NOAO >   Observing Info >   Approved Programs >   2016B-0626

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Program Information for 2016B-0626


PI: Ben Rosenwasser, U. of Wisconsin, Madison, rosenwas@astro.wisc.edu
Address: Astronomy Department, 475 N Charter St, Madison, WI 53706 USA

CoI: Amy Barger, U. of Wisconsin, Madison
CoI: Isak Wold, U. of Texas, Austin
CoI: Lennox Cowie, University of Cambridge
CoI: Antoinette Songaila, University of Cambridge

Title: Redshifts and Equivalent Width Measurements for Strong Emission Line Galaxies at z < 1

Abstract: We are performing a wide-field (120 deg$^2$) emission line survey that will identify the population of ultra-strong emission line galaxies (USELs) from z = 0-1. We will search for these galaxies in continuum textit{g'}, textit{i'}, textit{z'}, textit{y'} images from the Hyper Suprime-Cam (HSC) and the 8140$textrm{AA}$ and 9210$textrm{AA}$ narrowband filters on the Suprime-Cam, both on Subaru. We will use WIYN/Hydra to acquire spectroscopic redshifts and equivalent widths of strong emission lines for these galaxies to select the most qualified low-metallicity galaxy candidates. We will then obtain deep 10 m spectroscopy using Keck/DEIMOS. These measurements will allow us to determine if their is a metallicity floor in late forming galaxies (z $<$ 1) that accreted from an previously enriched intergalactic medium. We have 30 nights of Subaru observations over the next 3 years and U- and J- band coverage from the Canada-France-Hawaii Telescope (CFHT) guaranteed. We are proposing for 5 nights with WIYN/Hydra to continue the spectral prescreening for metal-poor candidates. These observations will be a part of the thesis work for PI Rosenwasser.

Program Type: WTAC

Scheduled Nights:
Run 1 (2016B):  WIYN/HYDR -- 5n on Jan 25 - Jan 29 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 >   2016B-0626

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