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     (ICRS)     DEC [hh:mm:ss.ss]          [dd:mm:ss.ss] 10:13:36.34  -45:04:31.50

ℓ                      b [deg]                            [deg] 275.8784710  09.34597492

Year of discovery: 1993  
(Lapshov1993Harmon1993b)

# 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] [keV]	5.10E-08 [2-10]	Borozdin1993a
Outburst magnitude (AB)	R<14.7	dellaValle1997
Quiescent magnitude (AB)	r=20.4±0.1	Shahbaz1996Filippenko1999Hynes2003
E(B-V) [mag]	0.18 – 0.23	dellaValle1997

Dynamically confirmed BH

NOTES

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) dellaValle1997
	V=13.8±0.3	R<14.7
Mag. Quiescent (AB) Shahbaz1996Filippenko1999Hynes2003
	V=21.7±0.2		R=21.3±0.2
r=20.4±0.1

Aladin finding chart

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GRS 1009-45 in Simbad

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Finding charts

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