NOAO >   Observing Info >   Approved Programs >   2012B-0275

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Proposal Information for 2012B-0275


PI: Christopher R. Gelino, California Institute of Technology, cgelino@ipac.caltech.edu
Address: Infrared Processing and Analysis Center, 770 S. Wilson Ave., Pasadena, CA 91125, USA

CoI: Davy Kirkpatrick, IPAC/Caltech
CoI: Michael Cushing, University of Toledo
CoI: Roger Griffith, IPAC/Caltech

Title: Photometric Follow-up of WISE Brown Dwarf Candidates

Abstract: Brown dwarfs (BDs) provide a natural link between the physics of stars and gas giant planets. The temperature regime between Jupiter (\teff~128 K) and BDs is being populated with spectroscopically confirmed BDs as cold or colder than 300K. Detailed studies of these cool BDs will allow us to measure the low-mass end of the mass function and extend our studies of low-temperature, high-pressure atmospheric physics and chemistry well into the exoplanet regime. One of the primary science goals of the Wide-field Infrared Survey Explorer (WISE), a NASA MIDEX mission that surveyed the entire sky at 4 mid-infrared wavelengths, is to identify such cool BDs. We propose J and H band observations of 28 candidate BDs found in the WISE survey data. The proposed observations will allow us distinguish BDs from our main contaminants, dust-obscured galaxies and asymptotic giant branch stars. They will also determine which of our spectroscopic instruments is best suited to obtain the spectra that will be used to classify the BDs and provide greater insight into the nature of these cool objects.


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 >   2012B-0275

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