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WISE J031624.35+430709.1

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Coordinates: Sky map 03h 16m 24.35s, +43° 07′ 09.1″
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WISE J031624.35+430709.1

WISE J031624.35+430709.1 is the faint orange object in the center
Credit: unWISE
Observation data
Epoch J2000[1]      Equinox J2000[1]
Constellation Perseus
Right ascension 03h 16m 24.35s[1]
Declination 43° 07′ 09.1″[1]
Characteristics
Spectral type T8[1]
Apparent magnitude (H) 19.70 ± 0.09[1]
Astrometry
Proper motion (μ) RA: 1.0 ± 0.3 mas/yr
Dec.: 372.4 ± 1.5 mas/yr
Parallax (π)73.3 ± 2.8 mas[2]
Distance44 ± 2 ly
(13.6 ± 0.5 pc)
Other designations
WISE J031624.35+430709.1[1]
Database references
SIMBADdata

WISE J031624.35+430709.1 is a brown dwarf of spectral class T8,[1] located in constellation Perseus at approximately 106 light-years from Earth.[1] It was one of the furthest T-class brown dwarfs known. In 2024 a T dwarf about 2 kpc distant, with a low-metallicity was discovered with the JWST. This brown dwarf is called JADES-GS-BD-9.[3] Additional kpc distant T dwarfs were discovered by two teams, with UNCOVER-BD-1 (aka A2744-BD1) being 4.5 or 4.8 kpc distant.[4][5]

Discovery

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WISE J031624.35+430709.1 was discovered in 2012 by Mace et al. from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satellite — NASA infrared-wavelength 40 cm (16 in) space telescope, which mission lasted from December 2009 to February 2011. In March 2013, the discovery paper was published.[6]

Distance

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Currently the most accurate distance estimate of WISE J031624.35+430709.1 is a trigonometric parallax, published in 2019 by Kirkpatrick et al.: 13.6+0.5
−0.5 pc, or 44.5+1.8
−1.6 ly.[2]

References

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  1. ^ a b c d e f g h i Kirkpatrick, J. Davy; Gelino, Christopher R.; Cushing, Michael C.; Mace, Gregory N.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L.; Eisenhardt, Peter R.; McLean, Ian S.; Mainzer, Amy K.; Burgasser, Adam J.; Tinney, Chris G.; Parker, Stephen; Salter, Graeme (2012). "Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function". The Astrophysical Journal. 753 (2): 156. arXiv:1205.2122. Bibcode:2012ApJ...753..156K. doi:10.1088/0004-637X/753/2/156. S2CID 119279752.
  2. ^ a b Kirkpatrick, J. Davy; Martin, Emily C.; Smart, Richard L.; Cayago, Alfred J.; Beichman, Charles A.; Marocco, Federico; et al. (February 2019). "Preliminary Trigonometric Parallaxes of 184 Late-T and Y Dwarfs and an Analysis of the Field Substellar Mass Function into the ""Planetary"" Mass Regime". The Astrophysical Journal Supplement Series. 240 (2): 69. arXiv:1812.01208. Bibcode:2019ApJS..240...19K. doi:10.3847/1538-4365/aaf6af. 19.
  3. ^ Hainline, Kevin N. (30 Sep 2024). "JADES: Spectroscopic Confirmation and Proper Motion for a T-Dwarf at 2 Kiloparsecs". arXiv:2407.08781 [astro-ph].
  4. ^ Langeroodi, Danial; Hjorth, Jens (2023-11-01). "Little Red Dots or Brown Dwarfs? NIRSpec Discovery of Three Distant Brown Dwarfs Masquerading as NIRCam-selected Highly Reddened Active Galactic Nuclei". The Astrophysical Journal. 957 (2): L27. arXiv:2308.10900. Bibcode:2023ApJ...957L..27L. doi:10.3847/2041-8213/acfeec. ISSN 0004-637X.
  5. ^ Burgasser, Adam J.; Bezanson, Rachel; Labbe, Ivo; Brammer, Gabriel; Cutler, Sam E.; Furtak, Lukas J.; Greene, Jenny E.; Gerasimov, Roman; Leja, Joel; Pan, Richard; Price, Sedona H.; Wang, Bingjie; Weaver, John R.; Whitaker, Katherine E.; Fujimoto, Seiji (2024-02-01). "UNCOVER: JWST Spectroscopy of Three Cold Brown Dwarfs at Kiloparsec-scale Distances". The Astrophysical Journal. 962 (2): 177. arXiv:2308.12107. Bibcode:2024ApJ...962..177B. doi:10.3847/1538-4357/ad206f. ISSN 0004-637X.
  6. ^ Mace, Gregory N.; Kirkpatrick, J. Davy; Cushing, Michael C.; Gelino, Christopher R.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L.; Eisenhardt, Peter R.; McLean, Ian S.; Thompson, Maggie A.; mix, Katholeen; Bailey, Vanessa; Beichman, Charles A.; Bloom, Joshua S.; Burgasser, Adam J.; Fortney, Jonathan J.; Hinz, Philip M.; Knox, Russell P.; Lowrance, Patrick J.; Marley, Mark S.; Morley, Caroline V.; Rodigas, Timothy J.; Saumon, Didier; Sheppard, Scott S.; Stock, Nathan D. (2013). "A Study of the Diverse T Dwarf Population Revealed by WISE". The Astrophysical Journal Supplement Series. 205 (6): 1–49. arXiv:1301.3913. Bibcode:2013ApJS..205....6M. doi:10.1088/0067-0049/205/1/6. S2CID 10535516.
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