The mass of the black hole in LMC X-3

Details The mass of the black hole in LMC X-3 The mass of the black hole in LMC X-3

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..924..530v&link_type=abstract

THE MULTICOLORED LANDSCAPE OF COMPACT OBJECTS AND THEIR EXPLOSIVE ORIGINS. AIP Conference Proceedings, Volume 924, pp. 530-533

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Black Holes, Magellanic Clouds And Other Irregular Galaxies, X-Ray Binaries, Masses

Scientific paper

New high resolution, optical spectroscopy of the high mass X-ray binary LMC X-3, shows the spectral type of the donor star changes with phase due to irradiation by the X-ray source. We find the spectral type is likely to be B5V, and only appears as B3V when viewing the heated side of the donor. Combining our measurements with those previously published, and taking into account the effects of X-ray irradiation, results in a value for the donor star radial velocity semi-amplitude of Ko = 256.7 +/- 4.9 km s-1. We find the mass of the black hole lies in the range 9.5Msolar <= MX <= 13.6Msolar.

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