Discovery of a 30 day period in the supergiant fast X-ray transient SAX J1818.6-1703
arXiv:0810.5696 · doi:10.1111/j.1745-3933.2008.00583.x
Abstract
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.
5 pages, 5 figures, 2 tables. Accepted for publication in MNRAS letters
References in corpus (7)
- Unveiling supergiant fast X-ray transient sources with INTEGRAL
- Probing clumpy stellar winds with a neutron star
- An alternative hypothesis for the outburst mechanism in Supergiant Fast X-ray Transients: the case of IGR J11215-5952
- Unveiling the nature of INTEGRAL objects through optical spectroscopy. VI. A multi-observatory identification campaign
- IGR J18483-0311: an accreting X-ray pulsar observed by INTEGRAL
- IGR J11215-5952: a hard X-ray transient displaying recurrent outbursts
- Hard X-ray flares in IGR J08408-4503 unveil clumpy stellar winds
Cited by in corpus (5)
- Towards a unified view of inhomogeneous stellar winds in isolated supergiant stars and supergiant high mass X-ray binaries
- Advances in Understanding High-Mass X-ray Binaries with INTEGRAL and Future Directions
- The first broad-band X-ray study of the Supergiant Fast X-ray Transient SAXJ1818.6-1703 in outburst
- The 100-month Swift catalogue of supergiant fast X-ray transients II. SFXT diagnostics from outburst properties
- Temporal Studies of Supergiant Fast X-ray Transients