Discovery of a low-mass comoving system using NOIRLab Source Catalog DR2

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 $58\pm 2$ pc. We calculated an angular separation of 7.2" between both components, resulting in a projected physical separation of 418 AU.

References in corpus (7)

• The Revised TESS Input Catalog and Candidate Target List
• Unresolved stellar companions with Gaia DR2 astrometry
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• Binary deviations from single object astrometry
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• Brown dwarf census with the Dark Energy Survey year 3 data and the thin disk scale height of early L types

Cited by in corpus (1)

• Discovery of 34 low-mass comoving systems using NOIRLab Source Catalog DR2