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arXiv · 2211.02288

Discovery of a Mid-L Dwarf Companion to the L 262-74 System

Léopold Gramaize·Adam C. Schneider·Federico Marocco·Jacqueline K. Faherty·Aaron M. Meisner·J. Davy Kirkpatrick·Mark Popinchalk·Austin Rothermich·Marc J. Kuchner·The Backyard Worlds·:·Planet 9 Collaboration
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Abstract

We present the discovery of CWISE J151044.74$-$524923.5, a wide low-mass companion to the nearby ($\sim$24.7 pc) system L 262-74, which was identified through the Backyard Worlds: Planet 9 citizen science project. We detail the properties of the system, and we assess that this companion is a mid-L dwarf, which will need to be verified spectroscopically. With an angular separation of 74\farcs3, we estimate a projected physical separation of $\sim$1837 au from the central system.

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Léopold Gramaize, Adam C. Schneider, Federico Marocco, Jacqueline K. Faherty, Aaron M. Meisner, J. Davy Kirkpatrick, Mark Popinchalk, Austin Rothermich, Marc J. Kuchner, The Backyard Worlds, :, Planet 9 Collaboration. 2022-11-04. Discovery of a Mid-L Dwarf Companion to the L 262-74 System. https://doi.org/10.3847/2515-5172%2Fac9f3c

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