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

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ID# 17

GRO J0422+32

V518 Per

( Shrader1994 )

RA     [J2000]     DEC

[]          []

04:21:42.79  +32:54:27.10

ℓ                      b

[deg]                            [deg]

165.8808146  -11.91243707

Year of discovery: 1992  
( Paciesas1992 )

# of outbursts after discovery:

Basic data

Distance [kpc] 2.49±0.3 Gelino2003
Distance to the plane (z) [kpc] -0.51±0.06 Gelino2003
Orbital period (Porb) [h] 5.091850±0.000005 Gelino2003
Peak X-ray flux [erg s-1 cm-2]
Outburst magnitude (AB) R=12.65 Castro-Tirado1992b
Quiescent magnitude (AB) R=21.0±0.1 Gelino2003 Garcia1996 Webb2000
E(B-V) [mag] 0.3 Jonker2004

Dynamically confirmed BH


Dynamical parameters

Orbital period [h] 5.091850±0.000005 Gelino2003
Star's spectral type M4 – 5V Casares1995c Webb2000
Star's radial velocity amplitude (K2) [km/s] 378±16 Webb2000
Mass function 'f(M1)' [M] 1.19±0.02 Casares1995c Webb2000
BH mass (M1) [M] 2 – 15 Casares1995c Webb2000 Beekman1997
Mass ratio (q=M2/M1) 0.11+0.05-0.02 Webb2000
Inclination angle (i) [deg] 10 – 50 Casares1995c Beekman1997 Webb2000
Rot. broadening (v sini) [km/s] 90+22-27 Harlaftis1999

Optical/NIR magnitudes

Mag. Outburst (AB)
V=13.11 R=12.65
Mag. Quiescent (AB)
Gelino2003 Garcia1996 Webb2000
B=23.1±0.2 V=22.0±0.1 R=21.0±0.1
J=19.3±0.1 H=19.0±0.2 Ks=19.29±0.09
Aladin finding chart
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GRO J0422+32 in Simbad

Pan-STARRS1 finding chart

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PS1 Finding chart PS1 Finding chart

Finding charts

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Finding chart
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.

Last modified: 27 August 2021.