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IRAS 00450+7401 and the mid-infrared fade/burst cycle of R Coronae Borealis-type stars
William A. Burris, Carl Melis, Allen W. Shafter +3
We present optical and infrared imaging and spectroscopy of the R Coronae Borealis-type (R Cor Bor) star IRAS 00450+7401. Optical spectra further confirm its classification as a co…
An Improved Near-Infrared Spectrum of the Archetype Y Dwarf WISEP J182831.08+265037.8
Michael C. Cushing, Adam C. Schneider, J. Davy Kirkpatrick +8
We present a Hubble Space Telescope/Wide-Field Camera 3 near infrared spectrum of the archetype Y dwarf WISEP 182831.08+265037.8. The spectrum covers the 0.9-1.7 um wavelength rang…
The Enigmatic Brown Dwarf WISEA J153429.75-104303.3 (aka "The Accident")
J. Davy Kirkpatrick, Federico Marocco, Dan Caselden +10
Continued follow-up of WISEA J153429.75-104303.3, announced in Meisner et al (2020), has proven it to have an unusual set of properties. New imaging data from Keck/MOSFIRE and HST/…
Improved infrared photometry and a preliminary parallax measurement for the extremely cold brown dwarf CWISEP J144606.62231717.8
Federico Marocco, J. Davy Kirkpatrick, Aaron M. Meisner +6
We present follow-up observations at 3.6m (ch1) and 4.5m (ch2) of CWISEP J144606.62231717.8, one of the coldest known brown dwarfs in the solar neighborhood. Thi…
The Coldest Brown Dwarf (Or Free Floating Planet)?: The Y Dwarf WISE 1828+2650
Charles A. Beichman, Christopher R. Gelino, J. Davy Kirkpatrick +4
We have monitored the position of the cool Y dwarf WISEPA J182831.08+265037.8 using a combination of ground- and space-based telescopes and have determined its distance to be 11.2$…
Spitzer Photometry of WISE-Selected Brown Dwarf and Hyper-Luminous Infrared Galaxy Candidates
Roger L. Griffith, J. Davy Kirkpatrick, Peter R. M. Eisenhardt +23
We present Spitzer 3.6 and 4.5 m photometry and positions for a sample of 1510 brown dwarf candidates identified by the WISE all-sky survey. Of these, 166 have been spectroscopi…