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

ID# 21

GRO J1655-40

N Sco 1994 = V1033 Sco

RA (h:m:s)  DEC (º:':")  J2000:
16:54:00.14 -39:50:44.90
( Bailyn1995 )

Galactic l (º)  b (º)  J2000:
344.9818318  +02.4560428

Year of discovery: 1994  
( Zhang1994 )

# of outbursts after discovery: 2 – 4

Dynamically confirmed BH

Basic data

Distance (d) 3.2±0.2 (kpc) Hjellming1995
d above plane (z) 0.14±0.01 (kpc) Hjellming1995
Orbital period 62.92±0.003 (h) VanDerHooft1998
Peak X-ray flux 1.15E-07
(erg/s/cm2) [keV] Brocksopp2006
Outburst magnitude (AB) R=13.55 (mag) Bailyn1995
Quiescent magnitude (AB) R=16.3±0.1 (mag) Orosz1997 Greene2001 VanDerHooft1998 Greene2001
E(B-V) 1.3 (mag) Horne1996 Orosz1997
Notes GRO J1655-40 (Nova Sco. 1994) has shown several outburst. The peak X-ray flux is taken from its 2005 outburst, the brightest one so far ( Brocksopp2006 ).

Dynamical parameters

Orbital period 62.92±0.003 (h) VanDerHooft1998
Star's spectral type F6IV Orosz1997
Star's radial velocity amplitude (K2) 226.1±0.8 (km/s) GonzalezHernandez2008a
Mass function 'f(M1)' 2.73±0.09 (M) Shahbaz1999
BH mass (M1) 6±0.4 (M) Shahbaz2003a
Mass ratio (q=M/M1) 0.42±0.03 Shahbaz2003a
Inclination angle (i) 69±2 (deg) Beer2002
Rot. broadening (v sini) 86+3-4 (km/s) Shahbaz1999

Optical/NIR magnitudes

Mag. Outburst (AB) Bailyn1995
Mag. Quiescence (AB) Orosz1997 Greene2001 VanDerHooft1998 Greene2001
R B V i J
=16.3±0.1 ∼18.537 =17.3±0.1 =14.9±0.1 ∼14.76
Ks V V R I
∼15.12 ∼17.5 ∼17.3 ∼16.2 ∼15.8
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GRO J1655-40 in Simbad
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Object marked with lines

Finding chart
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.