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Lamman, Claire; Berta-Thompson, Zachory K.; Baranec, Christoph; Schonhut-Stasik, Jessica; Salama, Maïssa; Law, Nicholas M.; Ziegler, Carl; Jensen-Clem, Rebecca; Duev, Dmitry A.; Riddle, Reed; Kulkarni, Shrinivas R.; Winters, Jennifer G.; Irwin, Jonathan M., E-mail: claire.lamman@colorado.edu2020
AbstractAbstract
[en] We analyze observations from Robo-AO’s field M dwarf survey taken on the 2.1 m Kitt Peak telescope and perform a multiplicity comparison with Gaia DR2. Through its laser-guided, automated system, the Robo-AO instrument has yielded the largest adaptive optics M dwarf multiplicity survey to date. After developing an interface to visually identify and locate stellar companions, we selected 11 low-significance Robo-AO detections for follow-up on the Keck II telescope using NIRC2. In the Robo-AO survey we find 553 candidate companions within 4″ around 534 stars out of 5566 unique targets, most of which are new discoveries. Using a position cross-match with DR2 on all targets, we assess the binary recoverability of Gaia DR2 and compare the properties of multiples resolved by both Robo-AO and Gaia. The catalog of nearby M dwarf systems and their basic properties presented here can assist other surveys which observe these stars, such as the NASA TESS mission.
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Source
Available from http://dx.doi.org/10.3847/1538-3881/ab6ef1; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
Journal
Astronomical Journal (New York, N.Y. Online); ISSN 1538-3881;
; v. 159(4); [13 p.]

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