Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 393, Issue 1, Pages L11-L15Publisher
OXFORD UNIV PRESS
DOI: 10.1111/j.1745-3933.2008.00583.x
Keywords
gamma-rays: observations; X-rays: binaries; X-rays: individual: SAX J1818.6-1703
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Funding
- ASIINAF [I/023/05/0, I/088/06/0]
- STFC [GR/2002/00446]
- Science and Technology Facilities Council [PP/D001013/1] Funding Source: researchfish
- STFC [PP/D001013/1] Funding Source: UKRI
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SAX J1818.6-1703 has been characterized 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 d, with a high degree of recurrence. SAX J1818.6-1703 is therefore the second supergiant fast X-ray transient shown to exhibit periodic outbursts, but with a considerably shorter period than the other known system, IGR J11215-5952.
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