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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, Published 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
2008.
Series
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
Identifiers
URN: urn:nbn:se:kth:diva-152187Scopus ID: 2-s2.0-84883647087OAI: oai:DiVA.org:kth-152187DiVA: diva2:750747
Conference
7th INTEGRAL Workshop - An INTEGRAL View of Compact Objects, INTEGRAL 2008, 8-11 September 2008, Copenhagen, Denmark
Note

QC 20140930

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

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