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Long-term correlations in solar proxies and solar wind parameters

Reda, Raffaele; Alberti, Tommaso; Berrilli, Francesco; Giobbi, Piermarco; Giovannelli, Luca; Penza, Valentina


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{
  "description": "<p>Solar variability related to its magnetic activity can be quantified by using synthetic indices (e.g. sunspots number) or physical ones (e.g. chromospheric proxies). In order to connect the long-term solar activity variations to solar wind properties, we use Ca II K index and solar wind OMNI data in the time interval between 1965 and 2019, which almost entirely cover&nbsp;the last 5 solar cycles. A time lag in the correlation between the parameters is found. This time shift seems to show a temporal evolution over the different solar cycles. The advantage to use a chromospheric proxy opens the possibility to extend the relation found for the Sun to link stellar variability and stellar wind properties in Sun-like stars.</p>", 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "creator": [
    {
      "affiliation": "Department of Physics, University of Rome \"Tor Vergata\"", 
      "@type": "Person", 
      "name": "Reda, Raffaele"
    }, 
    {
      "affiliation": "INAF - Istituto di Astrofisica e Planetologia Spaziali", 
      "@type": "Person", 
      "name": "Alberti, Tommaso"
    }, 
    {
      "affiliation": "Department of Physics, University of Rome \"Tor Vergata\"", 
      "@type": "Person", 
      "name": "Berrilli, Francesco"
    }, 
    {
      "affiliation": "Department of Physics, University of Rome \"Tor Vergata\"", 
      "@type": "Person", 
      "name": "Giobbi, Piermarco"
    }, 
    {
      "affiliation": "Department of Physics, University of Rome \"Tor Vergata\"", 
      "@type": "Person", 
      "name": "Giovannelli, Luca"
    }, 
    {
      "affiliation": "Department of Physics, University of Rome \"Tor Vergata\"", 
      "@type": "Person", 
      "name": "Penza, Valentina"
    }
  ], 
  "url": "https://zenodo.org/record/4565517", 
  "datePublished": "2021-02-26", 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.5281/zenodo.4565517", 
  "@id": "https://doi.org/10.5281/zenodo.4565517", 
  "@type": "MediaObject", 
  "name": "Long-term correlations in solar proxies and solar wind parameters"
}
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