcher robotic telescope started observations of GRB 080414 33 sec post GCN trigger. Initial analysis of the first images shows no new source down to 14 magnitude [2]. The burst location was coincidentally very close (30 arcminutes) to XTE J1810-189, which was active at the time. A common origin has been ruled out. GRB 080603 was detected by INTEGRAL during the Key Programme Observation of the North Ecliptic Pole. The burst occurred at about 3 degrees off-axis with a peak 20-200 keV flux of 0.5 ph cm-2 s-1 [3] and a fluence over the same energy range of ∼10-6 erg cm-2. The GRB was within the JEM-X field of view and is well detected between 3 and 35 keV, with a lightcurve consisting of 2 main pulses of emission. Detailed spectral and temporal analyses of the γ-ray emission from both bursts, along with the X-ray characteristics of GRB 080603 and the results of the search for an optical afterglow of GRB 080414 in the Watcher data are presented.

Place, publisher, year, edition, pages
, Proceedings of Science, ISSN 1824-8039
Keyword [en]
Field of views, Galactic disks, Integral detection, Off-axis angles, Optical afterglow, Robotic telescope, Temporal analysis, X-ray characteristics
National Category
Astronomy, Astrophysics and Cosmology
URN: urn:nbn:se:kth:diva-152187ScopusID: 2-s2.0-84883647087OAI: diva2:750747
7th INTEGRAL Workshop - An INTEGRAL View of Compact Objects, INTEGRAL 2008, 8-11 September 2008, Copenhagen, Denmark

QC 20140930

Available from: 2014-09-30 Created: 2014-09-23 Last updated: 2014-09-30Bibliographically approved

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