LMC N67
        
      
        
  
    
    
    CONFIRMED
    LMC  
    
Constellation 
Dorado | 
Equatorial coordinates 
α = 05 36 07.580 
δ =  -64 43 21.333 | 
Galactic coordinates 
l = 274.3535°  
b = -32.3418°  | 
 
  
| Suspected | 
1989Ref | 
 
| Confirmed | 
1989Ref | 
 
| Symbiotic IR type | 
SRef | 
 
| Hot component type | 
shell-burningRef | 
 
| Outbursts | 
- | 
 
 
   | 
    
      
      
      
     | 
  
     
    
    
      
      
  Symbiotic Catalogs
  
| Bidelman (1954) | 
- | 
Allen (1984) | 
- | 
Belzcyński et al. (2001) | 
LMC N67 (Conf.) | 
| Gaposchkin (1957) | 
- | 
Kenyon (1986) | 
- | 
Akras et al. (2019) | 
LMC N67 (Conf.) | 
| Boyarchuk (1969) | 
- | 
Vaidis (1988, 1991) | 
LMC C495 (Conf.) | 
   
  
  
Position
| Right ascension (°) | 
84.0316Ref | 
Parallax (mas) | 
-0.029±0.026Ref | 
Reddening E(B-V) (mag) | 
0.05±0.0Ref, Note | 
| Declination (°) | 
-64.7226Ref | 
Distance (kpc) | 
49.97±0.19Ref 17.07Ref, Note, 10.52Ref, Note | 
  | 
  | 
| Galactic longitude (°) | 
274.3535Ref | 
Proper motion in α (mas/yr) | 
1.51±0.04Ref | 
  | 
  | 
| Galactic latitude (°) | 
-32.3418Ref | 
Proper motion in δ (mas/yr) | 
0.34±0.03Ref | 
  | 
  | 
 
  
  
Observations
  
     | X-Ray | 
     NoRef | 
     IR type | 
     SRef | 
     Radio | 
     - | 
   
   
     | X-Ray type | 
     - | 
     J (mag) | 
     12.67Ref | 
     Flickering | 
     - | 
   
   
     | GALEX FUV (mag) | 
     18.22Ref | 
     H (mag) | 
     11.85Ref | 
     Outbursts | 
     - | 
   
   
     | GALEX NUV (mag) | 
     19.10Ref | 
     K (mag) | 
     11.46Ref | 
     Outburst type | 
     - | 
   
   
     | IUE | 
     NoRef | 
     WISE W1 (mag) | 
     11.08Ref | 
     Jets | 
     - | 
   
   
     | FUSE | 
     YesRef | 
     WISE W2 (mag) | 
     11.12Ref | 
     Resolved nebula | 
     - | 
   
   
     | U (mag) | 
     - | 
     WISE W3 (mag) | 
     10.61Ref | 
     IPmax (eV) | 
     114Ref | 
   
   
     | B (mag) | 
     16.18Ref | 
     WISE W4 (mag) | 
     9.58Ref | 
     [O III] lines | 
     NoRef | 
   
   
     | V (mag) | 
     15.35Ref | 
     IRAS 12μm (Jy) | 
     - | 
     He II lines | 
     YesRef | 
   
   
     | R (mag) | 
     14.70Ref | 
     IRAS 25μm (Jy) | 
     - | 
     [Fe VII] lines | 
     NoRef | 
   
   
     | I (mag) | 
     12.70Ref | 
     IRAS 60μm (Jy) | 
     - | 
     O VI lines | 
     YesRef | 
   
   
     | BP (mag) | 
     16.04Ref | 
     IRAS 100μm (Jy) | 
     - | 
      | 
      | 
   
   
     | G (mag) | 
     15.21Ref | 
     AKARI S09 (Jy) | 
     - | 
      | 
      | 
   
   
     | RP (mag) | 
     14.30Ref | 
     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 | 
Yes?Ref | 
  | 
  | 
Mass ratio | 
- | 
| Orbital ephemeris | 
- | 
  | 
  | 
  | 
  | 
 
Cool component
| Spectral type | 
C3.2Ref | 
Mass (M⊙) | 
- | 
Pulsation | 
YesRef | 
| Eff. temperature (K) | 
3350Ref | 
Radius (R⊙) | 
170Ref | 
Type | 
OGLE Small Amplitude Red GiantRef | 
| IR type | 
SRef | 
Luminosity (L⊙) | 
3300Ref | 
Pulsation period (days) | 
45±5Ref | 
| Metallicity [Fe/H] | 
- | 
  | 
  | 
Pulsation ephemeris | 
Min(I) = 2455513±1 + 45±5 x ERef | 
 
Hot component
| Type/Spectral type | 
- | 
Mass (M⊙) | 
- | 
Spin period (min) | 
- | 
  | Shell-burning/Accreting-only | 
  shell-burningRef | 
Radius (R⊙) | 
0.082Ref | 
Accretion disk | 
- | 
  | Eff. temperature (K) | 
  130000±30000Ref,  100000-160000Ref | 
Luminosity (L⊙) | 
2000±1000Ref,  800-3000Ref | 
  | 
  | 
  | Lower limit (K) | 
  - | 
  | 
  | 
  | 
  | 
| Upper limit (K) | 
- | 
  | 
  | 
  | 
  | 
 
Notes
LMC N67 is identified as a carbon symbiotic star. In Angeloni et al. (2014), it was noted that the observed light curve likely exhibits eclipses.
 
References
- Akras, S., Guzman-Ramirez, L., Leal-Ferreira, M. L. et al., 2019, ApJS, 240, 2, 21, 2019ApJS..240...21A
 
- Angeloni, R., Ferreira Lopes, C. E., Masetti, N. et al., 2014, MNRAS, 438, 1, 35, 2014MNRAS.438...35A
 
- Cowley, A. P., Hartwick, F. D. A., 1989, PASP, 101, 917, 1989PASP..101..917C
 
- Morgan, D. H., 1992, MNRAS, 258, 639, 1992MNRAS.258..639M
 
- Mürset, U., Schild, H., Vogel, M., 1996, A&A, 307, 516, 1996A&A...307..516M
 
- Vogel, M., Morgan, D. H., 1994, A&A, 288, 842, 1994A&A...288..842V
 
 
Last updated: May 2, 2019