New Online Database of Symbiotic Variables: LAMOST J064655.70+403923.1

Constellation
Auriga

Equatorial coordinates
α = 06 46 55.463
δ = +40 39 23.039

Galactic coordinates
l = 175.2113°
b = 16.4864°

Suspected	2023^Ref
Confirmed	-
Symbiotic IR type	-
Hot component type	accreting-only^Ref
Outbursts	-

Identifiers

LAMOST J064655.70+403923.1	IRAS 06434+4042	GSC2.4.2 N8PM000522	AAVSO -
SIMBAD IRAS 06434+4042	Pan-STARRS 156781017308508117	SAO -	VSX 2247264
GAIA DR3 945462322080709120	SkyMapper -	WRAY -	GCVS -
2MASS J06465546+4039229	HIP -	Hen -	BD -
WISE J064655.47+403923.0	TYC 2945-1578-1	ESO -	HD -

Symbiotic Catalogs

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

Position

Right ascension (°)	101.7311^Ref	Parallax (mas)	0.868±0.036^Ref	Reddening E(B-V) (mag)	0.12±0.0^Ref ^{, Note}
Declination (°)	40.6564^Ref	Distance (kpc)	1.09^Ref ^{, Note}, 1.08^Ref ^{, Note}
Galactic longitude (°)	175.2113^Ref	Proper motion in α (mas/yr)	-2.82±0.04^Ref
Galactic latitude (°)	16.4864^Ref	Proper motion in δ (mas/yr)	-9.52±0.04^Ref

Observations

X-Ray	-	IR type	-	Radio	-
X-Ray type	-	J (mag)	5.34^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	4.44^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	4.03^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	3.95^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	3.60^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	3.90^Ref	IPmax (eV)	-
B (mag)	12.71^Ref	WISE W4 (mag)	3.74^Ref	[O III] lines	-
V (mag)	10.81^Ref	IRAS 12μm (Jy)	1.22^Ref	He II lines	-
R (mag)	-	IRAS 25μm (Jy)	3.28^Ref	[Fe VII] lines	-
I (mag)	-	IRAS 60μm (Jy)	0.40^Ref	O VI lines	-
BP (mag)	10.96^Ref	IRAS 100μm (Jy)	1.19^Ref
G (mag)	8.89^Ref	AKARI S09 (Jy)	1.53^Ref
RP (mag)	7.54^Ref	AKARI S18 (Jy)	0.39^Ref

Orbit

Orbital period (days)	-	γ velocity (km/h)	29.77±0.46^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	-	Mass (M_⊙)	-	Pulsation	-
Eff. temperature (K)	-	Radius (R_⊙)	-	Type	-
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	accreting-only^Ref	Radius (R_⊙)	-	Accretion disk	-
Eff. temperature (K)	-	Luminosity (L_⊙)	-
Lower limit (K)	-
Upper limit (K)	-

Links

SIMBAD CDS Portal

Notes

Suspected of having a symbiotic nature by Jia et al. (2023) based on the machine-learning search. The spectra from the SDSS survey suggest an accreting-only nature. SR variability with a period of 359 days is reported by Christy et al. (2023).

References

Christy, C. T., Jayasinghe, T., Stanek, K. Z. et al., 2023, MNRAS, 519, 4, 5271, 2023MNRAS.519.5271C
Jia, Y., Guo, S., Zhu, C. et al., 2023, RAA, 23, 10, 105012, 2023RAA....23j5012J

LAMOST J064655.70+403923.1