WISE J1206+8401 (WISE J120604.38+840110.6, WISE 1206+8401) is a brown dwarf or planetary-mass object, discovered in 2015 with WISE and the Hubble Space Telescope. It has the spectral type Y0.[1]
 WISE J1206+8401 with NIRCam (faint orange "star" in the center), the blue extended region on the lower-right is detector noise | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 12h 06m 08.19s |
| Declination | +84° 01′ 13.10″ |
| Characteristics | |
| Evolutionary stage | brown dwarf |
| Spectral type | Y0[1] |
| Astrometry | |
| Proper motion (μ) | RA: -577.5 ±1.0 mas/yr[2] Dec.: -263.1 ±0.8 mas/yr[2] |
| Parallax (π) | 84.7 ± 2.1 mas[2] |
| Distance | 38.5 ± 1.0 ly (11.8 ± 0.3 pc) |
| Details | |
| Mass | 6−14 MJ[3] 17 ±5[4] MJup |
| Luminosity (bolometric) | 10-6.298 ± 0.023[5] L☉ |
| Surface gravity (log g) | 4.0−4.5[1] cgs |
| Temperature | 499+14 −24[5] K |
| Metallicity | -0.05 − +0.25[3] |
| Age | 0.4−3[1] Gyr |
| Other designations | |
CNS5 2967, WISEA J120604.25+840110.5, WISE J120604.38+840110.6 | |
| Database references | |
| SIMBAD | data |
The object was found to be metal-rich in a work from 2017 and the research team found a mass of 6−14 MJ.[3] A later work from 2023 found a mass of 17 ±5 MJ.[4] It was observed with JWST, using NIRSpec and MIRI spectroscopy. This object is not discussed in detail in this work, but the researchers report the detection of molecular absorption features in their sample, including water vapor, methane, ammonia, carbon monoxide and carbon dioxide. None of their objects have any detection of phosphine.[5] One paper mentions that WISE J1206+8401 does have deeper carbon dioxide and carbon monoxide features, when compared to other Y-dwarfs. This makes this Y-dwarf similar to CWISEP J1047+5457.[6]
See also
editReferences
edit- ^ a b c d Schneider, Adam C.; Cushing, Michael C.; Kirkpatrick, J. Davy; Gelino, Christopher R.; Mace, Gregory N.; Wright, Edward L.; Eisenhardt, Peter R.; Skrutskie, M. F.; Griffith, Roger L.; Marsh, Kenneth A. (2015-05-01). "Hubble Space Telescope Spectroscopy of Brown Dwarfs Discovered with the Wide-field Infrared Survey Explorer". The Astrophysical Journal. 804 (2): 92. arXiv:1502.05365. Bibcode:2015ApJ...804...92S. doi:10.1088/0004-637X/804/2/92. ISSN 0004-637X.
- ^ a b Kirkpatrick, J. Davy; Gelino, Christopher R.; Faherty, Jacqueline K.; Meisner, Aaron M.; Caselden, Dan; Schneider, Adam C.; Marocco, Federico; Cayago, Alfred J.; Smart, R. L.; Eisenhardt, Peter R.; Kuchner, Marc J.; Wright, Edward L.; Cushing, Michael C.; Allers, Katelyn N.; Bardalez Gagliuffi, Daniella C. (2021-03-01). "The Field Substellar Mass Function Based on the Full-sky 20 pc Census of 525 L, T, and Y Dwarfs". The Astrophysical Journal Supplement Series. 253 (1): 7. arXiv:2011.11616. Bibcode:2021ApJS..253....7K. doi:10.3847/1538-4365/abd107. ISSN 0067-0049.
- ^ a b c Leggett, S. K.; Tremblin, P.; Esplin, T. L.; Luhman, K. L.; Morley, Caroline V. (2017-06-01). "The Y-type Brown Dwarfs: Estimates of Mass and Age from New Astrometry, Homogenized Photometry, and Near-infrared Spectroscopy". The Astrophysical Journal. 842 (2): 118. arXiv:1704.03573. Bibcode:2017ApJ...842..118L. doi:10.3847/1538-4357/aa6fb5. ISSN 0004-637X.
- ^ a b Fontanive, Clémence; Bedin, Luigi R.; De Furio, Matthew; Biller, Beth; Anderson, Jay; Bonavita, Mariangela; Allers, Katelyn; Pantoja, Blake (2023-12-01). "An HST survey of 33 T8 to Y1 brown dwarfs: NIR photometry and multiplicity of the coldest isolated objects". Monthly Notices of the Royal Astronomical Society. 526 (2): 1783–1798. arXiv:2309.09923. Bibcode:2023MNRAS.526.1783F. doi:10.1093/mnras/stad2870. ISSN 0035-8711.
- ^ a b c Beiler, Samuel A.; Cushing, Michael C.; Kirkpatrick, J. Davy; Schneider, Adam C.; Mukherjee, Sagnick; Marley, Mark S.; Marocco, Federico; Smart, Richard L. (11 Jul 2024). "Precise Bolometric Luminosities and Effective Temperatures of 23 late-T and Y dwarfs Obtained with JWST". arXiv:2407.08518 [astro-ph.SR].
- ^ Zhijun, Tu; Shu, Wang; Liu, Jifeng (28 September 2024). "Physical Parameters and Properties of 20 Cold Brown Dwarfs in JWST". arXiv:2409.19191 [astro-ph].