M33SyS J013303.27+303528.3
CONFIRMED
M33
Constellation
Triangulum |
Equatorial coordinates
α = 01 33 03.234
δ = +30 35 28.074 |
Galactic coordinates
l = 133.4290°
b = -31.4309° |
| Suspected |
2017Ref |
| Confirmed |
2017Ref |
| Symbiotic IR type |
- |
| Hot component type |
shell-burningRef |
| Outbursts |
- |
|
|
Symbiotic Catalogs
| Bidelman (1954) |
- |
Allen (1984) |
- |
Belzcyński et al. (2001) |
- |
| Gaposchkin (1957) |
- |
Kenyon (1986) |
- |
Akras et al. (2019) |
M33 SySt-3 (Conf.) |
| Boyarchuk (1969) |
- |
Vaidis (1988, 1991) |
- |
Position
| Right ascension (°) |
23.2635Ref |
Parallax (mas) |
- |
Reddening E(B-V) (mag) |
0.04±0.0Ref, Note |
| Declination (°) |
30.5911Ref |
Distance (kpc) |
847±60Ref -, Note |
|
|
| Galactic longitude (°) |
133.4290Ref |
Proper motion in α (mas/yr) |
- |
|
|
| Galactic latitude (°) |
-31.4309Ref |
Proper motion in δ (mas/yr) |
- |
|
|
Observations
| X-Ray |
NoRef |
IR type |
- |
Radio |
- |
| X-Ray type |
- |
J (mag) |
- |
Flickering |
- |
| GALEX FUV (mag) |
- |
H (mag) |
- |
Outbursts |
- |
| GALEX NUV (mag) |
- |
K (mag) |
- |
Outburst type |
- |
| IUE |
NoRef |
WISE W1 (mag) |
15.31Ref |
Jets |
- |
| FUSE |
NoRef |
WISE W2 (mag) |
15.84Ref |
Resolved nebula |
- |
| U (mag) |
23.52Ref |
WISE W3 (mag) |
12.65Ref |
IPmax (eV) |
114Ref |
| B (mag) |
23.79Ref |
WISE W4 (mag) |
9.23Ref |
[O III] lines |
YesRef |
| V (mag) |
22.12Ref |
IRAS 12μm (Jy) |
0.38Ref |
He II lines |
YesRef |
| R (mag) |
20.74Ref |
IRAS 25μm (Jy) |
0.29Ref |
[Fe VII] lines |
YesRef |
| I (mag) |
19.58Ref |
IRAS 60μm (Jy) |
0.97Ref |
O VI lines |
YesRef |
| BP (mag) |
21.10Ref |
IRAS 100μm (Jy) |
4.89Ref |
|
|
| G (mag) |
20.84Ref |
AKARI S09 (Jy) |
- |
|
|
| RP (mag) |
19.73Ref |
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 |
CNRef |
Mass (M⊙) |
- |
Pulsation |
YesRef |
| Eff. temperature (K) |
- |
Radius (R⊙) |
- |
Type |
low-amplitude SRRef |
| IR type |
- |
Luminosity (L⊙) |
- |
Pulsation period (days) |
100Ref |
| Metallicity [Fe/H] |
- |
|
|
Pulsation ephemeris |
- |
Hot component
| Type/Spectral type |
- |
Mass (M⊙) |
- |
Spin period (min) |
- |
| Shell-burning/Accreting-only |
shell-burningRef |
Radius (R⊙) |
- |
Accretion disk |
- |
| Eff. temperature (K) |
- |
Luminosity (L⊙) |
- |
|
|
| Lower limit (K) |
114000Ref |
|
|
|
|
| Upper limit (K) |
176000Ref |
|
|
|
|
Notes
The light curves of M33SyS J013303.27+303528.3 appear to be dominated by red giant pulsations, with a period of approximately 100 days (Mikołajewska et al., 2017).
References
- Mikołajewska, J., Shara, M. M., Caldwell, N. et al., 2017, MNRAS, 465, 2, 1699, 2017MNRAS.465.1699M
Last updated: January 13, 2019