The envelope of the power spectra of over a thousand δScuti stars. The ${\bar{T}}_{eff}$-${\nu }_{max}$ scaling relation

Abstract

CoRoT and Kepler high-precision photometric data allowed the detection and characterization of the oscillation parameters in stars other than the Sun. Moreover, thanks to the scaling relations, it is possible to estimate masses and radii for thousands of solar-type oscillating stars. Recently, a Δν- ρrelation has been found for δScuti stars. Now, analyzing several hundreds of this kind of stars observed with CoRoT and Kepler, we present an empiric relation between their frequency at maximum power of their oscillation spectra and their effective temperature. Such a relation can be explained with the help of the κ-mechanism and the observed dispersion of the residuals is compatible with they being caused by the gravity-darkening effect.

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Cited by in corpus (4)

• The period-luminosity relation for delta Scuti stars using Gaia DR2 parallaxes
• Asteroseismic Fingerprints of Stellar Mergers
• Exploring the convective core of the hybrid $\delta$ Scuti-$\gamma$ Doradus star CoRoT 100866999 with asteroseismology
• Unveiling the power spectra of $\delta$ Scuti stars with TESS. The temperature, gravity, and frequency scaling relation