RA (ICRS) DEC
|
ℓ b
|
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
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 |
|
|||
---|---|---|---|
V=13.8±0.3 | R<14.7 | ||
Shahbaz1996Filippenko1999Hynes2003 |
|||
V=21.7±0.2 | R=21.3±0.2 | ||
r=20.4±0.1 | |||
Orientation: North up, East left.
Object marked
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