GJ 3522
 DECam image and CFHT adaptive optics image (lower left) of the resolved outer companion | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cancer |
| Right ascension | 08h 58m 56.3208s |
| Declination | +08° 28′ 26.0681″ |
| Apparent magnitude (V) | 10.98 |
| Characteristics | |
| Evolutionary stage | red dwarf |
| Spectral type | M3.5 |
| Astrometry | |
| Parallax (π) | 147.66 ± 1.98 mas |
| Distance | 22.1 ± 0.3 ly (6.77 ± 0.09 pc) |
| Details | |
| Other designations | |
DEL 2, IRAS 08562+0840, LHS 6158, LTT 12352, 2MASS J08585633+0828259, WDS J08589+0829AB, USNO-B1.0 0984-00186842 | |
| Database references | |
| SIMBAD | data |
GJ 3522 (G 41-14) is a nearby triple star system, consisting out of a short-period double-line spectroscopic binary[1] and an outer companion that was discovered with adaptive optics on the CFHT.[2] The system is 22.09 light-years (6.77 parsec) distant from earth.[3]
The inner binary orbit each other every 7.6 days. Orbiting around the inner binary the outer companion completes an orbit every 5.7 years.[4] The system has a spectral type of M3.5.[2]
The star shows flares in the optical and x-ray. It also shows activity in H-alpha and ultraviolet.[5]
See also
References
- ^ Reid, I. Neill; Gizis, John E. (1997-06-01). "Low-Mass Binaries and the Stellar Luminosity Function". The Astronomical Journal. 113: 2246. doi:10.1086/118436. ISSN 0004-6256.
- ^ a b Delfosse, X.; Forveille, T.; Beuzit, J. -L.; Udry, S.; Mayor, M.; Perrier, C. (1999-04-01). "New neighbours. I. 13 new companions to nearby M dwarfs". Astronomy and Astrophysics. 344: 897–910. doi:10.48550/arXiv.astro-ph/9812008. ISSN 0004-6361.
- ^ Henry, Todd J.; Jao, Wei-Chun; Subasavage, John P.; Beaulieu, Thomas D.; Ianna, Philip A.; Costa, Edgardo; Méndez, René A. (2006-12-01). "The Solar Neighborhood. XVII. Parallax Results from the CTIOPI 0.9 m Program: 20 New Members of the RECONS 10 Parsec Sample". The Astronomical Journal. 132: 2360–2371. doi:10.1086/508233. ISSN 0004-6256.
- ^ Hartkopf, William I.; Tokovinin, Andrei; Mason, Brian D. (2012-02-01). "Speckle Interferometry at SOAR in 2010 and 2011: Measures, Orbits, and Rectilinear Fits". The Astronomical Journal. 143: 42. doi:10.1088/0004-6256/143/2/42. ISSN 0004-6256.
- ^ Pritchard, Joshua; Murphy, Tara; Zic, Andrew; Lynch, Christene; Heald, George; Kaplan, David L; Anderson, Craig; Banfield, Julie; Hale, Catherine; Hotan, Aidan; Lenc, Emil; Leung, James K; McConnell, David; Moss, Vanessa A; Raja, Wasim (2021-02-05). "A circular polarization survey for radio stars with the Australian SKA Pathfinder". Monthly Notices of the Royal Astronomical Society. 502 (4): 5438–5454. doi:10.1093/mnras/stab299. ISSN 0035-8711.