The Enigmatic Brown Dwarf WISEA J153429.75-104303.3 (a.k.a. “The Accident”)

@article{Kirkpatrick2021TheEB,
  title={The Enigmatic Brown Dwarf WISEA J153429.75-104303.3 (a.k.a. “The Accident”)},
  author={J. Davy Kirkpatrick and Federico Marocco and Dan Caselden and Aaron M. Meisner and Jacqueline K. Faherty and Adam C. Schneider and Marc J. Kuchner and Sarah L. Casewell and Christopher Ryan Gelino and Michael C. Cushing and Peter R. Eisenhardt and E. L. Wright and Steven D. Schurr},
  journal={The Astrophysical Journal Letters},
  year={2021},
  volume={915}
}
Continued follow-up of WISEA J153429.75−104303.3, announced in Meisner et al., has proven it to have an unusual set of properties. New imaging data from Keck/MOSFIRE and HST/WFC3 shows that this object is one of the few faint proper motion sources known with J − ch2 >8 mag, indicating a very cold temperature consistent with the latest known Y dwarfs. Despite this, it has W1−W2 and ch1−ch2 colors ∼1.6 mag bluer than a typical Y dwarf. A new trigonometric parallax measurement from a combination… 
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