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The chandra small magellanic cloud wing survey - the search for X-ray binaries

The chandra small magellanic cloud wing survey - the search for X-ray binaries
The chandra small magellanic cloud wing survey - the search for X-ray binaries
We have detected 523 sources in a survey of the Small Magellanic Cloud (SMC) Wing with Chandra. By cross-correlating the X-ray data with optical and near-infrared catalogues, we have found 300 matches. Using a technique that combines X-ray colours and X-ray to optical flux ratios, we have been able to assign preliminary classifications to 265 of the objects. Our identifications include four pulsars, one high-mass X-ray binary (HMXB) candidate, 34 stars and 185 active galactic nuclei (AGN). In addition, we have classified 32 sources as `hard' AGN which are likely absorbed by local gas and dust, and nine `soft' AGN whose nature is still unclear. Considering the abundance of HMXBs discovered so far in the Bar of the SMC the number that we have detected in the Wing is low.
stars: emission-line, be, magellanic clouds, x-rays binaries
0035-8711
330-338
McGowan, K.E.
1d9a32e0-414b-462b-ab42-9901e4aeb2f3
Coe, M.J.
04dfb23b-1456-46a3-9242-5cee983471d5
Schurch, M.J.
ea6a659c-6ca0-44aa-a4da-d358caf02813
McBride, V.A.
a4608811-5a3f-4218-ada0-28f57ec2a0fd
Galache, J.G.
ad07bc03-4e4f-4c0f-ae28-253e6159a0ca
Edge, W.R.T.
ddf5b928-0c17-4609-b443-ef45f04e9477
Corbet, R.H.D.
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Laycock, S.G.
b7ff1435-9588-43fb-ad36-a55a66ae0e53
Buckley, D.A.
cdba6eba-dbdc-400d-814a-b7f14e33d4ba
McGowan, K.E.
1d9a32e0-414b-462b-ab42-9901e4aeb2f3
Coe, M.J.
04dfb23b-1456-46a3-9242-5cee983471d5
Schurch, M.J.
ea6a659c-6ca0-44aa-a4da-d358caf02813
McBride, V.A.
a4608811-5a3f-4218-ada0-28f57ec2a0fd
Galache, J.G.
ad07bc03-4e4f-4c0f-ae28-253e6159a0ca
Edge, W.R.T.
ddf5b928-0c17-4609-b443-ef45f04e9477
Corbet, R.H.D.
7d365a78-a577-4f56-8d3a-503b7fccb42b
Laycock, S.G.
b7ff1435-9588-43fb-ad36-a55a66ae0e53
Buckley, D.A.
cdba6eba-dbdc-400d-814a-b7f14e33d4ba

McGowan, K.E., Coe, M.J., Schurch, M.J., McBride, V.A., Galache, J.G., Edge, W.R.T., Corbet, R.H.D., Laycock, S.G. and Buckley, D.A. (2008) The chandra small magellanic cloud wing survey - the search for X-ray binaries. Monthly Notices of the Royal Astronomical Society, 383 (1), 330-338. (doi:10.1111/j.1365-2966.2007.12559.x).

Record type: Article

Abstract

We have detected 523 sources in a survey of the Small Magellanic Cloud (SMC) Wing with Chandra. By cross-correlating the X-ray data with optical and near-infrared catalogues, we have found 300 matches. Using a technique that combines X-ray colours and X-ray to optical flux ratios, we have been able to assign preliminary classifications to 265 of the objects. Our identifications include four pulsars, one high-mass X-ray binary (HMXB) candidate, 34 stars and 185 active galactic nuclei (AGN). In addition, we have classified 32 sources as `hard' AGN which are likely absorbed by local gas and dust, and nine `soft' AGN whose nature is still unclear. Considering the abundance of HMXBs discovered so far in the Bar of the SMC the number that we have detected in the Wing is low.

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More information

Published date: January 2008
Keywords: stars: emission-line, be, magellanic clouds, x-rays binaries
Organisations: University of Southampton

Identifiers

Local EPrints ID: 143581
URI: http://eprints.soton.ac.uk/id/eprint/143581
ISSN: 0035-8711
PURE UUID: a2693850-c4b6-4228-85a6-fd0439a96976
ORCID for M.J. Coe: ORCID iD orcid.org/0000-0002-0763-8547

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Date deposited: 12 Apr 2010 14:26
Last modified: 18 Feb 2021 16:34

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Contributors

Author: K.E. McGowan
Author: M.J. Coe ORCID iD
Author: M.J. Schurch
Author: V.A. McBride
Author: J.G. Galache
Author: W.R.T. Edge
Author: R.H.D. Corbet
Author: S.G. Laycock
Author: D.A. Buckley

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