An Introduction to Data Analysis in Asteroseismology

Abstract

A practical guide is presented to some of the main data analysis concepts and techniques employed contemporarily in the asteroseismic study of stars exhibiting solar-like oscillations. The subjects of digital signal processing and spectral analysis are introduced first. These concern the acquisition of continuous physical signals to be subsequently digitally analyzed. A number of specific concepts and techniques relevant to asteroseismology are then presented as we follow the typical workflow of the data analysis process, namely, the extraction of global asteroseismic parameters and individual mode parameters (also known as peak-bagging) from the oscillation spectrum.

Lecture presented at the IVth Azores International Advanced School in Space Sciences on "Asteroseismology and Exoplanets: Listening to the Stars and Searching for New Worlds" (arXiv:1709.00645), which took place in Horta, Azores Islands, Portugal in July 2016

References in corpus (21)

• The PLATO 2.0 Mission
• Asteroseismology of Solar-Type and Red-Giant Stars
• The connection between stellar granulation and oscillation as seen by the Kepler mission
• Hot super-Earths stripped by their host stars
• The relation between $\Delta \nu$ and ${\nu }_{max}$ for solar-like oscillations
• Red-giant seismic properties analyzed with CoRoT
• An ancient extrasolar system with five sub-Earth-size planets
• A multi-site campaign to measure solar-like oscillations in Procyon. I. Observations, Data Reduction and Slow Variations
• The amplitude of solar oscillations using stellar techniques
• The asteroseismic potential of TESS: exoplanet-host stars
• Super-Nyquist asteroseismology with the Kepler Space Telescope
• Bayesian peak-bagging of solar-like oscillators using MCMC: A comprehensive guide
• Global asteroseismic properties of solar-like oscillations observed by Kepler : A comparison of complementary analysis methods
• A multi-site campaign to measure solar-like oscillations in Procyon. II. Mode frequencies
• Asteroseismology from multi-month Kepler photometry: the evolved Sun-like stars KIC 10273246 and KIC 10920273
• Multisite campaign on the open cluster M67. II. Evidence for solar-like oscillations in red giant stars
• Super-Nyquist asteroseismology of solar-like oscillators with Kepler and K2 - expanding the asteroseismic cohort at the base of the red-giant branch
• Asteroseismology of 1523 misclassified red giants using $\text{Kepler}$ data
• Asteroseismology of solar-type stars with K2
• Modelling the Autocovariance of the Power Spectrum of a Solar-Type Oscillator
• On the backwards difference filter

Cited by in corpus (4)

• A Hot Saturn Orbiting An Oscillating Late Subgiant Discovered by TESS
• TOI-257b (HD 19916b): A Warm sub-Saturn Orbiting an Evolved F-type Star
• TESS Asteroseismology of the known red-giant host stars HD 212771 and HD 203949
• The subgiant HR 7322 as an asteroseismic benchmark star