Poster Open Access

UCAC2 46706450: A rapidly rotating K-type subgiant with an extremely hot white dwarf companion

Nicole Reindl; Klaus Werner; Lisa Löbling; Ingrid Pelisoli; Veronika Schaffenroth; Alberto Rebassa-Mansergas; Puji Irawati; Juanjuan Ren


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    "description": "<p>F, G, or K-type stars with a white dwarf companion are relatively rarely known systems in comparison to thousands of M stars with white dwarf companions. We have recently studied one of those systems in detail, and found that the sub-components are very rare stars on their own. The UV source in our system turned out to be an extremely hot white dwarf with an effective temperature of 105,000K. The K-type star was found to be chromospherically active and one of the most rapidly rotating sub-giant known (v_rot=151km/s). Here we present the results of our analysis.</p>", 
    "language": "eng", 
    "title": "UCAC2 46706450: A rapidly rotating K-type subgiant with an extremely hot white dwarf companion", 
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        "affiliation": "Institut f\u00fcr Physik und Astronomie, Universit\u00e4t Potsdam, Karl-Liebknecht-Stra\u00dfe 24/25, Germany", 
        "name": "Nicole Reindl"
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        "affiliation": "Institut f\u00fcr Astronomie und Astrophysik, Kepler Center forAstro and Particle Physics, Eberhard Karls Universit\u00e4t, Sand 1, 72076T\u00fcbingen, Germany", 
        "name": "Klaus Werner"
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        "affiliation": "Institut f\u00fcr Astronomie und Astrophysik, Kepler Center forAstro and Particle Physics, Eberhard Karls Universit\u00e4t, Sand 1, 72076T\u00fcbingen, Germany", 
        "name": "Lisa L\u00f6bling"
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      {
        "affiliation": "Institut f\u00fcr Physik und Astronomie, Universit\u00e4t Potsdam, Karl-Liebknecht-Stra\u00dfe 24/25, Germany", 
        "name": "Ingrid Pelisoli"
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      {
        "affiliation": "Institut f\u00fcr Physik und Astronomie, Universit\u00e4t Potsdam, Karl-Liebknecht-Stra\u00dfe 24/25, Germany", 
        "name": "Veronika Schaffenroth"
      }, 
      {
        "affiliation": "Departament de F\u00edsica, Universitat Polit\u00e8cnica de Catalunya, c/Esteve Terrades 5, E-08860 Castelldefels, Spain", 
        "name": "Alberto Rebassa-Mansergas"
      }, 
      {
        "affiliation": "National Astronomical Research Institute of Thailand, Sirindhorn AstroPark, Donkaew, Mae Rim, Chiang Mai 50180, Thailand", 
        "name": "Puji Irawati"
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        "affiliation": "Key Laboratory of Space Astronomy and Technology, NationalAstronomical Observatories, Chinese Academy of Sciences, Beijing 100101, P. R. China", 
        "name": "Juanjuan Ren"
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