English

A Radio Perspective on Star-Formation in Distant Galaxies

Astrophysics 2009-10-31 v1

Abstract

Determination of the epoch dependent star-formation rate of field galaxies is one of the principal goals of modern observational cosmology. Deep radio surveys, sensitive to starbursts out to zz \sim 1-2, may hold the key to understanding the evolution of the starburst phenonemon unhindered by the effects of dust. Using deep, high resolution radio observations of the Hubble Deep Field, we show that the μ\muJy radio emission from field galaxies at z0.41z\sim 0.4-1 is primarily starburst in origin. In addition, we have discovered a population of optically faint, possibly obscured systems that are candidate high-zz protogalaxies. At least one of these radio sources is identified with a sub-mm detection.

Keywords

Cite

@article{arxiv.astro-ph/9811120,
  title  = {A Radio Perspective on Star-Formation in Distant Galaxies},
  author = {Eric A. Richards},
  journal= {arXiv preprint arXiv:astro-ph/9811120},
  year   = {2009}
}

Comments

4 pages, 3 figs., paper presented at Maryland October Astrophysics Conference, 'Before the Dark Ages: When the Galaxies were Young'