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Asteroseismology of Solar-Type Stars with K2: Detection of Oscillations in C1 Data
Journal article   Open access

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

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, …
Publications of the Astronomical Society of the Pacific, Vol.127(956), pp.1038-1044
10-01-2015
DOI: https://doi.org/10.1086/683103

Abstract

Astronomy & Astrophysics Physical Sciences Science & Technology
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 Cl-like levels of photometric performance, and we can detect oscillations in subgiants having dominant oscillation frequencies around 1000 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 2.5 in amplitude would bring main-sequence stars with dominant oscillation frequencies as high as similar or equal to 2500 mu Hz into play as potential asteroseismic targets for K2.
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https://doi.org/10.1086/683103View
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