Asteroseismology of the Multiplanet System K2-93

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DOI

  • Mikkel N. Lund
  • Emil Knudstrup
  • Victor Silva Aguirre
  • Sarbani Basu, Yale Univ, Yale University, Dept Phys & Astron
  • ,
  • Ashley Chontos, Univ Hawaii, University of Hawaii System, Inst Astron
  • ,
  • Carolina Von Essen
  • William J. Chaplin, University of Birmingham
  • ,
  • Allyson Bieryla, Harvard Univ, Smithsonian Institution, Harvard University, Smithsonian Astrophysical Observatory, Harvard Smithsonian Ctr Astrophys
  • ,
  • Luca Casagrande, Australian Natl Univ, Australian National University, Mt Stromlo Observ, Res Sch Astron & Astrophys
  • ,
  • Andrew Vanderburg, Univ Texas Austin, University of Texas System, University of Texas Austin, Dept Astron
  • ,
  • Daniel Huber, Univ Hawaii, University of Hawaii System, Inst Astron
  • ,
  • Stephen R. Kane, Univ Calif Riverside, University of California System, University of California Riverside, Dept Earth & Planetary Sci
  • ,
  • Simon Albrecht
  • David W. Latham, Harvard Univ, Smithsonian Institution, Harvard University, Smithsonian Astrophysical Observatory, Harvard Smithsonian Ctr Astrophys
  • ,
  • Guy R. Davies, Univ Birmingham, University of Birmingham, Sch Phys & Astron
  • ,
  • Juliette C. Becker, Univ Michigan, University of Michigan, University of Michigan System, Dept Astron
  • ,
  • Joseph E. Rodriguez, Harvard Univ, Smithsonian Institution, Harvard University, Smithsonian Astrophysical Observatory, Harvard Smithsonian Ctr Astrophys

We revisit the analysis of the bright multiplanet system K2-93, discovered with data taken by the K2 mission. This system contains five identified planets ranging in size from sub-Neptune to Jupiter size. The K2 data available at the discovery of the system only showed single transits for the three outer planets, which allowed weak constraints to be put on their periods. As these planets are interesting candidates for future atmospheric studies, a better characterization of the host star and tighter constraints on their orbital periods are essential. Using new data from the K2 mission taken after the discovery of the system, we perform an asteroseismic characterization of the host star. We are able to place strong constraints on the stellar parameters and obtain a value for the stellar mass of

OriginalsprogEngelsk
Artikelnummer248
TidsskriftAstronomical Journal
Vol/bind158
Nummer6
Antal sider12
ISSN0004-6256
DOI
StatusUdgivet - dec. 2019

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