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

Discovery of a 30-d period in the supergiant fast X-ray transient SAX J1818.6?1703
Discovery of a 30-d period in the supergiant fast X-ray transient SAX J1818.6?1703
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.
gamma-rays: observations, x-rays: binaries, x-rays: individual: SAX J1818.6?1703
1745-3933
L11-L15
Bird, A.J.
045ee141-4720-46fd-a412-5aa848a91b32
Bazzano, A.
6895fd67-4936-4d13-b934-d34a1ff9fedb
Hill, A.B.
b1007941-b5b1-47cd-8476-7c6b9c57f347
McBride, V.A.
a4608811-5a3f-4218-ada0-28f57ec2a0fd
Sguera, V.
371bb568-7e56-496e-a624-dba6de79d9e1
Shaw, S.E.
65776027-991a-45ae-8338-e1c73909ce64
Watkins, H.J.
fb25318a-fc6a-4b07-963a-d5c27a533a97
Bird, A.J.
045ee141-4720-46fd-a412-5aa848a91b32
Bazzano, A.
6895fd67-4936-4d13-b934-d34a1ff9fedb
Hill, A.B.
b1007941-b5b1-47cd-8476-7c6b9c57f347
McBride, V.A.
a4608811-5a3f-4218-ada0-28f57ec2a0fd
Sguera, V.
371bb568-7e56-496e-a624-dba6de79d9e1
Shaw, S.E.
65776027-991a-45ae-8338-e1c73909ce64
Watkins, H.J.
fb25318a-fc6a-4b07-963a-d5c27a533a97

Bird, A.J., Bazzano, A., Hill, A.B., McBride, V.A., Sguera, V., Shaw, S.E. and Watkins, H.J. (2009) Discovery of a 30-d period in the supergiant fast X-ray transient SAX J1818.6?1703. Monthly Notices of the Royal Astronomical Society: Letters, 393 (1), L11-L15. (doi:10.1111/j.1745-3933.2008.00583.x).

Record type: Article

Abstract

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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Published date: February 2009
Keywords: gamma-rays: observations, x-rays: binaries, x-rays: individual: SAX J1818.6?1703
Organisations: Astronomy and Space Science

Identifiers

Local EPrints ID: 144787
URI: https://eprints.soton.ac.uk/id/eprint/144787
ISSN: 1745-3933
PURE UUID: 7c43ca58-2089-47ca-9bf7-e3ac110d1e95
ORCID for A.J. Bird: ORCID iD orcid.org/0000-0002-6888-8937
ORCID for A.B. Hill: ORCID iD orcid.org/0000-0003-3470-4834

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Date deposited: 24 May 2010 11:42
Last modified: 06 Jun 2018 13:10

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Contributors

Author: A.J. Bird ORCID iD
Author: A. Bazzano
Author: A.B. Hill ORCID iD
Author: V.A. McBride
Author: V. Sguera
Author: S.E. Shaw
Author: H.J. Watkins

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