| Issue |
A&A
Volume 375, Number 2, August IV 2001
|
|
|---|---|---|
| Page(s) | 447 - 454 | |
| Section | Interstellar and circumstellar matter | |
| DOI | https://doi.org/10.1051/0004-6361:20010855 | |
| Published online | 15 August 2001 | |
The IR counterpart of the black-hole candidate 4U 1630-47*
1
Isaac Newton Group of Telescopes, Apartado de Correos 321, 38700 Santa Cruz de La Palma, Canary Islands, Spain
2
Space Research Organization Netherlands, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
3
Astronomical Institute, Utrecht University, PO Box 80000, 3508 TA Utrecht, The Netherlands
Corresponding author: T. Augusteijn, tau@ing.iac.es
Received:
2
February
2001
Accepted:
8
June
2001
We present K band photometry of the region including the radio
error box of the soft X-ray transient 4U 1630-47 during its 1998
outburst. We detect a variable source at 
mag located inside the
radio error circle which we identify as the counterpart to the X-ray
source. We discuss the properties of the source, and conclude that it is
most likely a black-hole X-ray binary similar to 4U 1543-47,
GRO J1655-40 or SAX J1819.3-2525, containing a
relatively early-type secondary.
Key words: accretion, accretion disks / stars: individual: 4U 1630-47 / X-rays: stars
© ESO, 2001
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