New Online Database of Symbiotic Variables: SRWW1

Constellation
Monoceros

Equatorial coordinates
α = 07 15 41.697
δ = -01 52 41.610

Galactic coordinates
l = 217.3801°
b = 4.5326°

Suspected	2016^Ref
Confirmed	-
Symbiotic IR type	D?^Ref
Hot component type	-
Outbursts	-

Identifiers

SRWW1	IRAS 07131-0147	GSC2.4.2 S39R000937	AAVSO -
SIMBAD IRAS 07131-0147	Pan-STARRS 105741089237716578	SAO -	VSX -
GAIA DR3 3108327343185135872	SkyMapper 071541.70-015241.2	WRAY -	GCVS -
2MASS J07154170-0152416	HIP -	Hen -	BD -
WISE J071541.70-015241.6	TYC -	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 (°)	108.9237^Ref	Parallax (mas)	0.790±0.132^Ref	Reddening E(B-V) (mag)	0.12±0.0^Ref ^{, Note}
Declination (°)	-1.8782^Ref	Distance (kpc)	1.25^Ref ^{, Note}, 1.18^Ref ^{, Note}
Galactic longitude (°)	217.3801^Ref	Proper motion in α (mas/yr)	-0.44±0.13^Ref
Galactic latitude (°)	4.5326^Ref	Proper motion in δ (mas/yr)	4.96±0.12^Ref

Observations

X-Ray	-	IR type	D?^Ref	Radio	-
X-Ray type	-	J (mag)	10.21^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	9.50^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	9.08^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	8.00^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	6.61^Ref	Resolved nebula	Yes^Ref
U (mag)	-	WISE W3 (mag)	2.90^Ref	IPmax (eV)	-
B (mag)	16.15^Ref	WISE W4 (mag)	0.88^Ref	[O III] lines	-
V (mag)	14.26^Ref	IRAS 12μm (Jy)	2.59^Ref	He II lines	-
R (mag)	-	IRAS 25μm (Jy)	4.22^Ref	[Fe VII] lines	-
I (mag)	-	IRAS 60μm (Jy)	3.96^Ref	O VI lines	-
BP (mag)	14.71^Ref	IRAS 100μm (Jy)	3.68^Ref
G (mag)	13.24^Ref	AKARI S09 (Jy)	1.71^Ref
RP (mag)	11.77^Ref	AKARI S18 (Jy)	3.36^Ref

Orbit

Orbital period (days)	-	γ velocity (km/h)	78.37±1.46^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	M5III^Ref	Mass (M_⊙)	-	Pulsation	-
Eff. temperature (K)	-	Radius (R_⊙)	-	Type	-
IR type	D?^Ref	Luminosity (L_⊙)	-	Pulsation period (days)	-
Metallicity [Fe/H]	-			Pulsation ephemeris	-

Hot component

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

Links

SIMBAD CDS Portal

Notes

Classified as a symbiotic star candidate in the HASH Database of PNe (Parker et al., 2016) as the system exhibits a highly bipolar nebula. The possible binary nature of the central star was also suggested by Alves & Hoard (1996). The object is often considered to be a young proto-planetary nebula with a post-AGB central star.

References

Alves, D. R., Hoard, D. W., 1996, AJ, 112, 230, 1996AJ....112..230A
Parker, Q. A., Bojičić, I. S., Frew, D. J., 2016, JPhCS, 728, 3, 032008, 2016JPhCS.728c2008P
Scarrott, S. M., Rolph, C. D., Wolstencroft, R. D. et al., 1990, MNRAS, 245, 484, 1990MNRAS.245..484S

SRWW1