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Absolute properties of RU Cnc revisited: an active RS CVn-type eclipsing binary with red giant branch and main-sequence components

Cokluk, K. A.; Kocak, D.; Icli, T.; Karakose, S.; Ustundag, S.; Yakut, K.


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{
  "DOI": "10.1093/mnras/stz2051", 
  "abstract": "We present observations and analysis of an RS CVn-type double-lined eclipsing binary system, RU Cnc. The system has been observed for over a century. High-quality long-cadence observations, newly obtained from the Kepler K2 C5 and C18 campaigns, and two radial velocity curves were combined and analysed simultaneously, assuming a multispot model. The masses, radii and luminosities of the component stars have been precisely obtained as , , , , and, with a separation of . The distance of the system is determined to be pc, which is consistent with the Gaia Data Release 2 result. Long-term detailed period variation analysis of the system indicates a period decrease of 7.9x10(-7) d yr(-1). The results suggest that the cooler component is on the red giant branch (RGB) and the hotter component is still on the main sequence.", 
  "author": [
    {
      "family": "Cokluk", 
      "given": " K. A."
    }, 
    {
      "family": "Kocak", 
      "given": " D."
    }, 
    {
      "family": "Icli", 
      "given": " T."
    }, 
    {
      "family": "Karakose", 
      "given": " S."
    }, 
    {
      "family": "Ustundag", 
      "given": " S."
    }, 
    {
      "family": "Yakut", 
      "given": " K."
    }
  ], 
  "container_title": "MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY", 
  "id": "68921", 
  "issue": "4", 
  "issued": {
    "date-parts": [
      [
        2019, 
        1, 
        1
      ]
    ]
  }, 
  "page": "4520-4525", 
  "title": "Absolute properties of RU Cnc revisited: an active RS CVn-type eclipsing binary with red giant branch and main-sequence components", 
  "type": "article-journal", 
  "volume": "488"
}
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