Volume 375, Number 2, August IV 2001
|Page(s)||447 - 454|
|Section||Interstellar and circumstellar matter|
|Published online||15 August 2001|
The IR counterpart of the black-hole candidate 4U 1630-47*
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, email@example.com
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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