Constraints on black hole accretion in V Puppis |
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| Authors: | Thomas J Maccarone Robert P Fender Christian Knigge A K Tzioumis |
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| Institution: | School of Physics and Astronomy, University of Southampton, Hampshire SO17 1BJ;Australia National Telescope Facility, CSIRO, PO Box 76, Epping, New South Wales 17190, Australia |
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| 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 μJy 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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| Keywords: | stars: individual: V Puppis X-rays: stars |
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