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2MASS J03552337+1133437 (2MASS J0355+11) is a nearby brown dwarf of spectral type L5γ,[3] located in constellation Taurus at approximately 29.8 light-years from Earth.[4]

2MASS J03552337+1133437
Observation data
Epoch J2000[1]      Equinox J2000[1]
Constellation Taurus
Right ascension 03h 55m 23.370s[1]
Declination 11° 33 43.71[1]
Characteristics
Evolutionary stage brown dwarf
Spectral type L5γ
Apparent magnitude (G) 19.5831
Apparent magnitude (J) 14.05
Apparent magnitude (H) 12.53
Apparent magnitude (K) 11.526
J−H colour index 1.52
J−K colour index 2.52
Astrometry
Radial velocity (Rv)11.92 km/s
Parallax (π)109.6451 ± 0.7368 mas[2]
Distance29.7 ± 0.2 ly
(9.12 ± 0.06 pc)
Other designations
EPIC 210327027, Gaia DR2 3303349202364648320, BNA 3, WISEA J035523.53+113337.2
Database references
SIMBADdata

Characteristics


2MASS J0355+11 was discovered in 2006 by Reid et al.[5]

It is radio-quiet brown dwarf, indicating an absence of stellar flares.[6] Its carbon to oxygen ratio, equals to 0.56, is similar to that of Sun's.[7]

The interstellar comet 2I/Borisov has passed 1.4 light-years (0.44 parsecs) from 2MASS J0355+11 280 thousand years before arriving to the Solar System.[8]


See also



References


  1. "2MASS J03552337+1133437 — Brown Dwarf (M<0.08solMass)". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2013-09-24.
  2. 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.
  3. Cruz, Kelle L.; Kirkpatrick, J. Davy; Burgasser, Adam J. (2009). "Young L Dwarfs Identified in the Field: A Preliminary Low-Gravity, Optical Spectral Sequence from L0 to L5". The Astronomical Journal. 137 (2): 3345–3357. arXiv:0812.0364. Bibcode:2009AJ....137.3345C. doi:10.1088/0004-6256/137/2/3345. S2CID 15376964.
  4. Liu, M. C.; Dupuy, T. J.; Allers, K. N. (2013). "Infrared parallaxes of young field brown dwarfs and connections to directly imaged gas-giant exoplanets". Astronomische Nachrichten. 334 (1–2): 85–88. arXiv:1305.3270. Bibcode:2013AN....334...85L. doi:10.1002/asna.201211783. S2CID 118368180.
  5. Reid, I. Neill; Lewitus, E.; Allen, P. R.; Cruz, Kelle L.; Burgasser, Adam J. (2006). "A Search for Binary Systems among the Nearest L Dwarfs". The Astronomical Journal. 132 (2): 891–901. arXiv:astro-ph/0606331. Bibcode:2006AJ....132..891R. doi:10.1086/505626. S2CID 28828906.
  6. On the Correlation between L Dwarf Optical and Infrared Variability and Radio Aurorae, 2020, arXiv:2009.05590
  7. The 12CO/13CO isotopologue ratio of a young, isolated brown dwarf Possibly distinct formation pathways of super-Jupiters and brown dwarfs, 2021, arXiv:2109.11569
  8. The Dynamics of Interstellar Asteroids and Comets within the Galaxy: an Assessment of Local Candidate Source Regions for 1I/ʻOumuamua and 2I/Borisov, 2019, arXiv:1911.02473

Further reading




На других языках


[de] 2MASS J03552337+1133437

2MASS J03552337+1133437 ist ein Brauner Zwerg im Sternbild Stier. Er wurde 2008 von I. Neill Reid et al. entdeckt. Er gehört der Spektralklasse L6 an. Seine Position verschiebt sich aufgrund seiner Eigenbewegung jährlich um 0,7 Bogensekunden.
- [en] 2MASS J03552337+1133437



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