2MASS J03552337+1133437
| Observation data Epoch J2000[1] Equinox J2000[1] | |
|---|---|
| Constellation | Taurus |
| Right ascension | 03h 55m 23.374s[2] |
| Declination | +11° 33′ 43.80″[2] |
| Characteristics | |
| Evolutionary stage | brown dwarf |
| Spectral type | L5γ[3] |
| 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[1] km/s |
| Proper motion (μ) | RA: 223.182 mas/yr[2] Dec.: -631.303 mas/yr[2] |
| Parallax (π) | 109.1381±0.4833 mas[2] |
| Distance | 29.9 ± 0.1 ly (9.16 ± 0.04 pc) |
| Details[4] | |
| Mass | 30.3±6.8 MJup |
| Radius | 1.21±0.08 RJup |
| Luminosity | (8.47±0.12)×10−5 L☉ |
| Surface gravity (log g) | 4.71±0.17 cgs |
| Temperature | 1,573±51 K |
| Age | 133+15 −20 Myr |
| Other designations | |
| EPIC 210327027, 2MASS J03552337+1133437, WISEA J035523.53+113337.2, BNA 3[1] | |
| Database references | |
| SIMBAD | data |
2MASS J03552337+1133437 (2MASS J0355+11) is a nearby brown dwarf of spectral type L5γ,[3] located in the constellation Taurus at approximately 29.9 light-years from Earth.[2]
Characteristics
2MASS J0355+11 was discovered in 2006 by Reid et al.[5] It is young, has a low surface gravity of 104.71 cgs and a red spectral energy distribution compared to field brown dwarfs.[6] It belongs to the AB Doradus moving group, which is 133 million years old. At this age it would have a mass of about 31 MJ and a radius of 1.21 RJ. Its bolometric luminosity is of 8.47×10−5 L☉, which together with its radius, implies an effective temperature of 1,573 K.[4] It has a very red color thought to be caused by photospheric dust.[6]
A study with James Webb Space Telescope's MIRI instrument found silicate features that are shifted to bluer wavelengths compared to other brown dwarfs in the same sample. The researchers found a 10% flux difference in the mid-infrared between JWST and Spitzer spectra. But it is not clear if this is due systematic uncertainties between the instruments or real variability. Multiple MIRI observations are needed to confirm this variability.[4]
It is a radio-quiet brown dwarf, indicating an absence of stellar flares.[7] Its carbon to oxygen ratio, equal to 0.56, is similar to that of the Sun.[8]
A 2010 search for companions to L dwarfs identified this object as a candidate binary system.[9]
The interstellar comet 2I/Borisov passed 1.4 light-years (0.44 parsecs) from 2MASS J0355+11 280 thousand years before arriving in the Solar System.[10]
See also
References
- 1 2 3 4 "2MASS J03552337+1133437 — Brown Dwarf (M<0.08solMass)". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2013-09-24.
- 1 2 3 4 5 6 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- 1 2 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.
- 1 2 3 Lam, M. B. (25 Mar 2026). "Clouds with a silicate lining: Using JWST spectra to probe atmospheric diversity in young AB Dor L dwarfs". arXiv:2603.24662 [astro-ph.SR].
- ↑ 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.
- 1 2 Faherty, Jacqueline K.; Rice, Emily L.; Cruz, Kelle L.; Mamajek, Eric E.; Núñez, Alejandro (2013-01-01). "2MASS J035523.37+113343.7: A Young, Dusty, Nearby, Isolated Brown Dwarf Resembling a Giant Exoplanet". The Astronomical Journal. 145 (1): 2. arXiv:1206.5519. Bibcode:2013AJ....145....2F. doi:10.1088/0004-6256/145/1/2. ISSN 0004-6256. PMC 6294310. PMID 30555172.
- ↑ Richey-Yowell, Tyler; Kao, Melodie M.; Pineda, J. Sebastian; Shkolnik, Evgenya L.; Hallinan, Gregg (2020). "On the Correlation between L Dwarf Optical and Infrared Variability and Radio Aurorae". The Astrophysical Journal. 903 (1): 74. arXiv:2009.05590. Bibcode:2020ApJ...903...74R. doi:10.3847/1538-4357/abb826. S2CID 221655541.
- ↑ Zhang, Yapeng; Snellen, Ignas A. G.; Mollière, Paul (2021). "The 12CO/13CO isotopologue ratio of a young, isolated brown dwarf". Astronomy & Astrophysics. 656: A76. arXiv:2109.11569. doi:10.1051/0004-6361/202141502. S2CID 237635036.
