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

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ID# 11

EXO 1846-031

(Miller-Jones2019)

RA     (ICRS)     DEC [hh:mm:ss.ss]          [dd:mm:ss.ss] 18:49:17.05  -03:03:55.26

ℓ                      b [deg]                            [deg] 029.9580344  -00.91793414

Year of discovery: 1985  
(Parmar1985)

# of outbursts after discovery:

Basic data

Distance [kpc]	∼7	Parmar1993
Distance to the plane (z) [kpc]	∼-0.11	Parmar1993
Orbital period (Porb) [h]
Peak X-ray flux [erg s-1 cm-2] [keV]	1.02E-08 [2-10]	Parmar1993
Outburst magnitude (AB)	r>23
Quiescent magnitude (AB)	I>22.3	Parmar1993
E(B-V) [mag]	6.437	Schlafly2011
Spectral type

NOTES

EXO 1846-031 showed another outburst in 2019 (Negoro2019) but no optical counterpart was detected brighter than r~23 (Bellm2019).

Optical/NIR magnitudes

Mag. Outburst (AB)
		r>23
Mag. Quiescent (AB) Parmar1993
	I>22.3

Aladin finding chart

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EXO 1846-031 in Simbad

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Pan-STARRS1 finding chart

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