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  A new template background estimate for source searching in TeV gamma-ray astronomy

Rowell, G. (2003). A new template background estimate for source searching in TeV gamma-ray astronomy. Astronomy & Astrophysics, 410(1), 389-396. doi:10.1051/0004-6361:20031194.

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 Urheber:
Rowell, Gavin1, Autor           
Affiliations:
1Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society, ou_904550              

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Schlagwörter: methods: data analysis -- gamma rays: observations
 Zusammenfassung: A new method is described that permits quickly and easily, a 2-dimensional search for TeV gamma-ray sources over large fields of view (~6°) with instruments utilising the imaging atmospheric Cerenkov technique. It employs as a background estimate, events normally rejected according to a cosmic-ray background rejection criterion based on image shape, but with reconstructed directions overlapping the source of interest. This so-called template background model is demonstrated using example data taken with the stereoscopic HEGRA System of Cerenkov Telescopes. Discussion includes comparisons with a conventional background estimate and limitations of the model. The template model is well suited to the search for point-like, moderately extended sources and combinations thereof, and compensates well for localised systematic changes in cosmic-ray background response.

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Sprache(n): eng - English
 Datum: 2003-10
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: eDoc: 56395
DOI: 10.1051/0004-6361:20031194
 Art des Abschluß: -

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Titel: Astronomy & Astrophysics
  Alternativer Titel : A & A
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 410 (1) Artikelnummer: - Start- / Endseite: 389 - 396 Identifikator: -