SMP LMC 31

SUSPECTED LMC  

Equatorial coordinates
α =  77.334202 ± 0.111900 | 05 09 20.204408
δ =  -67.790305 ± 0.144700 | -67 47 25.106838
 
Constellation Dorado
Symbiotic IR Type S
Spectral Type  
Magnitude range (V)  
Outbursts No

Identifiers

SMP LMC 31 GSC TYC WRAY
SIMBAD SMP LMC 31 HIP SAO Hen
BD – IRAS 05094-6751 GAIA DR2 4661418926551947008 ESO
HD 2MASS J05092022-6747250 WISE J050920.19-674725.0 AAVSO

Position

Right ascension (°) 77.334202 ± 0.111900ref   Parallax (mas) Reddening E(B-V) (mag) 0.234 ± 0.049ref
Declination (°) -67.790305 ± 0.144700ref Distance (kpc) 49.97 ± 0.19ref    
Galactic longitude (°) 278.466310 ± 0.144700ref Proper motion in α (mas/yr) 1.500 ± 0.217ref    
Galactic latitude (°) -34.549387 ± 0.111900ref Proper motion in δ (mas/yr) 0.559 ± 0.277ref    

Observations

U (mag) 17.00ref X-Ray   Flickering  
B (mag) 17.82ref X-Ray type   Outbursts No
V (mag) 17.12ref IUE No Type  
R (mag) 15.47ref IRAS flux at 12 μm (Jy) <0.250ref IPmax (eV)  
I (mag) 16.58ref IRAS flux at 25 μm (Jy) 0.435ref OVI lines  
G (mag) 16.70ref IRAS flux at 60 μm (Jy) <2.39ref    
J (mag) 15.83ref IRAS flux at 100 μm (Jy) <12.8ref    
H (mag) 15.36ref WISE W1 (mag) 12.30ref    
K (mag) 14.40ref WISE W2 (mag) 11.05ref    
L (mag)   WISE W3 (mag) 6.06ref    
    WISE W4 (mag) 3.33ref    
    Radio      
    Radio flux (mJy)      

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  
Ephemeris type       Mass ratio  
Ephemeris T(JD)          

Cool component

Spectral type   Mass (M)   Pulsation  
Eff. temperature (K) 2800ref Radius (R)   Type  
IR type Sref Luminosity (L)   Pulsation period (days)  
Metallicity [Fe/H]       Ephemeris type  
        Ephemeris T(JD)  

Hot component

Type/Spectra   Mass (M)   Spin period (min)  
Eff. temperature (K)   Radius (R)   Accretion disk  
Lower limit (K)   Luminosity (L)      
Upper limit (K)          

Links

SIMBAD     CDS Portal


Notes

Suspected to be a symbiotic binary in Iłkiewicz & Mikołajewska (2017) based on the position of the star in the [O III] diagnostic diagrams.


References

Last updated: Jan 14, 2019 @ 11:25 am