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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    "name": "English"
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  "description": "<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>", 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "creator": [
    {
      "affiliation": "Leibniz Institute for Astrophysics Potsdam, Germany", 
      "@id": "https://orcid.org/0000-0002-6299-7542", 
      "@type": "Person", 
      "name": "Ekaterina Ilin"
    }, 
    {
      "affiliation": "Leibniz Institute for Astrophysics Potsdam, Germany", 
      "@id": "https://orcid.org/0000-0003-1231-2194", 
      "@type": "Person", 
      "name": "Katja Poppenhaeger"
    }, 
    {
      "affiliation": "Leibniz Institute for Astrophysics Potsdam, Germany", 
      "@id": "https://orcid.org/0000-0002-7224-7702", 
      "@type": "Person", 
      "name": "Sarah Jane Schmidt"
    }, 
    {
      "affiliation": "Leibniz Institute for Astrophysics Potsdam, Germany", 
      "@id": "https://orcid.org/0000-0003-3572-9611", 
      "@type": "Person", 
      "name": "Silva P. J\u00e4rvinen"
    }, 
    {
      "affiliation": "Dartmouth College", 
      "@id": "https://orcid.org/0000-0003-4150-841X", 
      "@type": "Person", 
      "name": "Elisabeth R. Newton"
    }, 
    {
      "affiliation": "Leibniz Institute for Astrophysics Potsdam, Germany", 
      "@id": "https://orcid.org/0000-0001-5052-3473", 
      "@type": "Person", 
      "name": "Juli\u00e1n D. Alvarado-G\u00f3mez"
    }, 
    {
      "affiliation": "University of Colorado Boulder", 
      "@id": "https://orcid.org/0000-0002-8903-0550", 
      "@type": "Person", 
      "name": "J. Sebastian Pineda"
    }, 
    {
      "affiliation": "University of Washington", 
      "@id": "https://orcid.org/0000-0002-0637-835X", 
      "@type": "Person", 
      "name": "James R. A. Davenport"
    }, 
    {
      "affiliation": "Inistituto de Astrof\u00edsica de Canarias", 
      "@id": "https://orcid.org/0000-0002-0715-8789", 
      "@type": "Person", 
      "name": "Mahmoudreza Oshagh"
    }, 
    {
      "affiliation": "Leibniz Institute for Astrophysics Potsdam, Germany", 
      "@id": "https://orcid.org/0000-0002-0551-046X", 
      "@type": "Person", 
      "name": "Ilya Ilyin"
    }
  ], 
  "url": "https://zenodo.org/record/4558792", 
  "datePublished": "2021-02-24", 
  "keywords": [
    "Very low mass stars", 
    "stellar activity", 
    "flares", 
    "stellar rotation", 
    "stellar magnetic fields", 
    "low-mass stars"
  ], 
  "@type": "CreativeWork", 
  "contributor": [
    {
      "@type": "Person", 
      "name": "Wolk, Scott"
    }
  ], 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.5281/zenodo.4558792", 
  "@id": "https://doi.org/10.5281/zenodo.4558792", 
  "workFeatured": {
    "url": "http://coolstars20.cfa.harvard.edu/cs20half", 
    "alternateName": "CS20.5", 
    "location": "virtually anywhere", 
    "@type": "Event", 
    "name": "The 20.5th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun"
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  "name": "Giant white-light flares on fully convective stars occur at high latitudes"
}
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