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

ID# 3

4U 1543-475

IL Lup

RA (h:m:s)  DEC (º:':")  J2000:
15:47:08.32 -47:40:10.80
( Park2004 )

Galactic l (º)  b (º)  J2000:
330.9178710  +05.4261469

Year of discovery: 1971  
( Giacconi1972 Matilsky1972 )

# of outbursts after discovery: 3

Dynamically confirmed BH

Basic data

Distance (d) 7.5±0.5 (kpc) Jonker2004
d above plane (z) 0.7±0.05 (kpc) Jonker2004
Orbital period 26.79377±7E-05 (h) Orosz1998 Orosz2003
Peak X-ray flux 9.42E-08
(erg/s/cm2) [keV] Park2004
Outburst magnitude (AB) V=14.9 (mag) Pedersen1983a
Quiescent magnitude (AB) I=16.1±0.1 (mag) Orosz1998 Chevalier1992 Buxton2004
E(B-V) 0.5 (mag) Orosz1998
Notes 4U 1543-475 have shown outbursts in 1984, 1992 and 2002 ( Kitamoto1984 , Harmon1992a , Miller2002 ). The peak X-ray flux taken from the 2002 outburst ( Park2004 ).

Dynamical parameters

Orbital period 26.79377±7E-05 (h) Orosz1998 Orosz2003
Star's spectral type A2V Orosz1998
Star's radial velocity amplitude (K2) 124±4 (km/s) Orosz1998
Mass function 'f(M1)' 0.25±0.01 (M) Orosz1998 Orosz2003
BH mass (M1) 8.4 – 10.4 (M) Orosz1998 Orosz2003
Mass ratio (q=M/M1) 0.25 – 0.31 Orosz1998 Orosz2003
Inclination angle (i) 20.7±1.5 (deg) Orosz1998 Orosz2003
Rot. broadening (v sini) 46±2 (km/s) Orosz1998 Orosz2003

Optical/NIR magnitudes

Mag. Outburst (AB) Pedersen1983a
Mag. Quiescence (AB) Orosz1998 Chevalier1992 Buxton2004
=16.1±0.1 ∼16.6±0.1 =17.3 =16.7 =16.04±0.05
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4U 1543-475 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.