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Mikkel Nørup Lund

Asteroseismology of Solar-Type Stars with K2: Detection of Oscillations in C1 Data

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

  • W. J. Chaplin
  • ,
  • M. N. Lund
  • R. Handberg
  • S. Basu
  • ,
  • L. A. Buchhave
  • ,
  • T. L. Campante
  • ,
  • G. R. Davies
  • ,
  • D. Huber
  • ,
  • D. W. Latham
  • ,
  • C. A. Latham, Danmark
  • A. Serenelli
  • ,
  • H. M. Antia
  • ,
  • T. Appourchaux
  • ,
  • W. H. Ball
  • ,
  • O. Benomar
  • ,
  • L. Casagrande
  • ,
  • J. Christensen-Dalsgaard
  • H. R. Coelho, Danmark
  • O. L. Creevey
  • ,
  • Y. Elsworth
  • ,
  • R. A. García
  • ,
  • P. Gaulme
  • ,
  • S. Hekker
  • ,
  • T. Kallinger
  • ,
  • C. Karoff
  • S. D. Kawaler
  • ,
  • H. Kjeldsen
  • ,
  • M. S. Lundkvist
  • F. Marcadon, Danmark
  • S. Mathur
  • ,
  • A. Miglio
  • ,
  • B. Mosser
  • ,
  • C. Régulo
  • ,
  • I. W. Roxburgh
  • ,
  • V. Silva Aguirre
  • D. Stello
  • K. Verma
  • ,
  • T. R. White, Georg-August Universität Göttingen
  • ,
  • T. R. Bedding
  • ,
  • T. Barclay
  • ,
  • D. L. Buzasi
  • ,
  • S. Dehuevels, Danmark
  • L. Gizon
  • ,
  • G. Houdek
  • S. B. Howell
  • ,
  • D. Salabert
  • ,
  • D. R. Soderblom, Danmark
We present the first detections by the NASA K2 mission of oscillations in solar-type stars, using short-cadence data collected during K2 Campaign 1 (C1). We understand the asteroseismic detection thresholds for C1-like levels of photometric performance, and we can detect oscillations in subgiants having dominant oscillation frequencies around 1000 μHz. Changes to the operation of the fine-guidance sensors are expected to give significant improvements in the high-frequency performance from C3 onwards. A reduction in the excess high-frequency noise by a factor of 2.5 in amplitude would bring main-sequence stars with dominant oscillation frequencies as high as ≃2500 μHz into play as potential asteroseismic targets for K2.
OriginalsprogEngelsk
TidsskriftPublications of the Astronomical Society of the Pacific
Vol/bind127
Nummer956
Sider (fra-til)1038-1044
Antal sider7
ISSN0004-6280
DOI
StatusUdgivet - 2015

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