CONFIRMED SMC
|
Identifiers
| SMC3 | GSC – | TYC – | WRAY – |
| SIMBAD NAME SMC Symbiotic star 3 | HIP – | SAO – | Hen – |
| BD – | IRAS – | GAIA DR2 4685877768887752960 | ESO – |
| HD – | 2MASS J00482000-7331521 | WISE J004820.05-733152.0 | AAVSO 000-BJP-582 |
Position
| Right ascension (°) | 12.083424 ± 0.026503ref | Parallax (mas) | – | Reddening E(B-V) (mag) | 0.239 ± 0.051ref |
| Declination (°) | -73.531137 ± 0.021496ref | Distance (kpc) | 62.10 ± 1.90ref | ||
| Galactic longitude (°) | 303.235698 ± 0.021496ref | Proper motion in α (mas/yr) | 0.628144 ± 0.054347ref | ||
| Galactic latitude (°) | -43.595287 ± 0.026503ref | Proper motion in δ (mas/yr) | -1.232339 ± 0.041758ref |
Observations
| U (mag) | 16.66ref | X-Ray | Yesref | Flickering | |
| B (mag) | 16.23ref | X-Ray type | αref | Outbursts | Yesref |
| V (mag) | 14.74ref | IUE | Yes | Type | SyN?ref |
| R (mag) | 14.00ref | IRAS flux at 12 μm (Jy) | IPmax (eV) | 235.0ref | |
| I (mag) | 13.13ref | IRAS flux at 25 μm (Jy) | OVI lines | Yesref | |
| G (mag) | 14.45ref | IRAS flux at 60 μm (Jy) | |||
| J (mag) | 11.94ref | IRAS flux at 100 μm (Jy) | |||
| H (mag) | 11.04ref | WISE W1 (mag) | 10.56ref | ||
| K (mag) | 10.80ref | WISE W2 (mag) | 10.63ref | ||
| L (mag) | WISE W3 (mag) | 10.22ref | |||
| WISE W4 (mag) | 9.28ref | ||||
| Radio | |||||
| Radio flux (mJy) |
Orbit
| Orbital period (days) | 1634 ± 7ref | γ velocity (km/h) | Size of giant’s orbit (AU) | ||
| Eccentricity | RV of giant (km/h) | Separation (AU) | 3.9ref | ||
| Inclination (°) | >60ref 90ref |
Inferior conj. of giant (JD) | Mass function | ||
| Ephemeris type | Min(X-ray)ref | Mass ratio | |||
| Ephemeris T0 (JD) | 2449382 ± 10ref |
Cool component
| Spectral type | M0 IIIref | Mass (M⊙) | 0.8ref 2ref 3ref |
Pulsation | Yesref |
| Eff. temperature (K) | 3700 ± 100ref | Radius (R⊙) | 199-245ref 110ref |
Type | |
| IR type | S🡕, ref | Luminosity (L⊙) | Pulsation period (days) | 110 ± 2ref | |
| Metallicity [Fe/H] | Ephemeris type | ||||
| Ephemeris T0 (JD) |
Hot component
| Type/Spectra | WDref | Mass (M⊙) | 1.35ref >1.18ref 1ref 0.8ref |
Spin period (min) | |
| Eff. temperature (K) | 439000-520000ref 100000-170000ref |
Radius (R⊙) | 0.115ref | Accretion disk | |
| Lower limit (K) | 200000-300000ref | Luminosity (L⊙) | 1200-3500ref 900ref |
||
| Upper limit (K) |
Links
Notes
The star is located in the line of sight to a cluster NGC 269. The WD appears to be very massive because SMC3 is one of the strongest X-ray sources among symbiotic binaries and shows unusually high ionization. The outburst of the system was observed between 1980 and 1981 (Morgan, 1992). According to the analysis of Kato et al. (2013), the giant almost fills its Roche lobe.
References
- Jordan, S., Schmutz, W., Wolff, B., et al., 1996, A&A, 312, 897, 1996A&A…312..897J
- Kahabka, P., 2004, A&A, 416, 57, 2004A&A…416…57K
- Kato, M., Hachisu, I., Mikołajewska, J., 2013, ApJ, 763, 5, 2013ApJ…763….5K
- Morgan, D. H., 1992, MNRAS, 258, 639, 1992MNRAS.258..639M
- Muerset, U., Jordan, S., Wolff, B., 1996, Supersoft X-ray Sources, 251, 1996LNP…472..251M
- Muerset, U., Schild, H., Vogel, M., 1996, A&A, 307, 516, 1996A&A…307..516M
- Muerset, U., Wolff, B., Jordan, S., 1997, A&A, 319, 201, 1997A&A…319..201M
- Muerset, U., Schmid, H. M., 1999, A&AS, 137, 473, 1999A&AS..137..473M
- Orio, M., Zezas, A., Munari, U., et al., 2007, ApJ, 661, 1105, 2007ApJ…661.1105O
- Phillips, J. P., 2007, MNRAS, 376, 1120, 2007MNRAS.376.1120
- Sturm, R., Haberl, F., Greiner, J., et al., 2011, A&A, 529, A152, 2011A&A…529A.152S
- Vogel, M., Morgan, D. H., 1994, A&A, 288, 842, 1994A&A…288..842V
Last updated: