Discovery of a low-mass comoving system using NOIRLab Source Catalog DR2
Frank Kiwy, Jacqueline Faherty, Aaron Meisner, Adam C. Schneider, Marc, Kuchner, J. Davy Kirkpatrick, The Backyard Worlds: Planet 9 Collaboration
TL;DR
This paper reports the discovery of a low-mass, comoving stellar system with a high proper-motion star and an ultracool companion, identified using the NOIRLab Source Catalog DR2, providing insights into binary star systems.
Contribution
The study introduces a new low-mass comoving system identified through NSC DR2, including detailed characterization of the components and their physical separation.
Findings
System located at 58 pc distance
Angular separation of 7.2 arcseconds
Projected physical separation of 418 AU
Abstract
We present the discovery of a low-mass comoving system found by means of the NOIRLab Source Catalog (NSC) DR2. The system consists of the high proper-motion star LEHPM 5005 and an ultracool companion 2MASS J22410186-4500298 with an estimated spectral type of L2. The primary (LEHPM 5005) is likely a mid-M dwarf but over-luminous for its color, indicating a possible close equal mass binary. According to the Gaia EDR3 parallax of the primary, the system is located at a distance of pc. We calculated an angular separation of 7.2" between both components, resulting in a projected physical separation of 418 AU.
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