NOAO >   Observing Info >   Approved Programs >   2014B-0381

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Proposal Information for 2014B-0381


PI: Matthew J. Richter, UC Davis, mjrichter@ucdavis.edu
Address: Physics Department, 1 Shields Ave, Davis, CA 95616, USA

CoI: Curtis DeWitt, UC Davis
CoI: John Lacy, University of Texas at Austin
CoI: Colette Salyk, NOAO

Title: [NeII] in T Tauri Stars with TEXES on Gemini

Abstract: [Ne II] forbidden line emission is commonly seen in Spitzer spectra of young stars. In these objects, the emission may be a sensitive probe of disk \it gas lifetimes and/or provide insight into the processes involved with disk dissipation. Unfortunately, understanding and using [Ne II] emission is impossible at the low spectral resolution of Spitzer IRS. Ground-based follow-up suggests the [Ne II] may be extended and not associated with the disk at R<20 AU. We propose to observe 20 sources the Herbig-Bell Catalog identified as T Tauri stars with TEXES on Gemini-North. Our detection rate and the dynamic information provided by our observations will address the reliability of associating [Ne II] emission with T Tauri disks and the most likely physical conditions that give rise to [Ne II] emission. Together, this will lead to better understanding of this new diagnostic.


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NOAO >   Observing Info >   Approved Programs >   2014B-0381

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