NOAO >   Observing Info >   Approved Programs >   2011A-0131

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Proposal Information for 2011A-0131


PI: Kevin Luhman, Penn State University, kluhman@astro.psu.edu
Address: Astronomy Department, 525 Davey Lab, University Park, PA 16802, USA

CoI: John Bochanski, Penn State University

Title: Searching for the Bottom of the Initial Mass Function

Abstract: The measurement of the minimum mass of the IMF would provide a fundamental test of theories of star and planet formation. To provide better constraints on the minimum of the IMF, we are using deep multi- epoch images from the \it Hubble Space Telescope to perform a proper motion search for low-mass brown dwarfs in the Chamaeleon I star-forming region (3 Myr, 165 pc). In these data, we have identified promising candidates that should have masses of ~2-5 M_\rm Jup if they are members of Chamaeleon I, which would make them some of the least massive known brown dwarfs. We propose to use FIRE at Magellan to obtain near-infrared spectra of these candidates to determine whether they are young brown dwarfs.


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NOAO >   Observing Info >   Approved Programs >   2011A-0131

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