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Constraints on black hole accretion in V Puppis

Constraints on black hole accretion in V Puppis
Constraints on black hole accretion in V Puppis
In light of the recent suggestion that the nearby eclipsing binary star system V Puppis has a dark companion on a long orbit, we present the results of radio and X-ray observations of it. We find an upper limit on its radio flux of about 300 ?Jy and a detection of it in the X-rays with a luminosity of about 3 × 1031 erg s?1, a value much lower than what had been observed in some of the low angular resolution surveys of the past. These data are in good agreement with the idea that the X-ray emission from V Puppis comes from mass transfer between the two B stars in the system, but can still accommodate the idea that the X-ray emission comes from the black hole accreting stellar wind from one or both of the B stars
stars, individual, V Puppis, X-rays
0035-8711
1070
Maccarone, Thomas J.
27e6101c-8fa4-41db-ba75-d2ee3d1a0c53
Fender, Robert P.
c802ddfc-25a3-4c0e-899d-11c405c705d1
Knigge, Christian
ac320eec-631a-426e-b2db-717c8bf7857e
Tzioumis, A. K.
d069871e-6e05-4f5a-a876-58fc583346c6
Maccarone, Thomas J.
27e6101c-8fa4-41db-ba75-d2ee3d1a0c53
Fender, Robert P.
c802ddfc-25a3-4c0e-899d-11c405c705d1
Knigge, Christian
ac320eec-631a-426e-b2db-717c8bf7857e
Tzioumis, A. K.
d069871e-6e05-4f5a-a876-58fc583346c6

Maccarone, Thomas J., Fender, Robert P., Knigge, Christian and Tzioumis, A. K. (2009) Constraints on black hole accretion in V Puppis. Monthly Notices of the Royal Astronomical Society, 393 (3), 1070. (doi:10.1111/j.1365-2966.2008.14291.x).

Record type: Article

Abstract

In light of the recent suggestion that the nearby eclipsing binary star system V Puppis has a dark companion on a long orbit, we present the results of radio and X-ray observations of it. We find an upper limit on its radio flux of about 300 ?Jy and a detection of it in the X-rays with a luminosity of about 3 × 1031 erg s?1, a value much lower than what had been observed in some of the low angular resolution surveys of the past. These data are in good agreement with the idea that the X-ray emission from V Puppis comes from mass transfer between the two B stars in the system, but can still accommodate the idea that the X-ray emission comes from the black hole accreting stellar wind from one or both of the B stars

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More information

Published date: 2009
Keywords: stars, individual, V Puppis, X-rays

Identifiers

Local EPrints ID: 144181
URI: http://eprints.soton.ac.uk/id/eprint/144181
ISSN: 0035-8711
PURE UUID: c1962ecf-30f8-4914-8414-7aa369cd3b4f

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Date deposited: 16 Apr 2010 15:59
Last modified: 17 Jul 2019 00:07

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