New Online Database of Symbiotic Variables: V1534 Sco

Constellation
Scorpius

Equatorial coordinates
α = 17 15 46.874
δ = -31 28 30.372

Galactic coordinates
l = 354.3344°
b = 3.9915°

Suspected	2014^Ref
Confirmed	2018^Ref
Symbiotic IR type	S^Ref
Hot component type	shell-burning^Ref
Outbursts	Yes^Ref - SyRN^Ref

Identifiers

V1534 Sco	IRAS -	GSC2.4.2 S8HL116466	AAVSO 000-BLH-258
SIMBAD V* V1534 Sco	Pan-STARRS -	SAO -	VSX 359987
GAIA DR3 5980446951308348800	SkyMapper 171546.87-312830.3	WRAY -	GCVS V1534 Sco
2MASS J17154687-3128303	HIP -	Hen -	BD -
WISE J171546.88-312831.0	TYC -	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	-	Belzcyński et al. (2001)	-
Gaposchkin (1957)	-	Kenyon (1986)	-	Akras et al. (2019)	V1534 Sco (Conf.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	-

Position

Right ascension (°)	258.9453^Ref	Parallax (mas)	0.113±0.070^Ref	Reddening E(B-V) (mag)	0.93±0.05^Ref ^{, Note}
Declination (°)	-31.4751^Ref	Distance (kpc)	13^Ref 5.50^Ref ^{, Note}, 6.72^Ref ^{, Note}
Galactic longitude (°)	354.3344^Ref	Proper motion in α (mas/yr)	-5.07±0.09^Ref
Galactic latitude (°)	3.9915^Ref	Proper motion in δ (mas/yr)	-3.84±0.05^Ref

Observations

X-Ray	Yes^Ref	IR type	S^Ref	Radio	-
X-Ray type	β^Ref	J (mag)	11.26^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	10.05^Ref	Outbursts	Yes^Ref
GALEX NUV (mag)	-	K (mag)	9.58^Ref	Outburst type	SyRN^Ref
IUE	No^Ref	WISE W1 (mag)	8.79^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	8.91^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	8.65^Ref	IPmax (eV)	13.6^Ref
B (mag)	-	WISE W4 (mag)	8.97^Ref	[O III] lines	No^Ref
V (mag)	-	IRAS 12μm (Jy)	-	He II lines	No^Ref
R (mag)	-	IRAS 25μm (Jy)	-	[Fe VII] lines	No^Ref
I (mag)	-	IRAS 60μm (Jy)	-	O VI lines	No^Ref
BP (mag)	17.91^Ref	IRAS 100μm (Jy)	-
G (mag)	15.57^Ref	AKARI S09 (Jy)	-
RP (mag)	14.09^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	-	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	M5 III^Ref, M6 III^Ref	Mass (M_⊙)	-	Pulsation	-
Eff. temperature (K)	3200±50^Ref	Radius (R_⊙)	-	Type	-
IR type	S^Ref	Luminosity (L_⊙)	-	Pulsation period (days)	-
Metallicity [Fe/H]	-			Pulsation ephemeris	-

Hot component

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

Links

SIMBAD CDS Portal

Notes

Joshi et al. (2014) proposed that the observed outburst was a nova outburst occurring in a symbiotic system, as indicated by infrared observations. Munari et al. (2014) reported a rapid decline in brightness reminiscent of symbiotic recurrent novae. Detailed analyses of the event were subsequently presented by Joshi et al. (2015) and Munari & Banerjee (2018). However, Schaefer (2021) reported the detection of a period of 0.6 days, which they claimed to be the orbital period.

References

Joshi, V., Banerjee, D. P. K., Ashok, N. M. et al., 2015, MNRAS, 452, 4, 3696, 2015MNRAS.452.3696J
Joshi, V., Banerjee, D. P. K., Venkataraman, V. et al., 2014, ATel, 6032, 1, 2014ATel.6032....1J
Munari, U., Banerjee, D. P. K., 2018, MNRAS, 475, 1, 508, 2018MNRAS.475..508M
Munari, U., Dallaporta, S., Castellani, F. et al., 2014, ATel, 6034, 1, 2014ATel.6034....1M
Schaefer, B. E., 2021, RNAAS, 5, 6, 150, 2021RNAAS...5..150S

V1534 Sco