BlackCAT A Catalog of Stellar-Mass Black Holes in X-ray Binaries

ID# 24

GRS 1739-278

V2606 Oph

RA (h:m:s)  DEC (º:':")  J2000:
17:42:40.03 -27:44:52.70
( Hjellming1996 )

Galactic l (º)  b (º)  J2000:
000.6720951  +01.1757242

Year of discovery: 1996  
( Paul1996 )

# of outbursts after discovery: 1

Basic data

Distance (d) 7.25±1.25 (kpc) Greiner1996
d above plane (z) 0.15±0.03 (kpc) Greiner1996
Orbital period (h)
Peak X-ray flux 7.20E-09
(erg/s/cm2) [keV] MAXI
Outburst magnitude (AB) R=20.6±0.1 (mag) Marti1997
Quiescent magnitude (AB) J>19.2 (mag)
E(B-V) 2 – 4 (mag) Marti1997
Spectral type >F5V Chaty2002a
Notes GRS 1739-278 showed another outburst in 2014 ( Miller2015b , Krimm2014b ) and 2016 ( Mereminskiy2016 ). The peak X-ray flux is taken from the MAXI SSC light curve of that outburst. It has an uncertain distance.

Optical/NIR magnitudes

Mag. Outburst (AB) Marti1997
Mag. Quiescence (AB)
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GRS 1739-278 in Simbad
Finding charts orientation:North up, East left
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Object marked with lines

Finding chart
This research has made use of NASA's Astrophysics Data System (ADS) and the SIMBAD database operated at CDS (Strasbourg, France)
Please acknowledge the use of this catalogue in any published work you derive from it.