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Proceedings Paper

Effect of soft flares on XMM-Newton EPIC-pn timing mode data
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Paper Abstract

The EPIC-pn CCD Camera on board the ESA X-ray observatory XMM-Newton is a very sensitive and versatile instrument with many observing modes. One of the modes, the timing mode, was designed so that a time resolution of 0.029 milliseconds can be achieved. This mode is important for observing bright variable sources with a very high time resolution. Up to now it has only been possible to use the spectra down to 300-400 eV in this mode. Below this energy the data appears to be affected by soft flares which are caused by stack overflows generated by high energy particles. We present a method that can be used to mitigate the effect these flares have on the data and discuss the improvement that this brings to the timing mode spectra. This new method will at last make it possible to get spectra down to the lowest energies detectable in this mode. This is particularly interesting for timing studies of isolated neutron stars and other variable objects, such as magnetic CVs, with very soft spectra.

Paper Details

Date Published: 3 February 2004
PDF: 8 pages
Proc. SPIE 5165, X-Ray and Gamma-Ray Instrumentation for Astronomy XIII, (3 February 2004); doi: 10.1117/12.506363
Show Author Affiliations
Vadim Burwitz, Max-Planck-Institut fuer extraterrestrische Physik (Germany)
Frank Haberl, Max-Planck-Institut fuer extraterrestrische Physik (Germany)
Michael J. Freyberg, Max-Planck-Institut fuer extraterrestrische Physik (Germany)
Konrad Dennerl, Max-Planck-Institut fuer extraterrestrische Physik (Germany)
Eckhard Kendziorra, Eberhard-Karls-Univ. Tuebingen (Germany)
Marcus G. F. Kirsch, European Space Agency (Spain)

Published in SPIE Proceedings Vol. 5165:
X-Ray and Gamma-Ray Instrumentation for Astronomy XIII
Kathryn A. Flanagan; Oswald H. W. Siegmund, Editor(s)

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