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Wide, Cool and Ultracool Companions to Nearby Stars from Pan-STARRS1
Niall R. Deacon, Michael C. Liu, Eugene A. Magnier +18
We present the discovery of 61 wide (>5 arcsecond) separation, low-mass (stellar and substellar) companions to stars in the solar neighborhood identified from Pan-STARRS\,1 (PS1) d…
Characterization of the Praesepe Star Cluster by Photometry and Proper Motions with 2MASS, PPMXL, and Pan-STARRS
P. F. Wang, W. P. Chen, C. C. Lin +31
Membership identification is the first step to determine the properties of a star cluster. Low-mass members in particular could be used to trace the dynamical history, such as mass…
A Search for L/T Transition Dwarfs With Pan-STARRS1 and WISE: Discovery of Seven Nearby Objects Including Two Candidate Spectroscopic Variables
William M. J. Best, Michael C. Liu, Eugene A. Magnier +13
We present initial results from a wide-field (30,000 deg^2) search for L/T transition brown dwarfs within 25 pc using the Pan-STARRS1 and WISE surveys. Previous large-area searches…
LHS 2803B: A very wide mid-T dwarf companion to an old M dwarf identified from Pan-STARRS1
Niall R. Deacon, Michael C. Liu, Eugene A. Magnier +12
We report the discovery of a wide (approximately 400 AU projected separation), common proper motion companion to the nearby M dwarf LHS 2803 (PSO J207.0300-13.7422). This object wa…
Four new T dwarfs identified in PanSTARRS 1 commissioning data
Niall R. Deacon, Michael C. Liu, Eugene A. Magnier +14
A complete well-defined sample of ultracool dwarfs is one of the key science programs of the Pan-STARRS 1 optical survey telescope (PS1). Here we combine PS1 commissioning data wit…
A Search for High Proper Motion T Dwarfs with Pan-STARRS1 + 2MASS + WISE
Michael C. Liu, Niall R. Deacon, Eugene A. Magnier +13
We have searched ~8200 sq. degs for high proper motion (~0.5-2.7"/year) T dwarfs by combining first-epoch data from the Pan-STARRS1 (PS1) 3-Pi Survey, the 2MASS All-Sky Point Sourc…