| Issue |
A&A
Volume 373, Number 3, July III 2001
|
|
|---|---|---|
| Page(s) | L37 - L40 | |
| Section | Letters | |
| DOI | https://doi.org/10.1051/0004-6361:20010771 | |
| Published online | 15 July 2001 | |
Identification of the donor in the X-ray binary GRS 1915+105*
1
Astrophysikalisches Institut Potsdam, 14482 Potsdam, An der Sternwarte 16, Germany
2
ESO, Alonso de Córdova 3107, Santiago 19, Chile
3
Instituto de Astrofísica de Andalucía, (IAA-CSIC), PO Box 03004, 18080 Granada, Spain
4
Laboratorio de Astrofísica Espacial y Física Fundamental (LAEFF-INTA), PO Box 50727, 208080 Madrid, Spain
5
Universidad de Concepción, Casilla 160-C Concepción, Chile
Corresponding author: J. Greiner, jgreiner@aip.de
Received:
14
May
2001
Accepted:
26
May
2001
We report on the results of medium-resolution spectroscopy of GRS 1915+105 in the near-infrared H and K band using the 8 m 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).
Key words: stars: binaries / infrared: stars / stars: individual: GRS 1915+105
© ESO, 2001
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