Infrared spectroscopy of V404 Cygni: limits on the accretion disc contamination

Details Infrared spectroscopy of V404 Cygni: limits on the accretion disc contamination Infrared spectroscopy of V404 Cygni: limits on the accretion disc contamination

Oct 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996mnras.282..977s&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 282, Issue 3, pp. 977-981.

Physics

33

Accretion, Accretion Discs, Black Hole Physics, Binaries: Close, Binaries: Spectroscopic, Stars: Individual: V404 Cygni, X-Rays: Stars

Scientific paper

We have obtained for the first time 2.10-2.45 μm infrared spectra of the soft-X-ray transient V404 Cygni. We determine a 95 per cent confidence upper limit to the fraction of light arising from the accretion disc of 14 per cent. The effect this has on the mass of the compact object, determined from modelling the infrared ellipsoidal variations, is to reduce its mass to at most 10 M_solar.

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