NOAO >   Observing Info >   Approved Programs >   2010B-0500

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Proposal Information for 2010B-0500


PI: Scott Fleming, University of Florida, scfleming@astro.ufl.edu
Address: Astronomy Department, 211 Bryant Space Science Center, Gainesville, FL 32608, USA

CoI: Elizabeth Lada, University of Florida
CoI: Naibi Marinas, University of Florida
CoI: Jason Ybarra, University of Florida

Title: A Spectroscopic Survey of the ClassII YSO Population in the LkH(alpha)101 Region

Abstract: We propose to use the FLAMINGOS multi-object, near-IR spectrograph on the KPNO 4-m telescope to conduct a spectroscopic survey of previously-identified ClassII (``T Tauri'') YSO's in the LkH(alpha)101 star forming region. LkH(alpha)101 is a Herbig star with an associated population of ~ 150 YSOs. It is a member of the California Nebula, recently determined to be of comparable distance and size to the Orion Nebula, yet with significantly less star formation. We will use pre- existing FLAMINGOS photometry, combined with these spectra, to determine effective temperatures and luminosities for 72 ClassII YSO's. We will search for any age or mass distributions amongst the YSOs using theoretical tracks on the HR diagram. Finally, we will use these spectroscopic observations to constrain the effective temperatures and luminosities of the central sources when performing SED analysis to derive disk properties. The spatial distribution and environmental dependence of T Tauri disk properties in LkH(alpha)101 will then be explored. Additional targets on each multi-object mask will be used to search for substellar objects in the region to explore the low-end of the mass function.


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NOAO >   Observing Info >   Approved Programs >   2010B-0500

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