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

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ID# 19

GRS 1009-45

N Vel 1993 = MM Vel

( dellaValle1993 )

RA     [J2000]     DEC

[]          []

10:13:36.34  -45:04:31.50

ℓ                      b

[deg]                            [deg]

275.8784710  +09.34597492

Year of discovery: 1993  
( Lapshov1993 Harmon1993b )

# of outbursts after discovery: 2

Basic data

Distance [kpc] 3.8±0.3 Gelino2002
Distance to the plane (z) [kpc] 0.62±0.05 Gelino2002
Orbital period (Porb) [h] 6.8449±0.0003 Filippenko1999
Peak X-ray flux [erg s-1 cm-2]
Outburst magnitude (AB) R<14.7 dellaValle1997
Quiescent magnitude (AB) r=20.4±0.1 Shahbaz1996 Filippenko1999 Hynes2003
E(B-V) [mag] 0.18 – 0.23 dellaValle1997

Dynamically confirmed BH


Dynamical parameters

Orbital period [h] 6.8449±0.0003 Filippenko1999
Star's spectral type K7 – M0V Filippenko1999
Star's radial velocity amplitude (K2) [km/s] 475±6 Filippenko1999
Mass function 'f(M1)' [M] 3.2±0.1 Filippenko1999
BH mass (M1) [M] ≥4.4 Filippenko1999
Mass ratio (q=M2/M1) 0.055±0.01 Macias2011
Inclination angle (i) [deg] 37 – 80 Shahbaz1996
Rot. broadening (v sini) [km/s] 87±5 Macias2011

Optical/NIR magnitudes

Mag. Outburst (AB)
V=13.8±0.3 R<14.7
Mag. Quiescent (AB)
Shahbaz1996 Filippenko1999 Hynes2003
V=21.7±0.2 R=21.3±0.2
Aladin finding chart
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GRS 1009-45 in Simbad

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.