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The INTEGRAL IBIS/ISGRI System Point Spread Function and Source Location Accuracy

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The INTEGRAL IBIS/ISGRI System Point Spread Function and Source Location Accuracy

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dc.contributor.author Gros, A.
dc.contributor.author Goldwurm, A.
dc.contributor.author Cadolle-Bel, M.
dc.contributor.author Goldoni, P.
dc.contributor.author Rodriguez, J.
dc.contributor.author Foschini, L.
dc.contributor.author Del Santo, M.
dc.contributor.author Blay Serrano, Pedro Jose
dc.date.accessioned 2010-08-10T10:48:36Z
dc.date.available 2010-08-10T10:48:36Z
dc.date.issued 2003
dc.identifier.uri http://hdl.handle.net/10550/16803
dc.description.abstract The imager on board INTEGRAL (IBIS) presently provides the most detailed sky images ever obtained at energies above 30 keV. The telescope is based on a coded aperture imaging system which allows to obtain sky images in a large field of view (29ºx29º ) with an angular resolution of 12' . The System Point Spread Function of the telescope and its detailed characteristics are here described along with the specific analysis algorithms used to derive the accurate point-like source locations. The derived location accuracy is studied using the first in-flight calibration data on strong sources for the IBIS/ISGRI system. The dependence of the calibrated location accuracy with the signal to noise ratio of the sources is presented. These preliminary studies demonstrate that the IBIS/ISGRI telescope and the standard scientific analysis software allow source localizations with accuracy at 90% confidence level better than 10 for sources with signal to noise ratios >30 over the whole field of view, in agreement with the expected performances of the instrument. en
dc.language.iso en en
dc.relation http://www.aanda.org/articles/aa/pdf/2003/43/aaINTEGRAL65.pdf en
dc.source GROS, A. ; Goldwurm, A. ; Cadolle-Bel, M. ; Goldoni, P. ; Rodriguez, J. ; Foschini, L. ; Del Santo, M. ; Blay Serrano, Pedro Jose, 2003, The INTEGRAL IBIS/ISGRI System Point Spread Function and Source Location Accuracy, Astronomy and Astrophysics, vol. 411, no. 1, p. L179-L183 en
dc.subject Data analysis ; Image processing ; High angular resolution en
dc.title The INTEGRAL IBIS/ISGRI System Point Spread Function and Source Location Accuracy en
dc.type info:eu-repo/semantics/article en
dc.type info:eu-repo/semantics/publishedVersion en
dc.subject.unesco UNESCO::ASTRONOMÍA Y ASTROFÍSICA en
dc.subject.unesco UNESCO::ASTRONOMÍA Y ASTROFÍSICA::Astronomía óptica en
dc.identifier.doi 10.1051/0004-6361:20031584 en
dc.description.private Blay Serrano, Pedro Jose, Pere.Blay@uv.es en
dc.identifier.idgrec 006165 en
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