LMC S154

CONFIRMED LMC
 
Constellation
Mensa
Equatorial coordinates
α = 04 51 50.470
δ = -75 03 35.325
Galactic coordinates
l = 287.3472°
b = -33.7068°

Suspected 1992Ref
Confirmed 1992Ref
Symbiotic IR type SRef
Hot component type shell-burningRef
Outbursts YesRef - SyRNRef

Identifiers

LMC S154 IRAS F04533-7508 GSC2.4.2 S0VX000383 AAVSO 000-BCZ-119
SIMBAD LHA 120-S 154 Pan-STARRS - SAO - VSX 54635
GAIA DR3 4649246748682812032 SkyMapper 045150.45-750335.3 WRAY - GCVS -
2MASS J04515046-7503353 HIP - Hen - BD -
WISE J045150.46-750335.2 TYC - ESO - HD -

Symbiotic Catalogs

Bidelman (1954) - Allen (1984) - Belzcyński et al. (2001) LMC S154 (Conf.)
Gaposchkin (1957) - Kenyon (1986) - Akras et al. (2019) LMC S154 (Conf.)
Boyarchuk (1969) - Vaidis (1988, 1991) -

Position

Right ascension (°) 72.9603Ref Parallax (mas) 0.036±0.029Ref Reddening E(B-V) (mag) 0.11±0.01Ref, Note
Declination (°) -75.0598Ref Distance (kpc) 49.97±0.19Ref
10.44Ref, Note, 10.76Ref, Note
   
Galactic longitude (°) 287.3472Ref Proper motion in α (mas/yr) 2.24±0.04Ref    
Galactic latitude (°) -33.7068Ref Proper motion in δ (mas/yr) -0.13±0.03Ref    

Observations

X-Ray YesRef IR type SRef Radio -
X-Ray type - J (mag) 11.71Ref Flickering -
GALEX FUV (mag) 16.12Ref H (mag) 10.36Ref Outbursts YesRef
GALEX NUV (mag) 17.36Ref K (mag) 9.38Ref Outburst type SyRNRef
IUE YesRef WISE W1 (mag) 8.64Ref Jets -
FUSE YesRef WISE W2 (mag) 7.98Ref Resolved nebula -
U (mag) - WISE W3 (mag) 6.78Ref IPmax (eV) 290.9Ref
B (mag) 12.80Ref WISE W4 (mag) 6.24Ref [O III] lines YesRef
V (mag) 15.70Ref IRAS 12μm (Jy) 0.10Ref He II lines YesRef
R (mag) 14.20Ref IRAS 25μm (Jy) 0.05Ref [Fe VII] lines YesRef
I (mag) 13.20Ref IRAS 60μm (Jy) 0.07Ref O VI lines YesRef
BP (mag) 16.10Ref IRAS 100μm (Jy) 0.78Ref
G (mag) 15.48Ref AKARI S09 (Jy) 0.12Ref
RP (mag) 14.56Ref 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 C2.2Ref Mass (M) 2Ref Pulsation YesRef
Eff. temperature (K) 4000±250Ref Radius (R) 400Ref Type quasi-periodicRef
IR type SRef Luminosity (L) 12000Ref, 12300Ref Pulsation period (days) 250Ref
Metallicity [Fe/H] -     Pulsation ephemeris -

Hot component

Type/Spectral type - Mass (M) - Spin period (min) -
Shell-burning/Accreting-only shell-burningRef Radius (R) 0.092Ref Accretion disk -
Eff. temperature (K) 125000-155000Ref Luminosity (L) 2000-4000Ref    
Lower limit (K) -        
Upper limit (K) -        

Links

SIMBAD   CDS Portal


Notes

The star underwent a transformation in its spectral appearance, transitioning from a low-excitation emission line object to that of a symbiotic star, likely due to the optical thinning of the nebula (Remillard et al., 1992). Subsequent analysis of archival observations in Iłkiewicz et al. (2019) supports the classification of the object as a symbiotic recurrent nova.


References


Last updated: May 2, 2019