Accurate rho and log g of delta Sct stars using Asteroseismology - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2017

Accurate rho and log g of delta Sct stars using Asteroseismology

Résumé

In this work, we present a new method to determine the surface gravity of delta Sct stars. We used a refined Delta nu-rho relation and the stellar parallaxes or luminosities to determine their masses and radii. A comparison with the data obtained from the binary analysis, has shown that the values found by both methods are equivalent, within the uncertainties. Moreover, thanks to the refined relation, the uncertainties in log g are of the order of those usually estimated with high-resolution spectroscopy. Because of that, this new method to determine the surface gravity is an important step-forward to break the degeneracy problem in the spectroscopic analysis.
Fichier non déposé

Dates et versions

hal-03734221 , version 1 (21-07-2022)

Identifiants

  • HAL Id : hal-03734221 , version 1

Citer

A. García Hernández, M. J. P. F. G. Monteiro, Z. Guo, Daniel Reese, Juan Carlos Suárez, et al.. Accurate rho and log g of delta Sct stars using Asteroseismology. Seismology of the Sun and the Distant Stars 2016 Using Today's Successes to Prepare the Future Joint TASC2 & KASC9 Workshop - SPACEINN & HELAS8, Jul 2016, Terceira-Açores, Portugal, Portugal. ⟨hal-03734221⟩
3 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More