{
  "id": "2204.00831",
  "version": "v1",
  "published": "2022-04-02T10:44:47.000Z",
  "updated": "2022-04-02T10:44:47.000Z",
  "title": "Estimation of the Star Formation Rate of Galaxies with Radio Continuum Obtained with Murchison Widefield Array",
  "authors": [
    "Tsutomu T. Takeuchi",
    "Shuntaro A. Yoshida",
    "Luca Cortese",
    "O. Ivy Wong",
    "Barbara Catinella",
    "Suchetha Cooray"
  ],
  "comment": "13 pages, 6 figures, 2 tables, submitted",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "We investigate the correlation between the integrated low-frequency and infrared (IR) emissions of star-forming galaxies extracted from the {\\sl Herschel} Reference Survey. By taking advantage of the GaLactic Extragalactic All-sky MWA (GLEAM) survey operated by the Murchison Widefield Array (MWA) we examine how this correlation varies at a function of frequency across the 20 GLEAM narrow bands at $72\\mbox{--}231\\; [\\mbox{MHz}]$. These examinations are important for ensuring the reliability of the radio luminosity as a SFR indicator. In this study, we focus on 18 star-forming galaxies whose radio emission is detected by the GLEAM survey. These galaxies show that a single power-law is sufficient to characterise the far-infrared-to-radio correlation across the GLEAM frequency bands and up to $1.5\\; [\\mbox{GHz}]$. Thus, the radio continuum in this wavelength range can serve as a good dust extinction-free SFR estimator. This is particularly important for future investigation of the cosmic SFR independently from other estimators, since the radio continuum can be detected from $z=0$ to high redshifts ($z \\sim 5\\mbox{--}10$) in a coherent manner.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-04-02T10:44:47.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "murchison widefield array",
      "radio continuum",
      "star formation rate",
      "estimation",
      "dust extinction-free sfr estimator"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 13,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}