Improved JEM-X imaging

Niels Lund; Niels Jørgen Stenfeldt Westergaard; Jérôme Chenevez; Søren Brandt

Improved JEM-X imaging

Niels Lund, Niels Jørgen Stenfeldt Westergaard, Jérôme Chenevez, Søren Brandt

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Abstract

A new imaging method has been developed for JEM-X. The flux from each sky pixel is obtained from a fit to the observed shadowgram rather than from a back projected image. The fitting method is more direct than the standard back projection method used in the public OSA software and allows better possibilities for elimination of systematic image artifacts. An improvement of more than a factor two for the signal-to-noise of weak sources in mosaic images has been obtained
at low energies near strong sources.

Original language	English
Journal	P o S - Proceedings of Science
Number of pages	5
ISSN	1824-8039
Publication status	Published - 2010
Event	8th INTEGRAL Workshop : The Restless Gamma-ray Universe - Dublin, Ireland Duration: 27 Sept 2010 → 30 Sept 2010 http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=115.

Conference

Conference	8th INTEGRAL Workshop
Country/Territory	Ireland
City	Dublin
Period	27/09/2010 → 30/09/2010
Internet address	http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=115.

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title = "Improved JEM-X imaging",

abstract = "A new imaging method has been developed for JEM-X. The flux from each sky pixel is obtained from a fit to the observed shadowgram rather than from a back projected image. The fitting method is more direct than the standard back projection method used in the public OSA software and allows better possibilities for elimination of systematic image artifacts. An improvement of more than a factor two for the signal-to-noise of weak sources in mosaic images has been obtainedat low energies near strong sources.",

author = "Niels Lund and Westergaard, {Niels J{\o}rgen Stenfeldt} and J{\'e}r{\^o}me Chenevez and S{\o}ren Brandt",

year = "2010",

language = "English",

journal = "P o S - Proceedings of Science",

issn = "1824-8039",

publisher = "SISSA",

note = "8th INTEGRAL Workshop : The Restless Gamma-ray Universe ; Conference date: 27-09-2010 Through 30-09-2010",

url = "http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=115.",

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TY - JOUR

T1 - Improved JEM-X imaging

AU - Lund, Niels

AU - Westergaard, Niels Jørgen Stenfeldt

AU - Chenevez, Jérôme

AU - Brandt, Søren

PY - 2010

Y1 - 2010

N2 - A new imaging method has been developed for JEM-X. The flux from each sky pixel is obtained from a fit to the observed shadowgram rather than from a back projected image. The fitting method is more direct than the standard back projection method used in the public OSA software and allows better possibilities for elimination of systematic image artifacts. An improvement of more than a factor two for the signal-to-noise of weak sources in mosaic images has been obtainedat low energies near strong sources.

AB - A new imaging method has been developed for JEM-X. The flux from each sky pixel is obtained from a fit to the observed shadowgram rather than from a back projected image. The fitting method is more direct than the standard back projection method used in the public OSA software and allows better possibilities for elimination of systematic image artifacts. An improvement of more than a factor two for the signal-to-noise of weak sources in mosaic images has been obtainedat low energies near strong sources.

M3 - Journal article

SN - 1824-8039

JO - P o S - Proceedings of Science

JF - P o S - Proceedings of Science

T2 - 8th INTEGRAL Workshop

Y2 - 27 September 2010 through 30 September 2010

ER -

Improved JEM-X imaging

Abstract

Conference

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