NOAO >   Observing Info >   Approved Programs >   2019A-0382

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Program Information for 2019A-0382


PI: Logan Jones, U. of Wisconsin, Madison, ljones@astro.wisc.edu
Address: Astronomy Department, 475 N. Charter St., Madison, WI 53706

CoI: Amy Barger, U. of Wisconsin, Madison
CoI: Lennox Cowie, U. Hawaii - Institute for Astronomy
CoI: Ben Rosenwasser, U. of Wisconsin, Madison
CoI: Anthony Taylor, U. of Wisconsin, Madison
CoI: Ariana Blair, U. of Wisconsin, Madison

Title: Redshift Survey for Strong Emission Line Galaxies

Abstract: We propose to observe ultra-strong emission line galaxy candidates at intermediate redshift ($z sim$ 1.0). We will perform a narrowband (NB) selection using deep broadband $i'$, $z'$, and $y'$ ($sim$50 deg$^{2}$ coverage) and NB814 AA~ and NB921 AA~ ($sim$30 deg$^{2}$ coverage) imaging of the North Ecliptic Pole (NEP) from Suprime-Cam and Hyper Suprime-Cam on Subaru. WIYN/Hydra's field of view is well matched to the surface density of such NB-selected sources ($sim$60 deg$^{- 2}$), allowing us to obtain redshifts and measure strong emission line properties for a large sample of candidate low-metallicity galaxies. The most promising of these can then be followed up with Keck/DEIMOS to estimate metallicities directly from the weak [OIII]$lambda$4363 line. Expanding the number of intermediate-redshift galaxies with direct metallicity measurements by a factor of a few will help calibrate strong- line metallicity diagnostics in this redshift range, thereby extending metallicity studies out to $z sim 1$ or beyond. We request 4 dark nights in June or July to continue our program, from which we expect to obtain redshifts for up to $sim$500 more strong emission line galaxies.

Program Type: WTAC

Scheduled Nights:
Run 1 (2019A):  WIYN/HYDR -- 4n on Jun 02 - Jun 05 2019


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 >   2019A-0382

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