Flat-Fielding BATSE Occultation Data for use in a Hard X-Ray All Sky Survey

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dc.creatorShaw, S. E.
dc.creatorBird, A. J.
dc.creatorDean, A. J.
dc.creatorDiallo, N.
dc.creatorFerguson, C.
dc.creatorKnodlseder, J.
dc.creatorLockley, J. J.
dc.creatorWestmore, M. J.
dc.creatorWillis, D. R.
dc.date2001-01-03
dc.date.accessioned2026-07-07T01:57:14Z
dc.date.available2026-07-07T01:57:14Z
dc.descriptionThe BATSE mission aboard CGRO can be used to observe hard X-ray sources by using the Earth occultation method. This method relies on measuring a step in the count rate profile in each BATSE detector as a source rises above or sets below the Earth's limb. A major problem in determining the step sizes (and hence the flux) is in extracting the steps from the varying background. A technique for flat-fielding the response of gamma ray detectors has been developed at Southampton. The technique uses a dynamic Monte-Carlo model to simulate the dominant components of the gamma-ray background encountered by the experiment at any point in its orbit. A maximum likelihood imaging method is also being developed that will be used to make a sky survey with all 9 years of the BATSE Continuous data set in the 20 - 500 keV range. An all sky map of 25 - 35 keV emission has been made using 60 days of data and has a 3 sigma flux sensitivity of 14 mCrab.
dc.description4 pages, 2 figures, for publication in Proceedings of the 4th Integral Workshop, Alicante, Spain. Replacement to add authors, problem with A4 paper in esapub.cls
dc.identifierhttps://arxiv.org/abs/astro-ph/0101035
dc.identifierhttp://arxiv.org/abs/astro-ph/0101035
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/2308
dc.subjectAstrophysics
dc.titleFlat-Fielding BATSE Occultation Data for use in a Hard X-Ray All Sky Survey
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