EAS Publications Series
Volume 73-74, 2015Asteroseismology and Next Generation Stellar Models - EES2014
|Page(s)||193 - 259|
|Published online||01 February 2016|
E. Michel, C. Charbonnel and B. Dintrans (eds)
EAS Publications Series, 73–74 (2015) 193-259
Observational techniques to measure solar and stellar oscillations
Laboratoire AIM, CEA/DSM – CNRS, Université Paris Diderot – IRFU/SAp, Centre de Saclay, 91191 Gif-sur-Yvette Cedex, France
As said by Sir A. Eddington in 1925: “Our telescopes may probe farther and farther into the depths of space. At first sight it would seem that the deep interior of the sun and stars is less accessible to scientific investigation than any other region of the universe. What appliance can pierce through the outer layers of a star and test the conditions within?” Eddington (). Nowadays, asteroseismology has proven its ability to pierce below stellar photospheres and allow us to “see” inside the interior of thousands of stars down to the stellar cores, answering the question asked by Eddington ninety years ago. In this chapter we review the general properties of the spectral analysis which is the base of any asteroseismic investigation. After describing the stellar power spectrum, we will describe in details the characterization of the modal spectrum. This chapter will end by a brief description of the instrumentation in both helio and asteroseismology.
© EAS, EDP Sciences, 2016
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