New Online Database of Symbiotic Variables: RT Car

Constellation
Carina

Equatorial coordinates
α = 10 44 47.133
δ = -59 24 48.077

Galactic coordinates
l = 287.4396°
b = -0.4060°

Suspected	1977^Ref
Confirmed	-
Symbiotic IR type	S/D?^Ref
Hot component type	accreting-only?^Ref
Outbursts	-

Identifiers

RT Car	IRAS 10428-5909	GSC2.4.2 S4B0165878	AAVSO 000-BBR-643
SIMBAD V* RT Car	Pan-STARRS -	SAO 38424	VSX 5765
GAIA DR3 5350389095946525568	SkyMapper -	WRAY -	GCVS RT Car
2MASS J10444716-5924478	HIP 52562	Hen -	BD -
WISE J104447.17-592447.6	TYC 8626-2596-1	ESO -	HD 303310

Symbiotic Catalogs

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

Position

Right ascension (°)	161.1964^Ref	Parallax (mas)	0.438±0.027^Ref	Reddening E(B-V) (mag)	7.09±1.54^Ref ^{, Note}
Declination (°)	-59.4134^Ref	Distance (kpc)	2.13^Ref ^{, Note}, 2.14^Ref ^{, Note}
Galactic longitude (°)	287.4396^Ref	Proper motion in α (mas/yr)	-7.43±0.03^Ref
Galactic latitude (°)	-0.4060^Ref	Proper motion in δ (mas/yr)	2.85±0.03^Ref

Observations

X-Ray	Yes^Ref	IR type	S/D?^Ref	Radio	No^Ref
X-Ray type	β/δ^Ref	J (mag)	2.97^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	1.95^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	1.50^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	-0.77^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	-0.22^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	-1.44^Ref	IPmax (eV)	No lines^Ref
B (mag)	11.82^Ref	WISE W4 (mag)	-2.05^Ref	[O III] lines	No^Ref
V (mag)	9.54^Ref	IRAS 12μm (Jy)	85.50^Ref	He II lines	No^Ref
R (mag)	-	IRAS 25μm (Jy)	98.70^Ref	[Fe VII] lines	No^Ref
I (mag)	-	IRAS 60μm (Jy)	372.00^Ref	O VI lines	No^Ref
BP (mag)	8.93^Ref	IRAS 100μm (Jy)	873.00^Ref
G (mag)	6.90^Ref	AKARI S09 (Jy)	-
RP (mag)	5.61^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	-	γ velocity (km/h)	-21.95±0.58^Ref	Size of giant’s orbit (AU)	-
Eccentricity	-	RV of giant (km/h)	-	Separation (AU)	-
Inclination (°)	-	Inferior conj. of giant (JD)	-	Mass function	-
Eclipses	-			Mass ratio	-
Orbital ephemeris	-

Cool component

Spectral type	M2 I^Ref	Mass (M_⊙)	-	Pulsation	Yes^Ref
Eff. temperature (K)	-	Radius (R_⊙)	-	Type	-
IR type	S/D?^Ref	Luminosity (L_⊙)	-	Pulsation period (days)	163.3^Ref
Metallicity [Fe/H]	-			Pulsation ephemeris	-

Hot component

Type/Spectral type	OB?^Ref	Mass (M_⊙)	-	Spin period (min)	-
Shell-burning/Accreting-only	accreting-only?^Ref	Radius (R_⊙)	-	Accretion disk	-
Eff. temperature (K)	-	Luminosity (L_⊙)	-
Lower limit (K)	-
Upper limit (K)	-

Links

SIMBAD CDS Portal

Notes

The star was included in the list of symbiotic binaries by Payne-Gaposchkin (1977). However, Schulte-Ladbeck (1988) did not detect any emission lines in the spectra, and it is unclear on which data the original suggestion is based.

References

Payne-Gaposchkin, C. H., 1977, AJ, 82, 665, 1977AJ.....82..665P
Schulte-Ladbeck, R. E., 1988, A&A, 189, 97, 1988A&A...189...97S

RT Car