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

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ID# 64

MAXI J1631-479

(Russell2019e)

RA     (ICRS)     DEC [hh:mm:ss.ss]          [dd:mm:ss.ss] 16:31:14.22  -47:48:23.44

ℓ                      b [deg]                            [deg] 336.2881394  00.31248069

Year of discovery: 2018  
(Kobayashi2018)

# of outbursts after discovery:

Basic data

Distance [kpc]
Distance to the plane (z) [kpc]
Orbital period (Porb) [h]
Peak X-ray flux [erg s-1 cm-2] [keV]	1.06E-08 [2-10]	Negoro2019
Outburst magnitude (AB)
Quiescent magnitude (AB)
E(B-V) [mag]	4.2 – 7.2	Miyasaka2018Eijnden2019
Spectral type

NOTES

MAXI J1631-479: Shin2019 reported a possible counterpart (VPHASDR2 J163114.1-474822.7) with i’=18.3. However it showed no optical variability compared to their observations (R ~ 19.1 and I ~ 18.0). Later, Kong2019 detected another target 1.4” from the radio position with r’=19.36 ± 0.06 (calibrated against APASS) and R=18.13 ± 0.03 in DSS images from 1992. The possible counterpart seems to be an interloper unrelated to the X-ray transient

Optical/NIR magnitudes

Mag. Outburst (AB)
Mag. Quiescent (AB)

Aladin finding chart

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MAXI J1631-479 in Simbad

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