Collaborative Research: 'The Physical Properties of Lyman Alpha Emitters at 2<z<3'

Project: Research project

Project Details


The awardees have performed a deep ground-based narrow-band survey for Lyman-alpha emitters (LAEs, possible progenitors of ordinary galaxies like the Milky Way) that has produced a sample of 259 galaxies, one of the largest sample of LAEs yet acquired. The funded work will extend the survey by 1) exploring the evolution of LAEs by studying a complementary sample at lower redshift; 2) measuring the 3-D distribution of the LAEs; 3) probing the stellar winds, dynamics, and HI column densities of LAEs via extensive high-resolution spectroscopy with the Robert Stobie Spectrograph on the South African Large Telescope (SALT) and the LDSS3 spectrograph on Magellan, and 4) performing near-infrared spectroscopy with FLAMINGOS-2 on Gemini-South to measure systemic redshifts and LAE metallicities. The research promises significant progress towards a complete picture of the birth and early growth of the precursors of present-day L* galaxies.

Broader impacts of this work include research training for undergraduates, release of data to the astronomical community, and participation in the 'Astrofest' activity of public lectures at Penn State.

Effective start/end date7/15/086/30/12


  • National Science Foundation: $256,380.00


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