New Red Jewels in Coma Berenices

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dc.contributor.authorTerrien, Ryan C.en_US
dc.contributor.authorMahadevan, Suvrathen_US
dc.contributor.authorDeshpande, Rohiten_US
dc.contributor.authorBender, Chad F.en_US
dc.contributor.authorCargile, Phillip A.en_US
dc.contributor.authorHearty, Frederick R.en_US
dc.contributor.authorCottaar, Michielen_US
dc.contributor.authorJackson, Kelly M.en_US
dc.date.accessioned2014-09-19T17:01:09Z
dc.date.available2014-09-19T17:01:09Z
dc.date.created2014-01-28en_US
dc.date.issued2014-01-28en_US
dc.description.abstractWe have used Sloan Digital Sky Survey-III (SDSS-III) Apache Point Observatory Galactic Evolution Experiment (APOGEE) radial velocity observations in the near-infrared H-band to explore the membership of the nearby (86.7 ± 0.9 pc) open cluster Coma Berenices (Melotte 111), concentrating on the poorly populated low-mass end of the main sequence. Using SDSS-III APOGEE radial velocity measurements, we confirm the membership of eight K/M dwarf members, providing the first confirmed low-mass members of the Coma Berenices cluster. Using R similar to 2000 spectra from IRTF-SpeX, we confirm the independently luminosity classes of these targets, and find their metallicities to be consistent with the known solar mean metallicity of Coma Berenices and of M dwarfs in the solar neighborhood. In addition, the APOGEE spectra have enabled measurement of v sin i for each target and detection for the first time of the low-mass secondary components of the known binary systems Melotte 111 102 and Melotte 111 120, as well as identification of the previously unknown binary system 2MASS J12214070+2707510. Finally, we use Kilodegree Extremely Little Telescope photometry to measure photometric variability and rotation periods for a subset of the Coma Berenices members.en_US
dc.description.sponsorshipUS National Science Foundation (AST 1006676, AST 1126413, and AST 1310885)en_US
dc.identifier.bibliographicCitationTerrien, Ryan C., Suvrath Mahadevan, Rohit Deshpande, Chad F. Bender, et al. 2014. "New red jewels in Coma Berenices." Astrophysical Journal 782(61): 1-12.en_US
dc.identifier.issn0004-637Xen_US
dc.identifier.issue2en_US
dc.identifier.startpage61en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/4027
dc.identifier.volume782en_US
dc.language.isoenen_US
dc.publisherIOP Publishing Ltden_US
dc.relation.urihttp://dx.doi.org/10.1088/0004-637X/782/2/61en_US
dc.rights©2014 The American Astronomical Societyen_US
dc.sourceAstrophysical Journal
dc.subjectComa Berenices (Callimachus)en_US
dc.subjectApache Point Observatory Galactic Evolution Experiment (APOGEE)en_US
dc.subjectStars--Clustersen_US
dc.subjectDouble starsen_US
dc.subjectSloan Digital Sky Survey-III (SDSS-III)en_US
dc.titleNew Red Jewels in Coma Berenicesen_US
dc.type.genrearticleen_US

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