IGR J16393-4643

Constellation
Ara

Equatorial coordinates
α = 16 39 05.371
δ = -46 42 14.424

Galactic coordinates
l = 338.0011°
b = 0.0751°

Suspected	2008^Ref
Re-classified	2012^Ref
Type	wind-accreting HMXB^Ref

Identifiers

IGR J16393-4643	IRAS 16353-4636	GSC2.4.2 S8V2273266	AAVSO 000-BKQ-507
SIMBAD 2MASS J16390535-4642137	Pan-STARRS -	SAO -	VSX 285867
GAIA DR3 5942638079316880512	SkyMapper -	WRAY -	GCVS -
2MASS J16390535-4642137	HIP -	Hen -	BD -
WISE -	TYC -	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	-	Belzcyński et al. (2001)	-
Gaposchkin (1957)	-	Kenyon (1986)	-	Akras et al. (2019)	IGR J16393-4643 (Susp.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	-

Position

Right ascension (°)	249.7724^Ref	Parallax (mas)	-0.076±0.570^Ref	Reddening E(B-V) (mag)	38.33±5.96^Ref ^{, Note}
Declination (°)	-46.7040^Ref	Distance (kpc)	4.70^Ref ^{, Note}, 6.70^Ref ^{, Note}
Galactic longitude (°)	338.0011^Ref	Proper motion in α (mas/yr)	-1.15±0.74^Ref
Galactic latitude (°)	0.0751^Ref	Proper motion in δ (mas/yr)	-3.91±0.48^Ref

Links

SIMBAD CDS Portal

Notes

Suggested as a symbiotic X-ray binary by Nespoli et al. (2010), the association with the red giant was rejected by Bodaghee et al. (2012), who proposed a wind-accreting high-mass X-ray binary as a possible explanation. The system has an orbital period of 4.2 days (Corbet et al., 2010).

References

Bodaghee, A., Rahoui, F., Tomsick, J. A. et al., 2012, ApJ, 751, 2, 113, 2012ApJ...751..113B
Corbet, R. H. D., Krimm, H. A., Barthelmy, S. D. et al., 2010, ATel, 2570, 1, 2010ATel.2570....1C
Kabiraj, S., Islam, N., Paul, B., 2020, MNRAS, 491, 1, 1491, 2020MNRAS.491.1491K
Nespoli, E., Fabregat, J., Mennickent, R. E., 2008, ATel, 1450, 1, 2008ATel.1450....1N
Nespoli, E., Fabregat, J., Mennickent, R. E., 2010, A&A, 516, A94, 2010A&A...516A..94N