WISE J135501.90-825838.9 is a Nearby, Young, Extremely Low-mass Substellar Binary

C. A. Theissen; D. C. Bardalez Gagliuffi; J. K. Faherty; J. Gagne; A. J. Burgasser

WISE J135501.90-825838.9 is a Nearby, Young, Extremely Low-mass Substellar Binary

Solar and Stellar Astrophysics 2020-05-15 v1 Earth and Planetary Astrophysics

Authors: C. A. Theissen , D. C. Bardalez Gagliuffi , J. K. Faherty , J. Gagne , A. J. Burgasser

Abstract

We present a parallax solution for WISE J135501.90-825838.9, a spectral binary with spectral types L7+T7.5 and candidate AB Doradus member. Using $WISE$ astrometry, we obtain a distance of $d = 16.7\pm5.3$ pc. This preliminary parallax solution provides further evidence that WISE J135501.90-825838.9 is a member of AB Doradus (130-200 Myr), and when combined with evolutionary models predicts masses of 11 $M_\mathrm{Jup}$ and 9 $M_\mathrm{Jup}$ for both components.

Keywords

brown dwarf spectral binary parallax ab doradus substellar object wise survey

Cite

@article{arxiv.2005.07096,
  title  = {WISE J135501.90-825838.9 is a Nearby, Young, Extremely Low-mass Substellar Binary},
  author = {C. A. Theissen and D. C. Bardalez Gagliuffi and J. K. Faherty and J. Gagne and A. J. Burgasser},
  journal= {arXiv preprint arXiv:2005.07096},
  year   = {2020}
}

Comments

Submitted to RNAAS

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