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The Companions to B and A Stars Snapshot (C-BASS) Survey: I. Discovery of a Young Brown Dwarf Companion to HIP 17453
Marah Brinjikji, Adam J. Smith, Jennifer Patience +26
We report the detection of a new brown dwarf companion to HIP 17453 A, a chemically peculiar A0V star located at a distance of 81 pc. HIP 17453 A was observed with high-resolution…
Astrometry and Photometry for 1000 L, T, and Y Dwarfs from the UKIRT Hemisphere Survey
Adam C. Schneider, Jeffrey A. Munn, Frederick J. Vrba +5
We present positions, proper motions, and near-infrared photometry for 966 known objects with spectral types later than M observed as part of the the UKIRT Hemisphere Survey (UHS).…
A novel survey for young substellar objects with the W-band filter VI: Spectroscopic census of sub-stellar members and the IMF of Orionis cluster
Belinda Damian, Jessy Jose, Beth Biller +11
Low-mass stars and sub-stellar objects are essential in tracing the initial mass function (IMF). We study the nearby young Orionis cluster (d408 pc; age1.8 Myr) usi…
On The Unusual Variability of 2MASS J06195260-2903592: A Long-Lived Disk around a Young Ultracool Dwarf
Michael C. Liu, Eugene A. Magnier, Eric Gaidos +10
We present the characterization of the low-gravity M6 dwarf 2MASS J0619-2903 previously identified as an unusual field object based on its strong IR excess and variable near-IR spe…
A Novel Survey for Young Substellar Objects with the W band Filter.V. IC 348 and Barnard 5 in the Perseus Cloud
Bhavana Lalchand, Wen-Ping Chen, Beth A. Biller +10
We report the discovery of substellar objects in the young star cluster IC 348 and the neighboring Barnard 5 dark cloud, both at the eastern end of the Perseus star-forming complex…
COol Companions ON Ultrawide orbiTS (COCONUTS). III. A Very Red L6 Benchmark Brown Dwarf around a Young M5 Dwarf
Zhoujian Zhang, Michael C. Liu, Caroline V. Morley +5
We present the third discovery from the COol Companions ON Ultrawide orbiTS (COCONUTS) program, the COCONUTS-3 system, composed of a young M5 primary star UCAC4 374-046899 and a ve…