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  • 标题:Robo-AO M-dwarf Multiplicity Survey: Catalog*
  • 本地全文:下载
  • 作者:Claire Lamman ; Christoph Baranec ; Zachory K.Berta-Thompson
  • 期刊名称:The Astronomical journal
  • 印刷版ISSN:0004-6256
  • 电子版ISSN:1538-3881
  • 出版年度:2020
  • 卷号:159
  • 期号:4
  • 页码:1882-1894
  • DOI:10.3847/1538-3881/ab6ef1
  • 语种:English
  • 出版社:American Institute of Physics
  • 摘要: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.
  • 关键词:M dwarf stars;Binary stars;Catalogs;Multiple stars;Close binary stars;Trinary stars;Visual binary stars
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