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

doi:10.3847/2515-5172/ac1f9c

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

Solar and Stellar Astrophysics 2021-08-24 v1 Earth and Planetary Astrophysics Astrophysics of Galaxies

Authors: Frank Kiwy , Jacqueline Faherty , Aaron Meisner , Adam C. Schneider , Marc Kuchner , J. Davy Kirkpatrick , The Backyard Worlds , : , Planet 9 Collaboration

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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 $58\pm2$ pc. We calculated an angular separation of 7.2" between both components, resulting in a projected physical separation of 418 AU.

Keywords

stellar and substellar companions eclipsing binary stars white dwarfs

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@article{arxiv.2108.10308,
  title  = {Discovery of a low-mass comoving system using NOIRLab Source Catalog DR2},
  author = {Frank Kiwy and Jacqueline Faherty and Aaron Meisner and Adam C. Schneider and Marc Kuchner and J. Davy Kirkpatrick and The Backyard Worlds and : and Planet 9 Collaboration},
  journal= {arXiv preprint arXiv:2108.10308},
  year   = {2021}
}

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

Abstract

Keywords

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