Poster
M. Lykke Winther, J. L. Rørsted, I. W. Roxburgh, K. Verma, M. S. Cunha, A. Stokholm
Abstract
With the great inference power asteroseismology brings to model fitting of stars, one
of the greatest challenges is the asteroseismic surface effect. While it has previously been
circumvented using combinations of individual frequencies, most often the frequency separation
ratios, they are derived using several approximations which decreases the precision of the
inferred parameters. Here, we present the epsilon differences method, which utilizes how
specific combinations of individual frequencies cancel out the contribution from the surface,
derived using less approximations than frequency separation ratios, and how it performs in
comparison to the established methods.
8th TESS/15th Kepler Asteroseismic Science Consortium Workshop
Porto, Portugal
2024 July
