Discovery of a 30 day period in the supergiant fast X-ray transient SAX J1818.6-1703

SAX J1818.6-1703 has been characterised as a Supergiant Fast X-ray Transient system on the basis of several INTEGRAL/IBIS detections since the original BeppoSAX Wide Field Camera detection. Using IBIS/ISGRI, Swift/BAT and archival observations, we show that in fact SAX J1818.6-1703 exhibits emission...

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Veröffentlicht in:	arXiv.org 2008-10
Hauptverfasser:	Bird, A J, Bazzano, A, Hill, A B, McBride, V A, Sguera, V, Shaw, S E, Watkins, H J
Format:	Artikel
Sprache:	eng
Schlagworte:	Field cameras Outbursts Physics - Astrophysics of Galaxies Physics - Cosmology and Nongalactic Astrophysics Physics - Earth and Planetary Astrophysics Physics - High Energy Astrophysical Phenomena Physics - Instrumentation and Methods for Astrophysics Physics - Solar and Stellar Astrophysics
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Beschreibung
Zusammenfassung:	SAX J1818.6-1703 has been characterised as a Supergiant Fast X-ray Transient system on the basis of several INTEGRAL/IBIS detections since the original BeppoSAX Wide Field Camera detection. Using IBIS/ISGRI, Swift/BAT and archival observations, we show that in fact SAX J1818.6-1703 exhibits emission on a period of 30 +/- 0.1 days, with a high degree of recurrence. SAX J1818.6-1703 is therefore the second SFXT shown to exhibit periodic outbursts, but with a considerably shorter period than the other known system, IGR J11215-5952.
ISSN:	2331-8422
DOI:	10.48550/arxiv.0810.5696