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2002MNRAS.331.1065C - Mon. Not. R. Astron. Soc., 331, 1065-1071 (2002/April-3)
Near-infrared observations of Galactic black hole candidates.
CHATY S., MIRABEL I.F., GOLDONI P., MEREGHETTI S., DUC P.-A., MARTI J. and MIGNANI R.P.
Abstract (from CDS):
By locating the counterparts on a colour-magnitude diagram (CMD), we better constrain the spectral type of the companion star of three of the systems considered here, and confirm a fourth one. The spectral types are respectively: M0-5 V for GRS 1716-249, F8-G2 III for GX 339-4 and later than F5 V for GRS 1739-278. We confirm the already known spectral type of the companion in GRS 1121-68 (K0-5 V). The location of GRO J1655-40 on the CMD is consistent with the sub-giant luminosity class and with this source crossing the Hertzsprung gap. However, a non-stellar emission seems to contribute to the NIR flux of this source.
Abstract Copyright: 2002 Blackwell Science Ltd
Journal keyword(s): stars: individual: GRO J1655-40 - stars: individual: GRS 1739-278 - stars: individual: GRS 1716-249 - stars: individual: GRS 1121-68 - stars: individual: GX 339-4 - infrared: stars
Simbad objects: 6
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