{
  "id": "1902.02356",
  "version": "v1",
  "published": "2019-02-06T19:00:03.000Z",
  "updated": "2019-02-06T19:00:03.000Z",
  "title": "Studying galaxy evolution through cosmic time via the μJy radio population: early results from eMERGE",
  "authors": [
    "A. P. Thomson",
    "T. W. B. Muxlow",
    "Ian Smail",
    "I. M McHardy",
    "R. J. Beswick",
    "J. F. Radcliffe",
    "N. Wrigley"
  ],
  "comment": "6 Pages, 3 figures, published in proceedings from the 14th European VLBI Network Symposium and Users Meeting",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "The $e$MERLIN Galaxy Evolution Survey ($e$MERGE) is an ambitious, multi-tiered extragalactic radio continuum survey being carried out with $e$MERLIN and the VLA at 1.4GHz and 6GHz. Exploiting the unique combination of high sensitivity and high angular resolution provided by radio interferometry, these observations will provide a powerful, obscuration-independent tool for tracing intense star-formation and AGN activity in galaxies out to $z\\sim5$. In our first data release (DR1) we present $e$MERGE Tier 1, a 15-arcmin pointing centred on the GOODS-N field, imaged at 1.4GHz with the VLA and $e$MERLIN at $\\sim 0.28''$ resolution down to an rms sensitivity of $\\sim 1.2\\,\\mu$Jy beam$^{-1}$. This unique radio survey -- unrivaled at 1.4GHz in its combination of depth, areal coverage and angular resolution in the pre-SKA era -- allows us to localise and separate extended star-forming regions, nuclear starbursts and compact AGN core/jet systems in galaxies over the past two-thirds of cosmic history, a crucial step in tracing the apparently simultaneous growths of the stellar populations and central black holes in massive galaxies. In these proceedings we highlight some early science results from $e$MERGE DR1, including some examples of the sub-arcsecond morphologies and cold dust properties of 1.4GHz-selected galaxies. $e$MERGE Tier 1 will eventually reach sub-$\\mu$Jy beam$^{-1}$ sensitivity at $0.28''$ resolution over a 30-arcmin field, providing crucial benchmarks for deep extragalactic surveys which will be undertaken with SKA in the next decade.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-02-06T19:00:03.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "studying galaxy evolution",
      "extragalactic radio continuum survey",
      "cosmic time",
      "radio population",
      "early results"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}