Poster Open Access

Unveiling the power spectra of δ Sct stars with TESS. The temperature, gravity, and frequency scaling relation

S. Barceló Forteza; A. Moya; D. Barrado; E. Solano; S. Martín-Ruiz; J.C. Suárez; A. García Hernández

Thanks to long-duration high-cadence light curves from TESS, we suggest the frequency at maximum power as a proper indicative of the mean temperature and surface gravity for delta Scuti stars. This seismic index do not depend on rotation or inclination unlike photometric and spectroscopic techniques that may be significantly affected by gravity-darkening effect or extinction. Thus, it is posible to improve their distance, age, and habitable zone measurements for this kind of stars.

Files (1.4 MB)
Name Size
1.4 MB Download
All versions This version
Views 110110
Downloads 4646
Data volume 65.8 MB65.8 MB
Unique views 8585
Unique downloads 4545


Cite as