Identification of the donor in the X-ray binary GRS 1915+105
arXiv:astro-ph/0105467 · doi:10.1051/0004-6361:20010771
Abstract
We report on the results of medium-resolution spectroscopy of GRS 1915+105 in the near-infrared H and K band using the 8m VLT at ESO. We clearly identify absorption bandheads from 12CO and 13CO. Together with other features this results in a classification of the mass-donating star in this binary as a K-M III star, clearly indicating that GRS 1915+105 belongs to the class of low-mass X-ray binaries (LMXB).
5 pages, 3 figures, to appear as A&A Lett