2MASS 0036+1821
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.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| 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 | |
| Temperature | 1300–2000 K |
| Rotation | 3.08±0.05 h[2] |
| Other designations | |
2MASS J00361617+1821104;2MASSW J0036159+182110, LSPM J0036+1821, Gaia DR2 2794735086363871360 | |
| Database references | |
| SIMBAD | data |
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.[2] Because of unusually rapid rotation, it is possessing a strong magnetic field over 1000 G at the photosphere level.[3]
External links
References
- Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- Sanghavi, Suniti; Shporer, Avi (2017), PHOTOPOLARIMETRIC CHARACTERISTICS OF BROWN DWARFS, PART I: UNIFORM CLOUD DECKS, arXiv:1705.05041, doi:10.3847/1538-4357/aadf94, S2CID 55544773
- Guenther, E. W.; Zapatero Osorio, M. R.; Mehner, A.; Martín, E. L. (2009), "Short-term spectroscopic monitoring of two cool dwarfs with strong magnetic fields", Astronomy & Astrophysics, 498: 281–287, arXiv:0903.2340, doi:10.1051/0004-6361/200810216, S2CID 18611224
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