Constraints on black hole accretion in V Puppis

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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