NOAO >   Observing Info >   Approved Programs >   2017A-0295

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Program Information for 2017A-0295


PI: Vinicius Placco, U. of Notre Dame, vplacco@nd.edu
Address: Physics Department, 225 Nieuwland Science Hall, Notre Dame, Indiana 46556 United States

CoI: Timothy Beers, U. of Notre Dame
CoI: Julio Chaname, Pontificia Universidad Catolica de Chile
CoI: Rafael Santucci, IAGUSP
CoI: Silvia Rossi, IAGUSP

Title: Identifying Very and Extremely Metal-Poor Stars in the Best & Brightest Catalog

Abstract: The detailed properties of very metal-poor stars provide direct information on the history of star formation and chemical evolution of the Galaxy, as well as on processes of astrophysical nucleosynthesis. Using medium-resolution spectroscopy we propose to measure metallicities, [Fe/H], and carbon abundances, [C/Fe], for a sample of $sim$1,000 {it bright} ($12 < V < 13$) very metal-poor star candidates from the Best & Brightest catalog. With estimated [Fe/H] and [C/Fe] in hand, we will identify many hundreds of new carbon-enhanced metal-poor (CEMP) stars. The validated bright {it non}-CEMP stars with [Fe/H] $< - 2.0$ will be targeted for high-resolution spectroscopic snapshot surveys (e.g., with the DuPont/ECHELLE and SOAR/STELES) to dramatically increase the numbers of the rare highly $r$-process-element enhanced stars known, providing the key to understanding the site and nature of the astrophysical $r$-process.

Program Type: Standard/Galactic

Scheduled Nights:
Run 1 (2017A):  KP-4m/KOSMOS -- 7n on Jul 03 - Jul 09 2017


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2017A-0295

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