English

A High-Resolution Radio Continuum Study Of The Dwarf Irregular Galaxy IC 10

Astrophysics of Galaxies 2017-01-25 v1

Abstract

We present high-resolution e-MERLIN radio continuum maps of the Dwarf Irregular galaxy IC10 at 1.5GHz and 5GHz. We detect 11 compact sources at 1.5GHz, 5 of which have complementary detections at 5GHz. We classify 3 extended sources as compact H{\sc ii} regions within IC10, 5 sources as contaminating background galaxies and identify 3 sources which require additional observations to classify. We do not expect that any of these 3 sources are Supernova Remnants as they will likely be resolved out at the assumed distance of IC10 (0.7Mpc). We correct integrated flux densities of IC10 from the literature for contamination by unrelated background sources and obtain updated flux density measurements of 354±11354\pm11\,mJy at 1.5GHz and 199±9199\pm9\,mJy at 4.85GHz. The background contamination does not contribute significantly to the overall radio emission from IC10, so previous analysis concerning its integrated radio properties remain valid.

Keywords

Cite

@article{arxiv.1701.06571,
  title  = {A High-Resolution Radio Continuum Study Of The Dwarf Irregular Galaxy IC 10},
  author = {J. Westcott and E. Brinks and R. J. Beswick and V. Heesen and M. K. Argo and R. D. Baldi and D. M. Fenech and I. M. McHardy and D. J. B. Smith and D. R. A. Williams},
  journal= {arXiv preprint arXiv:1701.06571},
  year   = {2017}
}

Comments

15 pages, 7 Figures, 5 Tables, Accepted for publication in MNRAS