WISEA J083011.95+283716.0: A Missing Link Planetary-mass Object

  title={WISEA J083011.95+283716.0: A Missing Link Planetary-mass Object},
  author={Daniella Bardalez Gagliuffi and Jacqueline K. Faherty and Adam C. Schneider and Aaron M. Meisner and Dan Caselden and G. Colin and Samuel J. Goodman and J. Davy Kirkpatrick and Marc J. Kuchner and Jonathan Gagn'e and Sarah E. Logsdon and Adam J. Burgasser and Katelyn Allers and John H. Debes and John P. Wisniewski and Austin Rothermich and Nikolaj Stevnbak Andersen and Melina Th'evenot and Jim Walla},
  journal={The Astrophysical Journal},
We present the discovery of WISEA J083011.95+283716.0, the first Y dwarf candidate identified through the Backyard Worlds: Planet 9 citizen science project. We identified this object as a red, fast-moving source with a faint $W2$ detection in multi-epoch \textit{AllWISE} and unWISE images. We have characterized this object with Spitzer Space Telescope and \textit{Hubble Space Telescope} follow-up imaging. With mid-infrared detections in \textit{Spitzer}'s \emph{ch1} and \emph{ch2} bands and… 

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