AE Cir

CONFIRMED MILKY WAY
 
Constellation
Circinus
Equatorial coordinates
α = 14 44 51.316
δ = -69 23 34.622
Galactic coordinates
l = 312.6671°
b = -8.6936°

Suspected 1989Ref
Confirmed 2008Ref
Symbiotic IR type SRef
Hot component type shell-burningRef
Outbursts YesRef - Z AndRef

Identifiers

AE Cir IRAS - GSC2.4.2 S7UY009737 AAVSO 000-BCV-475
SIMBAD V* AE Cir Pan-STARRS - SAO - VSX 9458
GAIA DR3 5799841957262188928 SkyMapper 144451.33-692334.5 WRAY 15-1240 GCVS AE Cir
2MASS J14445133-6923345 HIP - Hen 3-1025 BD -
WISE J144451.31-692334.5 TYC - ESO - HD -

Symbiotic Catalogs

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

Position

Right ascension (°) 221.2138Ref Parallax (mas) 0.114±0.022Ref Reddening E(B-V) (mag) 0.23±0.0Ref, Note
Declination (°) -69.3930Ref Distance (kpc) 9.4Ref
8.01Ref, Note, 7.77Ref, Note
   
Galactic longitude (°) 312.6671Ref Proper motion in α (mas/yr) -4.94±0.02Ref    
Galactic latitude (°) -8.6936Ref Proper motion in δ (mas/yr) -1.34±0.02Ref    

Observations

X-Ray - IR type SRef Radio -
X-Ray type - J (mag) 10.88Ref Flickering -
GALEX FUV (mag) - H (mag) 10.05Ref Outbursts YesRef
GALEX NUV (mag) - K (mag) 9.74Ref Outburst type Z AndRef
IUE NoRef WISE W1 (mag) 9.46Ref Jets -
FUSE NoRef WISE W2 (mag) 9.27Ref Resolved nebula -
U (mag) - WISE W3 (mag) 8.22Ref IPmax (eV) 114Ref
B (mag) 15.37Ref WISE W4 (mag) 7.34Ref [O III] lines -
V (mag) 13.00Ref IRAS 12μm (Jy) - He II lines -
R (mag) - IRAS 25μm (Jy) - [Fe VII] lines -
I (mag) - IRAS 60μm (Jy) - O VI lines YesRef
BP (mag) 13.34Ref IRAS 100μm (Jy) -
G (mag) 12.61Ref AKARI S09 (Jy) -
RP (mag) 11.80Ref AKARI S18 (Jy) -

Orbit

Orbital period (days) 342±15Ref 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 1.1Ref
Orbital ephemeris Min (V) = 2447327.3±3.4 + 342±15 x ERef        

Cool component

Spectral type K5 IIIRef Mass (M) 1.1Ref Pulsation -
Eff. temperature (K) - Radius (R) 99Ref Type -
IR type SRef Luminosity (L) - Pulsation period (days) -
Metallicity [Fe/H] -     Pulsation ephemeris -

Hot component

Type/Spectral type WDRef Mass (M) 1Ref Spin period (min) 27.3Ref
Shell-burning/Accreting-only shell-burningRef Radius (R) - Accretion disk -
Eff. temperature (K) - Luminosity (L) -    
Lower limit (K) 114000Ref        
Upper limit (K) 250000Ref        

Links

SIMBAD   CDS Portal


Notes

Discovered as a variable star by Swope (1931), who initially classified it as an R CrB star. Its potential symbiotic nature was suspected by Kilkenny (1989), where H I, He I, He II, and other emission lines were reported. The paper mentioned periodicities of 3900 and 100 days based on visual observations. However, Lawson & Cottrell (1990) argued that the 3900-day period does not represent the long-term variability of the system. Confirming its symbiotic nature, Mennickent et al. (2008) detected O VI 6825 lines in the spectrum and reported repeated outbursts.


References


Last updated: January 13, 2024