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29 March 2024
 
  » arxiv » 1507.1827

 Article overview


Asteroseismology of solar-type stars with K2
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 ; A. Serenelli ; H. M. Antia ; T. Appourchaux ; W. H. Ball ; O. Benomar ; L. Casagrande ; J. Christensen-Dalsgaard ; H. R. Coelho ; O. L. Creevey ; Y. Elsworth ; R. A. Garc ; P. Gaulme ; S. Hekker ; T. Kallinger ; C. Karoff ; S. D. Kawaler ; H. Kjeldsen ; M. S. Lundkvist ; F. Marcadon ; S. Mathur ; A. Miglio ; B. Mosser ; C. R ; I. W. Roxburgh ; V. Silva Aguirre ; D. Stello ; K. Verma ; T. R. White ; T. R. Bedding ; T. Barclay ; D. L. Buzasi ; S. Deheuvels ; L. Gizon ; G. Houdek ; S. B. Howell ; D. Salabert ; D. R. Soderblom ;
Date 7 Jul 2015
AbstractWe 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 $1000, m mu Hz$. 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 two-and-a-half in amplitude would bring main-sequence stars with dominant oscillation frequencies as high as ${simeq 2500}, m mu Hz$ into play as potential asteroseismic targets for K2.
Source arXiv, 1507.1827
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