NOAO >   Observing Info >   Approved Programs >   2018A-0255

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Program Information for 2018A-0255


PI: Jacqueline Faherty, American Museum of Natural History, jfaherty@amnh.org
Address: Astrophysics, 79th street and CPW, New York, NY 10039 USA

CoI: Marc Kuchner, NASA Goddard Space Flight Center
CoI: Adam C Schneider, Arizona State U.
CoI: Jonathan Gagne, Carnegie Institution of Washington
CoI: Aaron Meisner, UC Berkeley

Title: Extreme Brown Dwarfs Discovered Through an All Sky Proper Motion Survey

Abstract: Since the discovery of the first brown dwarfs, near-infrared [NIR] color selection has been the primary technique for identifying strong candidates. However, numerous serendipitous discoveries of extreme photometric outliers demonstrating critical physical diversity have demonstrated the limitations of such searches. To curtail the significance of NIR color in selecting candidates, our team has founded a proper motion tool which allows citizen scientists to flip through mid- infrared, WISE images in search of previously missed, high proper motion, nearby brown dwarfs. For this proposal we have identified 19 high priority candidates that fall in extreme positions on reduced proper motion diagrams. We will use this target list to glimpse at a proper motion selected population that likely includes previously missed brown dwarfs as well as [1] unresolved binaries [2] high metallicity sources, [3] low gravity sources, or [4] atmospherically dynamic/variable objects. We propose 2 full nights with ARCoIRIS to target these previously missed brown dwarfs.

Program Type: Standard/Galactic

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


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NOAO >   Observing Info >   Approved Programs >   2018A-0255

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