PPA J1807-3158
LIKELY
MILKY WAY
Constellation
Sagittarius |
Equatorial coordinates
α = 18 07 19.077
δ = -31 58 08.083 |
Galactic coordinates
l = 359.7155°
b = -5.5650° |
| Suspected |
2013Ref |
| Confirmed |
- |
| Symbiotic IR type |
D?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) |
PPA 1807-3158 (Susp.) |
| Boyarchuk (1969) |
- |
Vaidis (1988, 1991) |
- |
Position
| Right ascension (°) |
271.8295Ref |
Parallax (mas) |
0.112±0.146Ref |
Reddening E(B-V) (mag) |
0.43±0.02Ref, Note |
| Declination (°) |
-31.9689Ref |
Distance (kpc) |
6.49Ref, Note, 5.31Ref, Note |
|
|
| Galactic longitude (°) |
359.7155Ref |
Proper motion in α (mas/yr) |
-4.30±0.19Ref |
|
|
| Galactic latitude (°) |
-5.5650Ref |
Proper motion in δ (mas/yr) |
-5.84±0.13Ref |
|
|
Observations
| X-Ray |
- |
IR type |
D?Ref |
Radio |
- |
| X-Ray type |
- |
J (mag) |
14.41Ref |
Flickering |
- |
| GALEX FUV (mag) |
- |
H (mag) |
14.00Ref |
Outbursts |
- |
| GALEX NUV (mag) |
- |
K (mag) |
12.31Ref |
Outburst type |
- |
| IUE |
NoRef |
WISE W1 (mag) |
10.53Ref |
Jets |
- |
| FUSE |
NoRef |
WISE W2 (mag) |
9.35Ref |
Resolved nebula |
- |
| U (mag) |
- |
WISE W3 (mag) |
6.22Ref |
IPmax (eV) |
14.5Ref |
| B (mag) |
- |
WISE W4 (mag) |
4.36Ref |
[O III] lines |
NoRef |
| V (mag) |
- |
IRAS 12μm (Jy) |
- |
He II lines |
NoRef |
| R (mag) |
- |
IRAS 25μm (Jy) |
- |
[Fe VII] lines |
NoRef |
| I (mag) |
- |
IRAS 60μm (Jy) |
- |
O VI lines |
NoRef |
| BP (mag) |
17.80Ref |
IRAS 100μm (Jy) |
- |
|
|
| G (mag) |
17.59Ref |
AKARI S09 (Jy) |
0.14Ref |
|
|
| RP (mag) |
16.79Ref |
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 |
D?Ref |
Luminosity (L⊙) |
- |
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 red 2MASS colors and OGLE light curve of this object are characteristic of D-type symbiotics. However, the critical features necessary to confirm a D-type classification are absent (Miszalski et al., 2013).
References
- Miszalski, B., Mikołajewska, J., Udalski, A., 2013, MNRAS, 432, 4, 3186, 2013MNRAS.432.3186M
Last updated: November 5, 2019