{
  "id": "2007.08610",
  "version": "v1",
  "published": "2020-07-16T20:19:28.000Z",
  "updated": "2020-07-16T20:19:28.000Z",
  "title": "Self-consistent Color-Mass-to-Light-Ratio relations for Low Surface Brightness Galaxies",
  "authors": [
    "Wei Du",
    "Stacy S. McGaugh"
  ],
  "comment": "19 pages,11 figures, 7 tables, accepted for publication in The Astronomical Journal",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "The color - stellar mass-to-light ratio relation (CMLR) is a widely accepted tool to estimate the stellar mass (M*) of a galaxy. However, an individual CMLR tends to give distinct M* for a same galaxy when it is applied in different bands. Examining five representative CMLRs from literature, we find that the difference in M* predicted in different bands from optical to near-infrared by a CMLR is 0.1-0.3 dex. Therefore, based on a sample of low surface brightness galaxies (LSBG) that covers a wide range of color and luminosity, we re-calibrated each original CMLR in r, i, z, J, H, and K bands to give internally self-consistent M* for a same galaxy. The g-r is the primary color indicator in the re-calibrated relations which show little dependenceon red (r - z) or near-infrared (J - K) colors.Additionally, the external discrepancies in the originally predicted stellar mass-to-light ratio (M*/L) by the five independent CMLRs have been greatly reduced after re-calibration, especially in near-infrared bands, implying that the near-infrared luminosities are more robust to predict M*/L. For each CMLR, the re-calibrated relations provided in this work could produce internally self-consistent M* from divergent photometric bands, and are extensions of the re-calibrations from Johnson-Cousin filter system by the pioneering work of McGaugh & Schombert (2014) to SDSS filter system.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2020-07-16T20:19:28.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "low surface brightness galaxies",
      "self-consistent color-mass-to-light-ratio relations",
      "predicted stellar mass-to-light ratio",
      "filter system",
      "stellar mass-to-light ratio relation"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 19,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}