Astronomy:GSC 06214-00210 b
 GSC 06214-00210 b (lower left) with its host star, imaged by JWST/MIRI | |
| Discovery | |
|---|---|
| Discovery date | 2010 |
| Direct imaging | |
| Orbital characteristics | |
| 320 | |
| Orbital period | 6037.4 |
| Star | GSC 06214-00210 |
| Physical characteristics | |
| Mean radius | 1.8 |
| Mass | 16 |
| Physics | 2200 |
GSC 06214-00210 b is a gas giant exoplanet orbiting the K-type star called GSC 06214-00210 which is located approximately 356 light-years from Earth in the constellation Scorpius.[1][2][3]
Discovery
GSC 06214-00210 b along with 1RXS J160929.1−210524 b was first reported in 2010 as part of an adaptive optics imaging survey targeting wide companions (~50–500 AU) to solar-type stars in the Upper Scorpius association.[4] The discovery paper, published in 2011, identified it as a ~14 Jupiter-mass companion and confirmed its comoving status with the host star.[4] Follow-up spectroscopy observations in the same year refined its properties and also the spectral type of L0±1, with multiple signs of youth.[1]
Characteristics
Near-infrared spectroscopy revealed exceptionally strong Paschen β emission (equivalent width −11.4 ± 0.3 Å), indicating the presence of a circumplanetary accretion disk.[1]
Subsequent studies have documented variability in the H I Paschen β emission line on timescales from minutes to decades, with moderate flux changes (<50%) on short scales and larger variations (up to ~1000%) over years, resembling classical T Tauri stars.[5] Line profiles for GSC 06214-00210 b and GQ Lupi b and for GSC 06214-00210 b, they are consistent with both magnetospheric accretion and shock models, though shock models are favored in the brightest epochs.[5]
See also
References
- ↑ 1.0 1.1 1.2 Bowler, Brendan P.; Liu, Michael C.; Kraus, Adam L.; Mann, Andrew W.; Ireland, Michael J. (2011-12-20). "A DISK AROUND THE PLANETARY-MASS COMPANION GSC 06214-00210 b: CLUES ABOUT THE FORMATION OF GAS GIANTS ON WIDE ORBITS". The Astrophysical Journal 743 (2): 148. doi:10.1088/0004-637X/743/2/148. ISSN 0004-637X. https://iopscience.iop.org/article/10.1088/0004-637X/743/2/148.
- ↑ "GSC 06214-00210 b". https://science.nasa.gov/exoplanet-catalog/gsc-06214-00210-b/.
- ↑ "GSC 6214 210 b". https://exoplanet.eu/catalog/gsc_6214_210_b--771/.
- ↑ 4.0 4.1 Ireland, M. J.; Kraus, A.; Martinache, F.; Law, N.; Hillenbrand, L. A. (2011). "Two Wide Planetary-mass Companions to Solar-type Stars in Upper Scorpius" (in en). The Astrophysical Journal 726 (2): 113. doi:10.1088/0004-637X/726/2/113. ISSN 0004-637X. https://ui.adsabs.harvard.edu/abs/2011ApJ...726..113I/abstract.
- ↑ 5.0 5.1 Demars, D.; Bonnefoy, M.; Dougados, C.; Aoyama, Y.; Thanathibodee, T.; Marleau, G.-D.; Tremblin, P.; Delorme, P. et al. (2023). "Emission line variability of young 10–30 M Jup companions: I. The case of GQ Lup b and GSC 06214-00210 b". Astronomy & Astrophysics 676: A123. doi:10.1051/0004-6361/202346221. ISSN 0004-6361. https://www.aanda.org/10.1051/0004-6361/202346221.
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