Robo-AO M-dwarf Multiplicity Survey: Catalog

Journal Article · Wed Apr 01 00:00:00 EDT 2020 · The Astronomical Journal (Online)

DOI:https://doi.org/10.3847/1538-3881/AB6EF1· OSTI ID:23013149

Lamman, Claire; Berta-Thompson, Zachory K. ^[1]; Baranec, Christoph; Schonhut-Stasik, Jessica; Salama, Maïssa ^[2]; Law, Nicholas M. ^[3]; Ziegler, Carl ^[4]; Jensen-Clem, Rebecca ^[5]; Duev, Dmitry A.; Riddle, Reed; Kulkarni, Shrinivas R. ^[6]; Winters, Jennifer G.

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1. Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, CO 80309 (United States)
2. Institute for Astronomy, University of Hawai‘i at Mānoa, Hilo, HI 96720-2700 (United States)
3. Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3255 (United States)
4. Dunlap Institute for Astronomy and Astrophysics, University of Toronto, Ontario M5S 3H4 (Canada)
5. Astronomy Department, University of California, Berkeley, CA 94720 (United States)
6. Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125 (United States)

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.

• OSTI ID: 23013149
• Journal Information: The Astronomical Journal (Online), Journal Name: The Astronomical Journal (Online) Journal Issue: 4 Vol. 159; ISSN 1538-3881
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
CATALOGS
COMPARATIVE EVALUATIONS
DWARF STARS
GEOPHYSICAL SURVEYS
MULTIPLICITY
TELESCOPES