XMM-Newton and chandra observations of neutron stars and cataclysmic variables in the globular cluster NGC 2808
XMM-Newton and chandra observations of neutron stars and cataclysmic variables in the globular cluster NGC 2808
We report on XMM-Newton and Chandra observations of the globular cluster NGC 2808. We detect one quiescent low mass X-ray binary of the 3±1 expected, if these systems are formed through encounters, and we show evidence for the presence of 20±10 bright cataclysmic variables in the core with a luminosity above 4×1031 erg s?1. We also review the specific nature of cataclysmic variables in globular clusters with reference to recent VLT/FORS1 observations of a cataclysmic variable in M 22
globular clusters: individual (NGC 2808, M 22), stars: neutron, cataclysmic variables, binaries: close
373-374
Servillat, M.
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Webb, N.A.
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Barret, D.
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Cornelisse, R.
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Dieball, A.
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Knigge, C.
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Long, K.S.
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Shara, M.M.
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Zurek, D.R.
4745ee98-520b-4e26-a05a-113c0c563b97
September 2007
Servillat, M.
d6a403fa-f475-493b-ae95-fa8b544ed567
Webb, N.A.
ec9e7c5c-2662-4c15-99bb-18075fa47870
Barret, D.
343cdacd-9683-4f70-910b-6539201daf06
Cornelisse, R.
06976a3f-4a05-4c72-8462-7e71b00e7b77
Dieball, A.
7f8cc053-51b8-4ddf-acdd-f55796c33703
Knigge, C.
ac320eec-631a-426e-b2db-717c8bf7857e
Long, K.S.
91417b3d-d408-475a-8907-eec131e17c66
Shara, M.M.
4d9c7bc7-3420-4773-b421-b1f5c362ab5b
Zurek, D.R.
4745ee98-520b-4e26-a05a-113c0c563b97
Servillat, M., Webb, N.A., Barret, D., Cornelisse, R., Dieball, A., Knigge, C., Long, K.S., Shara, M.M. and Zurek, D.R.
(2007)
XMM-Newton and chandra observations of neutron stars and cataclysmic variables in the globular cluster NGC 2808.
Proceedings of the International Astronomical Union, 3 (S246), .
(doi:10.1017/S1743921308016001).
Abstract
We report on XMM-Newton and Chandra observations of the globular cluster NGC 2808. We detect one quiescent low mass X-ray binary of the 3±1 expected, if these systems are formed through encounters, and we show evidence for the presence of 20±10 bright cataclysmic variables in the core with a luminosity above 4×1031 erg s?1. We also review the specific nature of cataclysmic variables in globular clusters with reference to recent VLT/FORS1 observations of a cataclysmic variable in M 22
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Published date: September 2007
Keywords:
globular clusters: individual (NGC 2808, M 22), stars: neutron, cataclysmic variables, binaries: close
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Local EPrints ID: 144207
URI: http://eprints.soton.ac.uk/id/eprint/144207
PURE UUID: b335caad-99d7-4a24-a2f8-57fbdf96dbc1
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Date deposited: 07 Jun 2010 12:12
Last modified: 14 Mar 2024 00:45
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Author:
M. Servillat
Author:
N.A. Webb
Author:
D. Barret
Author:
R. Cornelisse
Author:
A. Dieball
Author:
K.S. Long
Author:
M.M. Shara
Author:
D.R. Zurek
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