NOAO >   Observing Info >   Approved Programs >   2018A-0292

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Program Information for 2018A-0292


PI: Steven M Silverberg, U. of Oklahoma, steven.m.silverberg@gmail.com
Address: H. L. Dodge Department of Physics and Astronomy, 440 W. Brooks St., Norman, OK 73019 USA

CoI: John Wisniewski, U. of Oklahoma
CoI: Marc J Kuchner, NASA Goddard Space Flight Center
CoI: Joshua Schlieder, NASA Goddard Space Flight Center
CoI: Alissa S Bans, Valparaiso U.

Title: Determining Intrinsic Characteristics of Potential Disk-hosting dM Stars from Disk Detective with ARCoIRIS

Abstract: M dwarfs are critical targets for discovering and characterizing small exoplanets. However, little is known about how these planetary systems form. While study of circumstellar disks traces planet formation around higher-mass stars, there are very few M dwarf disk systems detected relative to the expected number of exoplanet hosts, and those that have been detected raise further questions about disk evolution and the potential for planetary habitability. textbf{We propose to use ARCoIRIS observations to determine accurate spectral types, luminosity classes, and metallicities of $sim$60 M stars with significant infrared excesses that have been newly identified as potential nearby ($mathbf{sim 11-170 pc}$) M dwarf disk hosts by Disk Detective.} These observations will yield spectral types and luminosity classes for these targets, using surface gravity and non-detection of Br $gamma$ emission to establish that targets are not contaminating YSOs. textbf{Our full sample will double the number of known M dwarf disk systems}, enabling us to test theories of M dwarf disk occurrence and detection, planetary system formation and evolution, and the potential for habitability.

Program Type: Standard/Galactic

Scheduled Nights:
Run 1 (2018A):  CT-4m/ARCoIRIS -- 2n on Mar 01 - Mar 02 2018


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2018A-0292

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