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  Characterization of the particle-induced background of XMM-Newton EPIC-pn: Short- and long-term variability

Bulbul, E., Kraft, R., Nulsen, P., Freyberg, M., Miller, E. D., Grant, C., et al. (2020). Characterization of the particle-induced background of XMM-Newton EPIC-pn: Short- and long-term variability. The Astrophysical Journal, 891(1): 13. doi:10.3847/1538-4357/ab698a.

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Characterization of the Particle-induced Background of XMM-Newton EPIC-pn Short- and Long-term Variability.pdf (beliebiger Volltext), 2MB
 
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Bulbul, Esra, Autor
Kraft, Ralph, Autor
Nulsen, Paul, Autor
Freyberg, Michael1, Autor           
Miller, Eric D., Autor
Grant, Catherine, Autor
Bautz, Mark W., Autor
Burrows, David N., Autor
Allen, Steven, Autor
Eraerds, Tanja1, Autor           
Fioretti, Valentina, Autor
Gastaldello, Fabio, Autor
Ghirardini, Vittorio, Autor
Hall, David, Autor
Meidinger, Norbert1, Autor           
Molendi, Silvano, Autor
Rau, Arne1, Autor           
Wilkins, Dan, Autor
Wilms, Joern, Autor
Affiliations:
1High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society, ou_159890              

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 Zusammenfassung: The particle-induced background of X-ray observatories is produced by galactic cosmic ray (GCR) primary protons, electrons, and He ions. Events due to direct interaction with the detector are usually removed by onboard processing. The interactions of these primary particles with the detector environment produce secondary particles that mimic X-ray events from celestial sources, and are much more difficult to identify. The filter-wheel closed data from the XMM-Newton EPIC-pn camera in small window mode (SWM) contains both the X-ray-like background events, and the events due to direct interactions with the primary particles. From this data, we demonstrate that X-ray-like background events are spatially correlated with the primary particle interaction. This result can be used to further characterize and reduce the non-X-ray background in silicon-based X-ray detectors in current and future missions. We also show that spectrum and pattern fractions of secondary particle events are different from those produced by cosmic X-rays.

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 Datum: 2020-02-27
 Publikationsstatus: Online veröffentlicht
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 Identifikatoren: DOI: 10.3847/1538-4357/ab698a
Anderer: LOCALID: 3244945
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Titel: The Astrophysical Journal
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Bristol; Vienna : IOP Publishing; IAEA
Seiten: - Band / Heft: 891 (1) Artikelnummer: 13 Start- / Endseite: - Identifikator: ISSN: 0004-637X
CoNE: https://pure.mpg.de/cone/journals/resource/954922828215_3