New Online Database of Symbiotic Variables: LMC S63

CONFIRMED LMC

Constellation
Dorado

Equatorial coordinates
α = 05 48 43.436
δ = -67 36 10.296

Galactic coordinates
l = 277.6270°
b = -30.8790°

Suspected	1974^Ref
Confirmed	1980^Ref
Symbiotic IR type	S^Ref
Hot component type	shell-burning^Ref
Outbursts	Yes^Ref - Z And?^Ref

Identifiers

LMC S63	IRAS -	GSC2.4.2 S1HC367984	AAVSO 000-BJP-583
SIMBAD LHA 120-S 63	Pan-STARRS -	SAO -	VSX 237639
GAIA DR3 4659219795902825600	SkyMapper 054843.44-673610.4	WRAY -	GCVS -
2MASS J05484342-6736102	HIP -	Hen -	BD -
WISE J054843.42-673610.2	TYC -	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	LMC S63 (Conf.)	Belzcyński et al. (2001)	LMC S63 (Conf.)
Gaposchkin (1957)	-	Kenyon (1986)	LMC S63 (Conf.)	Akras et al. (2019)	LMC S63 (Conf.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	HV 12671 (Conf.)

Position

Right ascension (°)	87.1810^Ref	Parallax (mas)	0.009±0.025^Ref	Reddening E(B-V) (mag)	0.1±0.02^Ref ^{, Note}
Declination (°)	-67.6029^Ref	Distance (kpc)	49.97±0.19^Ref 14.04^Ref ^{, Note}, 11.25^Ref ^{, Note}
Galactic longitude (°)	277.6270^Ref	Proper motion in α (mas/yr)	1.50±0.03^Ref
Galactic latitude (°)	-30.8790^Ref	Proper motion in δ (mas/yr)	0.83±0.03^Ref

Observations

X-Ray	Yes^Ref	IR type	S^Ref	Radio	-
X-Ray type	α^Ref	J (mag)	12.51^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	11.65^Ref	Outbursts	Yes^Ref
GALEX NUV (mag)	-	K (mag)	11.33^Ref	Outburst type	Z And?^Ref
IUE	Yes^Ref	WISE W1 (mag)	11.01^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	11.07^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	10.54^Ref	IPmax (eV)	97.1^Ref
B (mag)	16.71^Ref	WISE W4 (mag)	9.36^Ref	[O III] lines	Yes^Ref
V (mag)	15.51^Ref	IRAS 12μm (Jy)	-	He II lines	Yes^Ref
R (mag)	15.17^Ref	IRAS 25μm (Jy)	-	[Fe VII] lines	No^Ref
I (mag)	14.07^Ref	IRAS 60μm (Jy)	-	O VI lines	No^Ref
BP (mag)	15.96^Ref	IRAS 100μm (Jy)	-
G (mag)	15.10^Ref	AKARI S09 (Jy)	-
RP (mag)	14.14^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	1050±0.5^Ref	γ velocity (km/h)	296.12±2.71^Ref	Size of giant’s orbit (AU)	-
Eccentricity	-	RV of giant (km/h)	-	Separation (AU)	-
Inclination (°)	-	Inferior conj. of giant (JD)	-	Mass function	-
Eclipses	Yes^Ref			Mass ratio	-
Orbital ephemeris	Min (B) = 2449885.6±7.4 + 1050±0.5 x E^Ref

Cool component

Spectral type	C2.1J^Ref	Mass (M_⊙)	2^Ref	Pulsation	Yes^Ref
Eff. temperature (K)	3500±250^Ref	Radius (R_⊙)	190230±-^Ref	Type	-
IR type	S^Ref	Luminosity (L_⊙)	9120^Ref, 3900^Ref	Pulsation period (days)	72±1^Ref
Metallicity [Fe/H]	-			Pulsation ephemeris	Min(I) = 2456035±1 + 72±1 x E^Ref

Hot component

Type/Spectral type	-	Mass (M_⊙)	-	Spin period (min)	-
Shell-burning/Accreting-only	shell-burning^Ref	Radius (R_⊙)	0.4^Ref	Accretion disk	-
Eff. temperature (K)	85000^Ref, 100000^Ref	Luminosity (L_⊙)	7500^Ref, 1600^Ref
Lower limit (K)	-
Upper limit (K)	-

Links

SIMBAD CDS Portal

Notes

The giant companion was spectroscopically classified as a carbon star. The photographic light curve revealed a 2.5 mag outburst that started in 1930, and the star remained active in the optical for at least 14 years (Iłkiewicz et al., 2015).

References

Akras, S., Guzman-Ramirez, L., Leal-Ferreira, M. L. et al., 2019, ApJS, 240, 2, 21, 2019ApJS..240...21A
Allen, D. A., 1980, ApL, 20, 131, 1980ApL....20..131A
Angeloni, R., Ferreira Lopes, C. E., Masetti, N. et al., 2014, MNRAS, 438, 1, 35, 2014MNRAS.438...35A
Bickert, K. F., Stencel, R. E., Luthardt, R., 1993, IAUS, 155, 405, 1993IAUS..155..405B
Iłkiewicz, K., Mikołajewska, J., Miszalski, B. et al., 2015, MNRAS, 451, 4, 3909, 2015MNRAS.451.3909I
Kafatos, M., Michalitsianos, A. G., Allen, D. A. et al., 1983, ApJ, 275, 584, 1983ApJ...275..584K
Morgan, D. H., 1992, MNRAS, 258, 639, 1992MNRAS.258..639M

LMC S63