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Discovery of the orbital period in the supergiant fast X-ray transient IGR J17544-2619

Discovery of the orbital period in the supergiant fast X-ray transient IGR J17544-2619
Discovery of the orbital period in the supergiant fast X-ray transient IGR J17544-2619
The supergiant fast X-ray transient (SFXT) system IGR J17544?2619 has displayed many large outbursts in the past and is considered an archetypal example of SFXTs. A search of the INTEGRAL/ISGRI data archive from MJD 52698?54354 has revealed 11 outbursts and timing analysis of the light curve identifies a period of 4.926 ± 0.001 d which we interpret as the orbital period of the system. We find that large outbursts occasionally occur outside of periastron and place an upper limit for the radius of the supergiant of <23 R?.
gamma-rays: observations, x-rays: binaries, x-rays: individual: IGR J17544-2619
1745-3933
L113-L117
Clark, David J.
62688300-64b9-4e40-b65c-b68c59312361
Hill, Adam B.
b1007941-b5b1-47cd-8476-7c6b9c57f347
Bird, Anthony J.
045ee141-4720-46fd-a412-5aa848a91b32
McBride, Vanessa
a4608811-5a3f-4218-ada0-28f57ec2a0fd
Scaringi, Simone
88701970-a1b9-41fe-bf55-886716ee3374
Dean, Anthony J.
2f9093f2-855c-4769-b1aa-6dd621b5dcf1
Clark, David J.
62688300-64b9-4e40-b65c-b68c59312361
Hill, Adam B.
b1007941-b5b1-47cd-8476-7c6b9c57f347
Bird, Anthony J.
045ee141-4720-46fd-a412-5aa848a91b32
McBride, Vanessa
a4608811-5a3f-4218-ada0-28f57ec2a0fd
Scaringi, Simone
88701970-a1b9-41fe-bf55-886716ee3374
Dean, Anthony J.
2f9093f2-855c-4769-b1aa-6dd621b5dcf1

Clark, David J., Hill, Adam B., Bird, Anthony J., McBride, Vanessa, Scaringi, Simone and Dean, Anthony J. (2009) Discovery of the orbital period in the supergiant fast X-ray transient IGR J17544-2619. Monthly Notices of the Royal Astronomical Society: Letters, 399 (1), L113-L117. (doi:10.1111/j.1745-3933.2009.00737.x).

Record type: Article

Abstract

The supergiant fast X-ray transient (SFXT) system IGR J17544?2619 has displayed many large outbursts in the past and is considered an archetypal example of SFXTs. A search of the INTEGRAL/ISGRI data archive from MJD 52698?54354 has revealed 11 outbursts and timing analysis of the light curve identifies a period of 4.926 ± 0.001 d which we interpret as the orbital period of the system. We find that large outbursts occasionally occur outside of periastron and place an upper limit for the radius of the supergiant of <23 R?.

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More information

Published date: 4 September 2009
Keywords: gamma-rays: observations, x-rays: binaries, x-rays: individual: IGR J17544-2619

Identifiers

Local EPrints ID: 144773
URI: http://eprints.soton.ac.uk/id/eprint/144773
ISSN: 1745-3933
PURE UUID: e759ad8c-e102-4a35-8154-347d0b67f152
ORCID for Adam B. Hill: ORCID iD orcid.org/0000-0003-3470-4834
ORCID for Anthony J. Bird: ORCID iD orcid.org/0000-0002-6888-8937

Catalogue record

Date deposited: 24 May 2010 12:19
Last modified: 09 Nov 2021 03:08

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Contributors

Author: David J. Clark
Author: Adam B. Hill ORCID iD
Author: Anthony J. Bird ORCID iD
Author: Vanessa McBride
Author: Simone Scaringi
Author: Anthony J. Dean

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