2MASS J01032236-7204109
POSSIBLE
SMC
Constellation
Tucana |
Equatorial coordinates
α = 01 03 22.342
δ = -72 04 10.893 |
Galactic coordinates
l = 301.6328°
b = -45.0284° |
| Suspected |
2014Ref |
| Confirmed |
- |
| Symbiotic IR type |
S?Ref |
| Hot component type |
shell-burning?Ref |
| Outbursts |
- |
|
|
Symbiotic Catalogs
| Bidelman (1954) |
- |
Allen (1984) |
- |
Belzcyński et al. (2001) |
- |
| Gaposchkin (1957) |
- |
Kenyon (1986) |
- |
Akras et al. (2019) |
SMC SySt-12 (Susp.) |
| Boyarchuk (1969) |
- |
Vaidis (1988, 1991) |
- |
Position
| Right ascension (°) |
15.8431Ref |
Parallax (mas) |
0.071±0.081Ref |
Reddening E(B-V) (mag) |
0.5±0.09Ref, Note |
| Declination (°) |
-72.0697Ref |
Distance (kpc) |
62.1±1.9Ref
5.80Ref, Note, 6.02Ref, Note |
|
|
| Galactic longitude (°) |
301.6328Ref |
Proper motion in α (mas/yr) |
0.03±0.10Ref |
|
|
| Galactic latitude (°) |
-45.0284Ref |
Proper motion in δ (mas/yr) |
-1.61±0.09Ref |
|
|
Observations
| X-Ray |
NoRef |
IR type |
S?Ref |
Radio |
- |
| X-Ray type |
- |
J (mag) |
14.98Ref |
Flickering |
- |
| GALEX FUV (mag) |
- |
H (mag) |
14.49Ref |
Outbursts |
- |
| GALEX NUV (mag) |
- |
K (mag) |
14.33Ref |
Outburst type |
- |
| IUE |
NoRef |
WISE W1 (mag) |
14.23Ref |
Jets |
- |
| FUSE |
NoRef |
WISE W2 (mag) |
14.55Ref |
Resolved nebula |
- |
| U (mag) |
18.14Ref |
WISE W3 (mag) |
12.16Ref |
IPmax (eV) |
35.1Ref |
| B (mag) |
17.75Ref |
WISE W4 (mag) |
8.21Ref |
[O III] lines |
YesRef |
| V (mag) |
16.78Ref |
IRAS 12μm (Jy) |
- |
He II lines |
NoRef |
| R (mag) |
- |
IRAS 25μm (Jy) |
- |
[Fe VII] lines |
NoRef |
| I (mag) |
15.74Ref |
IRAS 60μm (Jy) |
- |
O VI lines |
NoRef |
| BP (mag) |
16.98Ref |
IRAS 100μm (Jy) |
- |
|
|
| G (mag) |
16.59Ref |
AKARI S09 (Jy) |
- |
|
|
| RP (mag) |
15.78Ref |
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 |
- |
Mass (M⊙) |
- |
Pulsation |
- |
| Eff. temperature (K) |
- |
Radius (R⊙) |
- |
Type |
- |
| IR type |
S?Ref |
Luminosity (L⊙) |
1003Ref |
Pulsation period (days) |
- |
| Metallicity [Fe/H] |
- |
|
|
Pulsation ephemeris |
- |
Hot component
| Type/Spectral type |
- |
Mass (M⊙) |
- |
Spin period (min) |
- |
| Shell-burning/Accreting-only |
shell-burning?Ref |
Radius (R⊙) |
- |
Accretion disk |
- |
| Eff. temperature (K) |
- |
Luminosity (L⊙) |
- |
|
|
| Lower limit (K) |
- |
|
|
|
|
| Upper limit (K) |
- |
|
|
|
|
Notes
The star was classified as a likely symbiotic star by Kamath et al. (2014). The classification was based on the analysis of its spectra, which showed a photosphere of a cool star with a red continuum and strong emission lines.
References
- Akras, S., Guzman-Ramirez, L., Leal-Ferreira, M. L. et al., 2019, ApJS, 240, 2, 21, 2019ApJS..240...21A
- Kamath, D., Wood, P. R., van Winckel, H., 2014, MNRAS, 439, 3, 2211, 2014MNRAS.439.2211K
Last updated: May 2, 2019