- ↑ Bernat, David; Bouchez, Antonin H.; et al. (June 2010). "A Close Companion Search Around L Dwarfs Using Aperture Masking Interferometry and Palomar Laser Guide Star Adaptive Optics". The Astrophysical Journal. 715 (2): 724–735. arXiv:1004.0223. Bibcode:2010ApJ...715..724B. doi:10.1088/0004-637X/715/2/724.
- ↑ Hallatt, Tim; Wiegert, Paul (2019). "The Dynamics of Interstellar Asteroids and Comets within the Galaxy: An Assessment of Local Candidate Source Regions for 1I/'Oumuamua and 2I/Borisov". The Astronomical Journal. 159 (4): 147. arXiv:1911.02473. doi:10.3847/1538-3881/ab7336. S2CID 207772669.
Further reading
- Blake, Cullen H.; Charbonneau, David; White, Russel J.; Marley, Mark S.; Saumon, Didier (2007). "Multiepoch Radial Velocity Observations of L Dwarfs". The Astrophysical Journal. 666 (2): 1198–1204. arXiv:0705.3901. Bibcode:2007ApJ...666.1198B. doi:10.1086/520124. S2CID 15975011.
- Schmidt, Sarah J.; Cruz, Kelle L.; Bongiorno, Bethany J.; Liebert, James; Reid, I. Neill (2007). "Activity and Kinematics of Ultracool Dwarfs, Including an Amazing Flare Observation". The Astronomical Journal. 133 (5): 2258–2273. arXiv:astro-ph/0701055. Bibcode:2007AJ....133.2258S. doi:10.1086/512158. S2CID 4809362.
- Reid, I. Neill; Cruz, Kelle L.; Kirkpatrick, J. Davy; Allen, Peter R.; Mungall, F.; Liebert, James; Lowrance, Patrick; Sweet, Anne (2008). "Meeting the Cool Neighbors. X. Ultracool Dwarfs from the 2MASS All-Sky Data Release". The Astronomical Journal. 136 (3): 1290–1311. arXiv:0806.3413. Bibcode:2008AJ....136.1290R. doi:10.1088/0004-6256/136/3/1290.
- Casewell, S. L.; Jameson, R. F.; Burleigh, M. R. (2008). "Proper motions of field L and T dwarfs - II". Monthly Notices of the Royal Astronomical Society. 390 (4): 1517–1526. arXiv:0808.1633. Bibcode:2008MNRAS.390.1517C. doi:10.1111/j.1365-2966.2008.13855.x. S2CID 14863231.
- Faherty, Jacqueline K.; Burgasser, Adam J.; Cruz, Kelle L.; Shara, Michael M.; Walter, Frederick M.; Gelino, Christopher R. (2009). "The Brown Dwarf Kinematics Project I. Proper Motions and Tangential Velocities for a Large Sample of Late-Type M, L, and T Dwarfs". The Astronomical Journal. 137 (1): 1–18. arXiv:0809.3008. Bibcode:2009AJ....137....1F. doi:10.1088/0004-6256/137/1/1. S2CID 119245711.
- Blake, Cullen H.; Charbonneau, David; White, Russel J. (2010). "The NIRSPEC Ultracool Dwarf Radial Velocity Survey". The Astrophysical Journal. 723 (1): 684–706. arXiv:1008.3874. Bibcode:2010ApJ...723..684B. doi:10.1088/0004-637X/723/1/684. S2CID 119271941.
- Faherty, J. K.; Rice, E. L.; Cruz, K. L.; Mamajek, E. E.; Núñez, A. (2013). "2MASS J035523.37+113343.7: A Young, Dusty, Nearby, Isolated Brown Dwarf Resembling a Giant Exoplanet". The Astronomical Journal. 145 (1): 2. arXiv:1206.5519. Bibcode:2013AJ....145....2F. doi:10.1088/0004-6256/145/1/2. PMC 6294310. PMID 30555172.
- Zapatero Osorio, M. R.; Béjar, V. J. S.; Miles-Páez, P.; Peña-Ramírez, K.; Rebolo, R.; Pallé, E. (2014). "Trigonometric parallaxes of young field L dwarfs". Astronomy & Astrophysics. 568: A6. arXiv:1406.1345. Bibcode:2014A&A...568A...6Z. doi:10.1051/0004-6361/201321340. S2CID 118440741.
