The envelope of the power spectra of over a thousand δ Scuti stars. The T̅eff - νmax scaling relation

Bibcode
2018A&A...614A..46B
DOI
10.1051/0004-6361/201731803
Barceló Forteza, S.; Roca Cortés, T.; García, R. A.
Bibliographical reference

Astronomy and Astrophysics, Volume 614, id.A46, 8 pp.

Advertised on:
6
2018
Journal
Astronomy and Astrophysics
Number of authors
3
IAC number of authors
2
Citations
34
Refereed citations
30
Description
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 - ρ relation has been found for δ Scuti stars. Now, analysing 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. Table A.1 is only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (http://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/614/A46
Related projects
Helio and Asteroseismology
Helio and Astero-Seismology and Exoplanets Search
The principal objectives of this project are: 1) to study the structure and dynamics of the solar interior, 2) to extend this study to other stars, 3) to search for extrasolar planets using photometric methods (primarily by transits of their host stars) and their characterization (using radial velocity information) and 4) the study of the planetary
Savita
Mathur
In progress
Type
Refereed
Stellar & Interstellar Physics (FEEI)
Asteroseismology

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