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An X-ray and optical study of the new SMC X-ray binary pulsar system SXP7.92 and its probable optical counterpart, AzV285

An X-ray and optical study of the new SMC X-ray binary pulsar system SXP7.92 and its probable optical counterpart, AzV285
An X-ray and optical study of the new SMC X-ray binary pulsar system SXP7.92 and its probable optical counterpart, AzV285
Optical and X-ray observations are presented here of a newly reported X-ray transient system in the Small Magellanic Cloud - SXP7.92. A detailed analysis of the X-ray data reveal a coherent period of 7.9s. A search through earlier X-ray observations of the SMC reveal a previously unknown earlier detection of this system. Follow-up X-ray observations identified a new transient source within the error circle of the previous observations. An optical counterpart, AzV285, is proposed which reveals clear evidence for a 36.8d binary period.
stars: neutron, x-rays: binaries
1365-2966
2191-2196
Coe, M.J.
04dfb23b-1456-46a3-9242-5cee983471d5
Schurch, M.
00edd2ab-bc59-4c85-abec-c2d7341e06e5
McBride, V.A.
36106df1-eae1-4eff-974e-2aba84523b85
Corbet, R.H.D.
7d365a78-a577-4f56-8d3a-503b7fccb42b
Townsend, L.J.
383d1487-54d3-4912-82d3-1cc3b4b28d5e
Udalski, A.
a7d3b194-1531-47cd-a634-abe3b8b067b0
Galache, J.L.
f4b15a28-e3a7-49bb-9000-4e75df9d93ad
Coe, M.J.
04dfb23b-1456-46a3-9242-5cee983471d5
Schurch, M.
00edd2ab-bc59-4c85-abec-c2d7341e06e5
McBride, V.A.
36106df1-eae1-4eff-974e-2aba84523b85
Corbet, R.H.D.
7d365a78-a577-4f56-8d3a-503b7fccb42b
Townsend, L.J.
383d1487-54d3-4912-82d3-1cc3b4b28d5e
Udalski, A.
a7d3b194-1531-47cd-a634-abe3b8b067b0
Galache, J.L.
f4b15a28-e3a7-49bb-9000-4e75df9d93ad

Coe, M.J., Schurch, M., McBride, V.A., Corbet, R.H.D., Townsend, L.J., Udalski, A. and Galache, J.L. (2009) An X-ray and optical study of the new SMC X-ray binary pulsar system SXP7.92 and its probable optical counterpart, AzV285. Monthly Notices of the Royal Astronomical Society, 394 (4), 2191-2196. (doi:10.1111/j.1365-2966.2009.14501.x).

Record type: Article

Abstract

Optical and X-ray observations are presented here of a newly reported X-ray transient system in the Small Magellanic Cloud - SXP7.92. A detailed analysis of the X-ray data reveal a coherent period of 7.9s. A search through earlier X-ray observations of the SMC reveal a previously unknown earlier detection of this system. Follow-up X-ray observations identified a new transient source within the error circle of the previous observations. An optical counterpart, AzV285, is proposed which reveals clear evidence for a 36.8d binary period.

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More information

Published date: 12 March 2009
Keywords: stars: neutron, x-rays: binaries
Organisations: University of Southampton

Identifiers

Local EPrints ID: 143563
URI: http://eprints.soton.ac.uk/id/eprint/143563
ISSN: 1365-2966
PURE UUID: caaac8a5-26f4-4b74-b9ef-b34387b91170
ORCID for M.J. Coe: ORCID iD orcid.org/0000-0002-0763-8547

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Date deposited: 12 Apr 2010 12:29
Last modified: 14 Mar 2024 02:32

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Contributors

Author: M.J. Coe ORCID iD
Author: M. Schurch
Author: V.A. McBride
Author: R.H.D. Corbet
Author: L.J. Townsend
Author: A. Udalski
Author: J.L. Galache

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