WISEA J114724.10-204021.3: A Free-Floating Planetary Mass Member of the TW Hya Association

  title={WISEA J114724.10-204021.3: A Free-Floating Planetary Mass Member of the TW Hya Association},
  author={Adam C. Schneider and James Windsor and Michael C. Cushing and J. Davy Kirkpatrick and Edward L. Wright},
  journal={arXiv: Solar and Stellar Astrophysics},
We present WISEA J114724.10$-$204021.3, a young, low-mass, high probability member of the TW Hya association. WISEA J114724.10$-$204021.3 was discovered based on its red AllWISE color (W1$-$W2 = 0.63 mag) and extremely red 2MASS $J-K_{\rm S}$ color ($>$ 2.64 mag), the latter of which is confirmed with near-infrared photometry from the VISTA Hemisphere Survey ($J-K_{\rm S}$ = 2.57$\pm$0.03). Follow-up near-infrared spectroscopy shows a spectral type of L7 $\pm$ 1 as well as several spectroscopic… 

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