LGGS J004032.98+404102.8

SUSPECTED M31  

Equatorial coordinates
α =  10.137307 ± 0.379700| 00 40 32.953787
δ =  40.684083 ± 0.389700 | 40 41 02.661096
 
Constellation Andromeda
Symbiotic IR Type  
Spectral Type RSG+OB?
Magnitude range (V)  
Outbursts No

Identifiers

LGGS J004032.98+404102.8 GSC TYC WRAY
SIMBAD [AMB2011] HII 714 HIP SAO Hen
BD – IRAS  GAIA DR2 381130007666198272 ESO
HD 2MASS J00403304+4041019 WISE J004032.93+404103.0 AAVSO

Position

Right ascension (°) 10.137307 ± 0.379700ref   Parallax (mas) Reddening E(B-V) (mag) 0.345 ± 0.048ref
Declination (°) 40.684083 ± 0.389700ref Distance (kpc) 785.00 ± 25.00ref    
Galactic longitude (°) 120.703700 ± 0.379700ref Proper motion in α (mas/yr)    
Galactic latitude (°) -22.140600 ± 0.379700ref Proper motion in δ (mas/yr)    

Observations

U (mag) 19.09ref X-Ray   Flickering  
B (mag) 20.01ref X-Ray type   Outbursts No
V (mag) 19.70ref IUE No Type  
R (mag)   IRAS flux at 12 μm (Jy)   IPmax (eV)  
I (mag)   IRAS flux at 25 μm (Jy)   OVI lines Noref
G (mag) 19.46ref IRAS flux at 60 μm (Jy)      
J (mag) 18.19ref IRAS flux at 100 μm (Jy)      
H (mag) 16.90ref WISE W1 (mag) 14.46ref    
K (mag) 16.02ref WISE W2 (mag) 13.16ref    
L (mag)   WISE W3 (mag) 10.15ref    
    WISE W4 (mag) 7.44ref    
    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 RSG+OB?ref Mass (M)   Pulsation  
Eff. temperature (K)   Radius (R)   Type  
IR type   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

The star has been suspected of being symbiotic by Neugent et al. (2019). The spectrum is similar to the symbiotic star V3929 Sgr. However, the high luminosity of the object is more typical for red supergiants. Therefore authors proposed that the star is high-mass symbiotic (RSG+OB companion). Previously identified as possible RV Tau star (their object V2285) by Mochejska et al. (1999).


References

  • Mochejska, B. J., Kaluzny, J., Stanek, K. Z., et al., 1999, AJ, 118, 2211, 1999AJ….118.2211M
  • Neugent, K. F., Levesque, E. M., Massey, P., et al., 2019, ApJ, 875, 124, 2019ApJ…875..124N

Last updated: May 11, 2019 @ 1:10 pm