RA (ICRS) DEC
|
ℓ b
|
Distance [kpc] | 3.2±0.2 | Hjellming1995 |
---|---|---|
Distance to the plane (z) [kpc] | 0.14±0.01 | Hjellming1995 |
Orbital period (Porb) [h] | 62.926272±0.000096 | Petretti2023 |
Peak X-ray flux [erg s-1 cm-2] [keV] |
1.15E-07 [2-10] |
Brocksopp2006 |
Outburst magnitude (AB) | R=13.55 | Bailyn1995 |
Quiescent magnitude (AB) | R=16.3±0.1 | Orosz1997Greene2001VanDerHooft1998Petretti2023 |
E(B-V) [mag] | 1.3 | Horne1996Orosz1997 |
Dynamically confirmed BH
GRO J1655-40 (Nova Sco. 1994) has shown several outburst. The peak X-ray flux is taken from its 2005 outburst, the brightest one so far (Brocksopp2006). Gandhi2019 obtained a distance of 3.74+1.65-0.91 kpc from Gaia DR2. |
Orbital period [h] | 62.926272±0.000096 | Petretti2023 |
---|---|---|
Star's spectral type | F6IV | Orosz1997 |
Star's radial velocity amplitude (K2) [km/s] | 226.1±0.8 | GonzalezHernandez2008a |
Mass function 'f(M1)' [M☉] | 2.73±0.09 | Shahbaz1999 |
BH mass (M1) [M☉] | 6±0.4 | Shahbaz2003a |
Mass ratio (q=M2/M1) | 0.42±0.03 | Shahbaz2003a |
Inclination angle (i) [deg] | 69±2 | Beer2002 |
Rot. broadening (v sini) [km/s] | 86+3-4 | Shahbaz1999 |
|
|||
---|---|---|---|
V=14.4 | R=13.55 | ||
Orosz1997Greene2001VanDerHooft1998Petretti2023 |
|||
B∼18.5 | V∼17.5 | R=16.3±0.1 | |
I∼15.8 | i=14.9±0.1 | ||
J∼14.76 | Ks∼15.12 |
Orientation: North up, East left.
Object marked
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