New Online Database of Symbiotic Variables: M33SyS J013449.50+304736.9

CONFIRMED M33

Constellation
Triangulum

Equatorial coordinates
α = 01 34 49.473
δ = +30 47 36.935

Galactic coordinates
l = 133.8207°
b = -31.1591°

Suspected	2017^Ref
Confirmed	2017^Ref
Symbiotic IR type	-
Hot component type	shell-burning^Ref
Outbursts	-

Identifiers

M33SyS J013449.50+304736.9	IRAS -	GSC2.4.2 NBXX007848	AAVSO -
SIMBAD M33SyS J013449.50+304736.9	Pan-STARRS 144950237061092958	SAO -	VSX -
GAIA DR3 303376393640103680	SkyMapper -	WRAY -	GCVS -
2MASS -	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)	M33 SySt-10 (Conf.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	-

Position

Right ascension (°)	23.7061^Ref	Parallax (mas)	-0.846±1.719^Ref	Reddening E(B-V) (mag)	0.04±0.0^Ref ^{, Note}
Declination (°)	30.7936^Ref	Distance (kpc)	847±60^Ref 1.31^Ref ^{, Note}, 3.31^Ref ^{, Note}
Galactic longitude (°)	133.8207^Ref	Proper motion in α (mas/yr)	4.55±2.32^Ref
Galactic latitude (°)	-31.1591^Ref	Proper motion in δ (mas/yr)	-3.19±1.15^Ref

Observations

X-Ray	No^Ref	IR type	-	Radio	-
X-Ray type	-	J (mag)	-	Flickering	-
GALEX FUV (mag)	-	H (mag)	-	Outbursts	-
GALEX NUV (mag)	-	K (mag)	-	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	-	Jets	-
FUSE	No^Ref	WISE W2 (mag)	-	Resolved nebula	-
U (mag)	22.86^Ref	WISE W3 (mag)	-	IPmax (eV)	54.4^Ref
B (mag)	23.19^Ref	WISE W4 (mag)	-	[O III] lines	Yes^Ref
V (mag)	21.48^Ref	IRAS 12μm (Jy)	-	He II lines	Yes^Ref
R (mag)	20.30^Ref	IRAS 25μm (Jy)	-	[Fe VII] lines	No^Ref
I (mag)	19.46^Ref	IRAS 60μm (Jy)	-	O VI lines	No^Ref
BP (mag)	21.59^Ref	IRAS 100μm (Jy)	-
G (mag)	20.73^Ref	AKARI S09 (Jy)	-
RP (mag)	19.78^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	500^Ref	γ velocity (km/h)	-	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	CN^Ref	Mass (M_⊙)	-	Pulsation	Yes^Ref
Eff. temperature (K)	-	Radius (R_⊙)	-	Type	low-amplitude SR^Ref
IR type	-	Luminosity (L_⊙)	-	Pulsation period (days)	-
Metallicity [Fe/H]	-			Pulsation ephemeris	-

Hot component

Type/Spectral type	-	Mass (M_⊙)	-	Spin period (min)	-
Shell-burning/Accreting-only	shell-burning^Ref	Radius (R_⊙)	-	Accretion disk	-
Eff. temperature (K)	-	Luminosity (L_⊙)	-
Lower limit (K)	54000^Ref
Upper limit (K)	144000^Ref

Links

SIMBAD CDS Portal

Notes

The light curve of the object suggests a combination of low-amplitude SR pulsations of the giant and orbitally related changes with a longer period (Mikołajewska et al., 2017).

References

Mikołajewska, J., Shara, M. M., Caldwell, N. et al., 2017, MNRAS, 465, 2, 1699, 2017MNRAS.465.1699M

M33SyS J013449.50+304736.9