{
  "id": "1805.09911",
  "version": "v1",
  "published": "2018-05-24T21:41:47.000Z",
  "updated": "2018-05-24T21:41:47.000Z",
  "title": "Star Formation Rate Distribution in the Galaxy NGC 1232",
  "authors": [
    "Alexandre Araújo de Souza",
    "Lucimara P. Martins",
    "Alberto Rodríguez-Ardila",
    "Luciano Fraga"
  ],
  "comment": "13 pages + table (27 pages), 8 figures",
  "journal": "2018, AJ, 155, 234",
  "doi": "10.3847/1538-3881/aab6b2",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "NGC 1232 is a face-on spiral galaxy and a great laboratory for the study of star-formation due to its proximity. We obtained high spatial resolution H{\\alpha} images of this galaxy, with adaptive optics, using the SAM instrument at the SOAR telescope, and used these images to study its H ii regions. These observations allowed us to produce the most complete H ii region catalog for it to date, with a total of 976 sources. This doubles the number of H ii regions previously found for this object. We used these data to construct the H ii luminosity function, and obtained a power-law index lower than the typical values found for Sc galaxies. This shallower slope is related to the presence of a significant number of high-luminosity H ii regions (logL>39 dex). We also constructed the size distribution function, verifying that, as for most galaxies, NGC 1232 follows an exponential law. We also used the H{\\alpha} luminosity to calculate the star formation rate. An extremely interesting fact about this galaxy is that X-ray diffuse observations suggest that NGC 1232 recently suffered a collision with a dwarf galaxy. We found an absence of star formation around the region where the X-ray emission is more intense, which we interpret as a star formation quenching due to the collision. Along with that, we found an excess of star-forming regions in the northeast part of the galaxy, where the X-ray emission is less intense.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-05-24T21:41:47.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "star formation rate distribution",
      "galaxy ngc",
      "x-ray emission",
      "face-on spiral galaxy",
      "high spatial resolution"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 13,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}