NOAO >   Observing Info >   Approved Programs >   2010B-0292

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Proposal Information for 2010B-0292


PI: William Herbst, Wesleyan University, wherbst@wesleyan.edu
Address: Department of Astronomy, Middletown, CT, 06459-0123, USA

CoI: Catrina Hamilton, Dickinson College
CoI: Chris Johns-Krull, Rice University
CoI: Josh Winn, MIT
CoI: Reinhard Mundt, MPIA-Heidelberg
CoI: Sandy Leggett, Gemini

Title: Near Infrared Spectroscopy of the Unique T Tauri Binary System KH 15D

Abstract: We propose to obtain medium resolution Gemini/NIRI J-band spectra of the unique T Tauri binary system KH 15D at two orbital phases to search for and characterize a putative third body. The data will also permit us to assess the spectral differences between stars A and B and to extend the search for a reflectance spectrum signature of silicate minerals and/or ice. KH 15D is the only known example of a system at the key phase of planet formation where a settled particulate layer of chondrule (mm) sized objects has clearly formed, but planetesimal formation has not yet occurred. As such, it deserves intensive study to ascertain its structure in detail and the possibility that there is third light in the system requires the close scrutiny that is only possible with an 8-10m class telescope.


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NOAO >   Observing Info >   Approved Programs >   2010B-0292

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