Journal
ASTRONOMY & ASTROPHYSICS
Volume 375, Issue 2, Pages 447-454Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361:20010855
Keywords
accretion, accretion disks; stars : individual : 4U 1630-47; X-rays : stars
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We present K band photometry of the region including the radio error box of the soft X-ray transient 4U1630-47 during its 1998 outburst. We detect a variable source at K = 16.1 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 4U1543-47, GROJ1655-40 or SAXJ1819.3-2525, containing a relatively early-type secondary.
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