Astronomy:2MASS J00361617+1821104
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| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Pisces |
| Right ascension | 00h 36m 16.17s |
| Declination | 18° 21′ 10.4″ |
| Characteristics | |
| Spectral type | L3.5 |
| Apparent magnitude (J) | 12.466 ± 0.027 |
| Apparent magnitude (H) | 11.588 ± 0.029 |
| Apparent magnitude (K) | 11.058 ± 0.021 |
| Astrometry | |
| Radial velocity (Rv) | 19.02 km/s |
| Proper motion (μ) | RA: 901.558 mas/yr Dec.: 124.019 mas/yr |
| Parallax (π) | 114.4167 ± 0.2088[1] mas |
| Distance | 28.51 ± 0.05 ly (8.74 ± 0.02 pc) |
| Details | |
| Radius | 1.01±0.07[2] RJup |
| Temperature | 1300–2000 K |
| Rotation | 3.08±0.05 h[3] |
| Other designations | |
2MASS J00361617+1821104;2MASSW J0036159+182110, LSPM J0036+1821, Gaia DR2 2794735086363871360 | |
| Database references | |
| SIMBAD | data |
2MASS J00361617+1821104 (abbreviated to 2MASS 0036+1821) is a brown dwarf, located in 28.6 light-years from Earth in the constellation Pisces. It was discovered in 2000 by I. Neill Reid et al. Kinematically, it does not belong to any known moving group, been grouped with other "field stars".[4]
2MASS 0036+1821 is of spectral type L3.5, the surface temperature is 1300-2000 Kelvin. As with other brown dwarfs of spectral type L, its spectrum is dominated of metal hydrides and alkali metals. Its position shifts due to its proper motion by 0.9071 arcseconds per year.
The surface of 2MASS 0036+1821 is completely covered by clouds, although cloud deck appear to be thin (less than ten optical depths)[3] Because of unusually rapid rotation, it is possessing a strong magnetic field over 1000 G at the photosphere level,[5] and is well known for its radio emissions.[6]
See also
External links
References
- ↑ Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ Vos, Johanna M.; Biller, Beth A.; Allers, Katelyn N.; Faherty, Jacqueline K.; Liu, Michael C.; Metchev, Stanimir; Eriksson, Simon; Manjavacas, Elena et al. (2020), "Spitzer Variability Properties of Low-gravity L Dwarfs", The Astronomical Journal 160 (1): 38, doi:10.3847/1538-3881/ab9642, Bibcode: 2020AJ....160...38V
- ↑ 3.0 3.1 Sanghavi, Suniti; Shporer, Avi (2018), "Photopolarimetric Characteristics of Brown Dwarfs. I. Uniform Cloud Decks", The Astrophysical Journal 866 (1): 28, doi:10.3847/1538-4357/aadf94, Bibcode: 2018ApJ...866...28S
- ↑ Riedel, Adric R.; Ditomasso, Victoria; Rice, Emily L.; Alam, Munazza K.; Abrahams, Ellianna; Crook, James; Cruz, Kelle L.; Faherty, Jacqueline K. (2019), "Radial Velocities, Space Motions, and Nearby Young Moving Group Memberships of Eleven Candidate Young Brown Dwarfs", The Astronomical Journal 157 (6): 247, doi:10.3847/1538-3881/ab1915, Bibcode: 2019AJ....157..247R
- ↑ Guenther, E. W.; Zapatero-Osorio, María Rosa; Mehner, A.; Martín, Eduardo L. (2009), "Short-term spectroscopic monitoring of two cool dwarfs with strong magnetic fields", Astronomy & Astrophysics 498 (1): 281–287, doi:10.1051/0004-6361/200810216, Bibcode: 2009A&A...498..281G
- ↑ Zic, Andrew; Lynch, Christene; Murphy, Tara; Kaplan, David L.; Chandra, Poonam (February 2019), "Low-frequency GMRT observations of ultra-cool dwarfs", Monthly Notices of the Royal Astronomical Society 483 (1): 614–623, doi:10.1093/mnras/sty3163
Coordinates: 
00h 36m 16.17s, +18° 21′ 10.4″
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