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

ID# 5

1H 1659-487

GX 339-4 = V821 Ara

RA (h:m:s)  DEC (º:':")  J2000:
17:02:49.40 -48:47:23.40
( Gallo2004 )

Galactic l (º)  b (º)  J2000:
338.9390902  -04.3264830

Year of discovery: 1972  
( Markert1973 )

# of outbursts after discovery: 19

Dynamically confirmed BH

Basic data

Distance (d) >6 (kpc) Hynes2004
d above plane (z) >-0.45 (kpc) Hynes2004
Orbital period 42.14±0.01 (h) Hynes2003a
Peak X-ray flux 2.56E-08
(erg/s/cm2) [keV] XTE/ASM
Outburst magnitude (AB) V=14.7±0.1 (mag) Buxton2012
Quiescent magnitude (AB) r=19.9±0.1 (mag) Shahbaz2001 Lewis2012
E(B-V) 1.2 (mag) Hynes2004
Notes 1H J1659-487 (GX 339-4) is a quasi persistent source. Peak X-ray flux from the 2002 outburst ( Homan2005 ). Peak outburst magnitude obtained from Buxton2012 (MJD=54132).

Dynamical parameters

Orbital period 42.14±0.01 (h) Hynes2003a
Star's spectral type >GIV Hynes2004
Star's radial velocity amplitude (K2) >317±10 (km/s) Hynes2003a
Mass function 'f(M1)' 5.8±0.5 (M) Hynes2003a
BH mass (M1) >6 (M) Munoz-Darias2008
Mass ratio (q=M/M1) ≤0.125 Munoz-Darias2008
Inclination angle (i) (deg)
Rot. broadening (v sini) (km/s)

Optical/NIR magnitudes

Mag. Outburst (AB) Buxton2012
Mag. Quiescence (AB) Shahbaz2001 Lewis2012
r R
=19.9±0.1 =21.6±0.3
Scroll to zoom. Set survey image in Controls
Default image: DSS2 Red
1H 1659-487 in Simbad
Finding charts orientation:North up, East left
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Object marked with lines

Comparison stars reference: Buxton2012

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.