New Online Database of Symbiotic Variables: V399 Pav

Constellation
Pavo

Equatorial coordinates
α = 19 42 25.386
δ = -68 07 35.449

Galactic coordinates
l = 327.6762°
b = -29.7564°

Suspected	1954^Ref
Confirmed	1954^Ref
Symbiotic IR type	S^Ref
Hot component type	shell-burning^Ref
Outbursts	Yes^Ref - Z And^Ref

Identifiers

V399 Pav	IRAS 19373-6814	GSC2.4.2 SAY9000298	AAVSO 000-BFR-535
SIMBAD V* V399 Pav	Pan-STARRS -	SAO -	VSX 137488
GAIA DR3 6426947387671107712	SkyMapper 194225.37-680735.3	WRAY -	GCVS V0399 Pav
2MASS J19422537-6807353	HIP -	Hen 3-1761	BD -
WISE J194225.31-680735.4	TYC 9306-803-1	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	Hen 1761 (Conf.)	Belzcyński et al. (2001)	Hen 3-1761 (Conf.)
Gaposchkin (1957)	Des. 193768 (Conf.)	Kenyon (1986)	Hen 1761 (Conf.)	Akras et al. (2019)	Hen 3-1761 (Conf.)
Boyarchuk (1969)	My 129 (Conf.)	Vaidis (1988, 1991)	NSV 12264 (Conf.)

Position

Right ascension (°)	295.6058^Ref	Parallax (mas)	0.285±0.043^Ref	Reddening E(B-V) (mag)	0.08±0.0^Ref ^{, Note}
Declination (°)	-68.1265^Ref	Distance (kpc)	3.71^Ref 3.24^Ref ^{, Note}, 3.19^Ref ^{, Note}
Galactic longitude (°)	327.6762^Ref	Proper motion in α (mas/yr)	0.54±0.03^Ref
Galactic latitude (°)	-29.7564^Ref	Proper motion in δ (mas/yr)	-6.85±0.04^Ref

Observations

X-Ray	No^Ref	IR type	S^Ref	Radio	No^Ref
X-Ray type	-	J (mag)	6.68^Ref	Flickering	No^Ref
GALEX FUV (mag)	13.81^Ref	H (mag)	5.80^Ref	Outbursts	Yes^Ref
GALEX NUV (mag)	14.66^Ref	K (mag)	5.45^Ref	Outburst type	Z And^Ref
IUE	Yes^Ref	WISE W1 (mag)	5.33^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	5.29^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	5.08^Ref	IPmax (eV)	99^Ref
B (mag)	12.63^Ref	WISE W4 (mag)	4.64^Ref	[O III] lines	Yes^Ref
V (mag)	11.37^Ref	IRAS 12μm (Jy)	0.42^Ref	He II lines	Yes^Ref
R (mag)	-	IRAS 25μm (Jy)	0.27^Ref	[Fe VII] lines	Yes^Ref
I (mag)	-	IRAS 60μm (Jy)	0.40^Ref	O VI lines	No^Ref
BP (mag)	11.46^Ref	IRAS 100μm (Jy)	1.25^Ref
G (mag)	9.92^Ref	AKARI S09 (Jy)	0.45^Ref
RP (mag)	8.69^Ref	AKARI S18 (Jy)	0.15^Ref

Orbit

Orbital period (days)	560^Ref, 559±27^Ref	γ velocity (km/h)	54.9±0.2^Ref, 58.26±1.14^Ref	Size of giant’s orbit (AU)	0.37^Ref
Eccentricity	0.05±0.04^Ref	RV of giant (km/h)	7.3±0.4^Ref	Separation (AU)	-
Inclination (°)	-	Inferior conj. of giant (JD)	2449384.18	Mass function	0.022^Ref
Eclipses	-			Mass ratio	-
Orbital ephemeris	-

Cool component

Spectral type	M5 III^Ref, M5.5 III^Ref	Mass (M_⊙)	-	Pulsation	Yes^Ref
Eff. temperature (K)	3300^Ref	Radius (R_⊙)	-	Type	SR^Ref
IR type	S^Ref	Luminosity (L_⊙)	-	Pulsation period (days)	63±1^Ref
Metallicity [Fe/H]	-0.25±0.08^Ref			Pulsation ephemeris	-

Hot component

Type/Spectral type	WD^Ref	Mass (M_⊙)	-	Spin period (min)	-
Shell-burning/Accreting-only	shell-burning^Ref	Radius (R_⊙)	0.01-0.05^Ref	Accretion disk	-
Eff. temperature (K)	97000-142000^Ref, 90000-160000^Ref	Luminosity (L_⊙)	3700-8700^Ref, 70-200^Ref
Lower limit (K)	-
Upper limit (K)	-

Links

SIMBAD CDS Portal ARAS Database

Notes

Identified as a star with a peculiar spectrum according to observations by Mayall (1951). Subsequent spectroscopic analysis in Thackeray (1954) suggested the symbiotic nature of the object, characterized by the presence of TiO bands and strong emission lines. Optical spectrum revealed emission lines with ionization potential up to 99 eV (Brandi et al., 1998), and N V is visible in the UV spectrum (Gutiérrez-Moreno et al., 1997).

References

Brandi, E., Barba, R., Garcia, L. G. et al., 1998, A&AS, 132, 281, 1998A&AS..132..281B
Brandi, E., García, L. G., Quiroga, C. et al., 2006, BAAA, 49, 132, 2006BAAA...49..132B
Gałan, C., Mikołajewska, J., Hinkle, K. H. et al., 2016, MNRAS, 455, 2, 1282, 2016MNRAS.455.1282G
Gromadzki, M., Mikołajewska, J., Soszyński, I., 2013, AcA, 63, 4, 405, 2013AcA....63..405G
Gutiérrez-Moreno, A., Moreno, H., Costa, E. et al., 1997, ApJ, 485, 1, 359, 1997ApJ...485..359G
Mayall, M. W., 1951, BHarO, 920, 32, 1951BHarO.920...32M
Merc, J., Beck, P. G., Mathur, S. et al., 2023, arXiv, arXiv:2312.16126, 2023arXiv231216126M
Mürset, U., Schmid, H. M., 1999, A&AS, 137, 473, 1999A&AS..137..473M
Thackeray, A. D., 1954, Obs, 74, 258, 1954Obs....74..258T

V399 Pav