Poster Open Access

Giant white-light flares on fully convective stars occur at high latitudes

Ekaterina Ilin; Katja Poppenhaeger; Sarah Jane Schmidt; Silva P. Järvinen; Elisabeth R. Newton; Julián D. Alvarado-Gómez; J. Sebastian Pineda; James R. A. Davenport; Mahmoudreza Oshagh; Ilya Ilyin


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{
  "publisher": "Zenodo", 
  "DOI": "10.5281/zenodo.4558792", 
  "language": "eng", 
  "title": "Giant white-light flares on fully convective stars occur at high latitudes", 
  "issued": {
    "date-parts": [
      [
        2021, 
        2, 
        24
      ]
    ]
  }, 
  "abstract": "<p>In a <strong>systematic analysis of fully convective stars observed with TESS</strong>, we detected four stars that displayed giant <strong>flares that were modulated in brightness by the stars&#39; rapid rotation</strong>. The morphology of the modulation allowed us to directly <strong>localize these flares between </strong><strong>55&deg;</strong><strong> and </strong><strong>81&deg;</strong><strong> latitude on the stellar surface</strong>,&nbsp; far higher than typical solar flare latitudes.&nbsp;</p>\n\n<p>These findings are <strong>a.</strong> evidence that strong magnetic fields tend to emerge close to the stellar rotational poles for fully convective stars, and <strong>b.</strong> suggest that the impact of flares on the habitability of exoplanets around small stars could be weaker than previously thought.</p>", 
  "author": [
    {
      "family": "Ekaterina Ilin"
    }, 
    {
      "family": "Katja Poppenhaeger"
    }, 
    {
      "family": "Sarah Jane Schmidt"
    }, 
    {
      "family": "Silva P. J\u00e4rvinen"
    }, 
    {
      "family": "Elisabeth R. Newton"
    }, 
    {
      "family": "Juli\u00e1n D. Alvarado-G\u00f3mez"
    }, 
    {
      "family": "J. Sebastian Pineda"
    }, 
    {
      "family": "James R. A. Davenport"
    }, 
    {
      "family": "Mahmoudreza Oshagh"
    }, 
    {
      "family": "Ilya Ilyin"
    }
  ], 
  "id": "4558792", 
  "event-place": "virtually anywhere", 
  "type": "graphic", 
  "event": "The 20.5th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun (CS20.5)"
}
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