V471 Per
CONFIRMED
MILKY WAY
Constellation
Perseus |
Equatorial coordinates
α = 01 58 49.665
δ = +52 53 48.426 |
Galactic coordinates
l = 133.1179°
b = -8.6370° |
Suspected |
1966Ref |
Confirmed |
1984Ref |
Symbiotic IR type |
D'Ref |
Hot component type |
shell-burningRef |
Outbursts |
- |
|
|
Symbiotic Catalogs
Bidelman (1954) |
- |
Allen (1984) |
V741 Per (Conf.) |
Belzcyński et al. (2001) |
V471 Per (Conf.) |
Gaposchkin (1957) |
- |
Kenyon (1986) |
V741 Per (Conf.) |
Akras et al. (2019) |
V471 Per (Conf.) |
Boyarchuk (1969) |
VV 8 (Conf.) |
Vaidis (1988, 1991) |
V741 Per (Conf.) |
Position
Right ascension (°) |
29.7069Ref |
Parallax (mas) |
0.383±0.018Ref |
Reddening E(B-V) (mag) |
0.2±0.0Ref, Note |
Declination (°) |
52.8968Ref |
Distance (kpc) |
1.66-3.65Ref 2.51Ref, Note, 2.50Ref, Note |
|
|
Galactic longitude (°) |
133.1179Ref |
Proper motion in α (mas/yr) |
0.46±0.02Ref |
|
|
Galactic latitude (°) |
-8.6370Ref |
Proper motion in δ (mas/yr) |
-2.29±0.02Ref |
|
|
Observations
X-Ray |
NoRef |
IR type |
D'Ref |
Radio |
YesRef |
X-Ray type |
- |
J (mag) |
11.02Ref |
Flickering |
NoRef |
GALEX FUV (mag) |
- |
H (mag) |
10.40Ref |
Outbursts |
- |
GALEX NUV (mag) |
- |
K (mag) |
9.93Ref |
Outburst type |
- |
IUE |
YesRef |
WISE W1 (mag) |
8.74Ref |
Jets |
- |
FUSE |
NoRef |
WISE W2 (mag) |
7.48Ref |
Resolved nebula |
NoRef |
U (mag) |
- |
WISE W3 (mag) |
3.57Ref |
IPmax (eV) |
97.1 (UV)Ref |
B (mag) |
14.04Ref |
WISE W4 (mag) |
1.46Ref |
[O III] lines |
YesRef |
V (mag) |
13.04Ref |
IRAS 12μm (Jy) |
1.53Ref |
He II lines |
NoRef |
R (mag) |
- |
IRAS 25μm (Jy) |
2.70Ref |
[Fe VII] lines |
- |
I (mag) |
- |
IRAS 60μm (Jy) |
1.85Ref |
O VI lines |
NoRef |
BP (mag) |
13.08Ref |
IRAS 100μm (Jy) |
2.16Ref |
|
|
G (mag) |
12.56Ref |
AKARI S09 (Jy) |
0.86Ref |
|
|
RP (mag) |
11.84Ref |
AKARI S18 (Jy) |
1.86Ref |
|
|
Orbit
Orbital period (days) |
7757Ref, 6210Ref, 6150Ref |
γ velocity (km/h) |
-28.36±8.46Ref |
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 |
2.88Ref |
Orbital ephemeris |
Max (B) = 2440460 + 7757 x ERef, Max (B) = 2453115 + 6150 x ERef |
|
|
|
|
Cool component
Spectral type |
G5 IIIRef |
Mass (M⊙) |
2.3Ref |
Pulsation |
- |
Eff. temperature (K) |
- |
Radius (R⊙) |
10Ref |
Type |
- |
IR type |
D'Ref |
Luminosity (L⊙) |
- |
Pulsation period (days) |
- |
Metallicity [Fe/H] |
- |
|
|
Pulsation ephemeris |
- |
Hot component
Type/Spectral type |
- |
Mass (M⊙) |
0.8Ref |
Spin period (min) |
- |
Shell-burning/Accreting-only |
shell-burningRef |
Radius (R⊙) |
0.57Ref |
Accretion disk |
- |
Eff. temperature (K) |
95000Ref, 65000-75000Ref |
Luminosity (L⊙) |
1600-6300Ref |
|
|
Lower limit (K) |
- |
|
|
|
|
Upper limit (K) |
- |
|
|
|
|
Notes
This target is often mentioned as V741 Per in the literature, e.g., also in the catalogs of Allen (1984) and Kenyon (1986), by mistake. Drummond (1980) reported the detection of a period of 4.0002 h in the light curves and suggested that the targets is an eclipsing binary with a short orbital period. Grauer & Bond (1981) did not detect similar period and suggested the orbital period to be longer than a half year. The 4-h period was not detected by Yamasaki et al. (1984) neither. Arkhipova & Noskova (1988) detected slow brightness variations which is supposed to be of an orbital origin (Arkhipova et al., 2008). Munari et al. (2012) also detected 6.4 and 1.18 d variability in the LCs. They suggested that the 2x6.4 d period might be the orbital period of this system (if the red giant is Roche lobe filling).
References
- Adams, T. F., 1975, ApJ, 202, 114, 1975ApJ...202..114A
- Allen, D. A., 1984, PASA, 5, 3, 369, 1984PASA....5..369A
- Arkhipova, V. P., Esipov, V. F., Noskova, R. I. et al., 2008, AstL, 34, 12, 839, 2008AstL...34..839A
- Arkhipova, V. P., Noskova, R. I., 1988, SvAL, 14, 217, 1988SvAL...14..217A
- Blair, W. P., Stencel, R. E., Feibelman, W. A. et al., 1983, ApJS, 53, 573, 1983ApJS...53..573B
- Drummond, J. D., 1980, A&A, 88, L11, 1980A&A....88L..11D
- Feibelman, W. A., 1983, ApJ, 275, 628, 1983ApJ...275..628F
- Grauer, A. D., Bond, H. E., 1981, PASP, 93, 630, 1981PASP...93..630G
- Kenyon, S. J., 1986, Cambridge: University Press, 1, 1986syst.book.....K
- Merc, J., Beck, P. G., Mathur, S. et al., 2023, arXiv, arXiv:2312.16126, 2023arXiv231216126M
- Munari, U., Siviero, A., Tamajo, E. et al., 2012, BaltA, 21, 180, 2012BaltA..21..180M
- O´Dell, C. R., 1966, ApJ, 145, 487, 1966ApJ...145..487O
- Siviero, A., Munari, U., Cherini, G. et al., 2007, BaltA, 16, 52, 2007BaltA..16...52S
- Yamasaki, A., Okazaki, A., Nakagiri, M. et al., 1984, Ap&SS, 104, 1, 181, 1984Ap&SS.104..181Y
- Zipoy, D. M., 1975, ApJ, 201, 397, 1975ApJ...201..397Z
Last updated: January 13, 2024