Poster Open Access

The Curious Case of Betelgeuse

Granzer, Thomas; Weber, Michael; Strassmeier, Klaus G.; Dupree, Andrea


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{
  "description": "<p>Since more than a decade, the AIP is monitoring <span class=\"math-tex\">\\(\\alpha\\)</span> Ori with its robotic spectroscopic facility STELLA/SES in Teide observatory, Tenerife along with its automated photoelectric telescope T7 in Fairborn observatory, Az. Additionally, we got access with exclusive two-band photometric data on Betelgeuse from the BRITE satellite consortium, covering the last seven seasons. In late 2019, Betelgeuse showed a rapid brightness decline, reaching an all-time low in Feb. 2020, followed by a quick re-brightening. This poster&nbsp; shows radial velocity data together with the photometry. The radial velocity follows the photometry in general, but sometimes shows a time-shift, which was particularly visible in the grand dimming event. Interesting is the time-frequency analysis of the different data set: All three show similar features at split-periods around the known P=420d.</p>", 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "creator": [
    {
      "affiliation": "Leibniz Institut fuer Astrophysik Potsdam", 
      "@type": "Person", 
      "name": "Granzer, Thomas"
    }, 
    {
      "affiliation": "Leibniz Institut fuer Astrophysik Potsdam", 
      "@type": "Person", 
      "name": "Weber, Michael"
    }, 
    {
      "affiliation": "Leibniz Institut fuer Astrophysik Potsdam", 
      "@type": "Person", 
      "name": "Strassmeier, Klaus G."
    }, 
    {
      "affiliation": "Harvard\u2013Smithsonian Center for Astrophysics", 
      "@type": "Person", 
      "name": "Dupree, Andrea"
    }
  ], 
  "url": "https://zenodo.org/record/4561732", 
  "datePublished": "2021-02-25", 
  "keywords": [
    "Post main sequence cool stars"
  ], 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.5281/zenodo.4561732", 
  "@id": "https://doi.org/10.5281/zenodo.4561732", 
  "@type": "CreativeWork", 
  "name": "The Curious Case of Betelgeuse"
}
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