NOAO >   Observing Info >   Approved Programs >   2012A-0423

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Proposal Information for 2012A-0423


PI: John Gizis, University of Delaware, gizis@udel.edu
Address: Department of Physics and Astronomy, 217 Sharp Lab, Newark, DE 19716, USA

CoI: Adam Burgasser, University of California, Santa Cruz

Title: L Dwarf Variability: Clouds or Spots?

Abstract: We are using NASA's Kepler Mission to obtain an unprecedented one- year photometric time series on a nearby L1 dwarf. We request Gemini spectra taken simultaneously with Kepler photometry to enable the physical interpretation of the variability. Variations seen in other L dwarfs have been attributed to clouds, flares, and (magnetic) starspots, but the interpretation remains ambiguous due to limited time coverage and the lack of simultaneous spectral data. Spectroscopy can distinguish between magnetic spots and dust clouds.


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NOAO >   Observing Info >   Approved Programs >   2012A-0423

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