Spectroscopic Analysis of CWISE J151044.74−524923.5, A Wide L Dwarf Companion to the L 262-74 System
Abstract We present the spectroscopy of CWISE J151044.74−524923.5, a wide low-mass companion to the nearby (~24.7 pc) L 262-74 system. Analyzing the near-infrared spectrum obtained with the TripleSpec4 spectrograph on the Southern Astrophysical Research Telescope, we confirm that it is a brown dwarf with unusually red colors. Although this redness can be characteristic of young, low-gravity brown dwarfs, we assess that this object is likely a field object being reddened by factors other than youth. We assign it a spectral type of L6 (pec). Finally, we highlight new TESS data that provide further evidence of the multiplicity of the central system.
Authors
- Adam C. Schneider (ORCID: https://orcid.org/0000-0002-6294-5937)
- Jacqueline K. Faherty (ORCID: https://orcid.org/0000-0001-6251-0573)
- J. Davy Kirkpatrick (ORCID: https://orcid.org/0000-0003-4269-260X)
- Thomas P. Bickle (ORCID: https://orcid.org/0000-0003-2235-761X)
- Federico Marocco (ORCID: https://orcid.org/0000-0001-7519-1700)
- Jonathan Gagné (ORCID: https://orcid.org/0000-0002-2592-9612)
- Mark Popinchalk (ORCID: https://orcid.org/0000-0001-9482-7794)
- Austin Rothermich (ORCID: https://orcid.org/0000-0003-4083-9962)
- Aaron Meisner (ORCID: https://orcid.org/0000-0002-1125-7384)
- Léopold Gramaize (ORCID: https://orcid.org/0000-0002-8960-4964)
- Marc J. Kuchner (ORCID: https://orcid.org/0000-0002-2387-5489)
Publication Details
- Journal
- Research Notes of the AAS
- Published
- 2024-11-29
- DOI
- https://doi.org/10.3847/2515-5172/ad981e
- Primary Topic
- Stellar, planetary, and galactic studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00