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Observed Variability at 1um and 4um in the Y0 Brown Dwarf WISEP J173835.52+273258.9
S. K. Leggett, Michael C. Cushing, Kevin K. Hardegree-Ullman +10
We have monitored photometrically the Y0 brown dwarf WISEP J173835.52+273258.9 (W1738) at both near- and mid-infrared wavelengths. This ~1 Gyr-old 400K dwarf is at a distance of 8p…
The AllWISE Motion Survey, Part 2
J. Davy Kirkpatrick, Kendra Kellogg, Adam C. Schneider +17
We use the AllWISE Data Release to continue our search for WISE-detected motions. In this paper, we publish another 27,846 motion objects, bringing the total number to 48,000 when…
The First Detection of Photometric Variability in a Y Dwarf: WISE J140518.39+553421.3
Michael C. Cushing, Kevin K. Hardegree-Ullman, Jesica L. Trucks +8
We present the first detection of photometric variability of a spectroscopically-confirmed Y dwarf. The Infrared Array Camera on board the Spitzer Space Telescope was used to obtai…
The Chemical Compositions of Very Metal-Poor Stars HD 122563 and HD 140283; A View From the Infrared
Melike Afşar, Christopher Sneden, Anna Frebel +11
From high resolution (R = 45,000), high signal-to-noise (S/N > 400) spectra gathered with the Immersion Grating Infrared Spectrograph (IGRINS) in the H and K photometric bands, we…
IGRINS Near-IR High-Resolution Spectroscopy of Multiple Jets around LkH 234
Heeyoung Oh, Tae-Soo Pyo, In-Soo Yuk +18
We present the results of high-resolution near-IR spectroscopy toward the multiple outflows around the Herbig Be star Lk{\Ha} 234 using the Immersion Grating Infrared Spectrograph…