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.
Referencia bibliográfica

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

Fecha de publicación:
6
2018
Revista
Astronomy and Astrophysics
Número de autores
3
Número de autores del IAC
2
Número de citas
34
Número de citas referidas
30
Descripción
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
Proyectos relacionados
Helio y Astroseismología
Sismología Solar y Estelar y Búsqueda de Exoplanetas
Los objetivos principales de este proyecto son: 1) estudiar la estructura y la dinámica del interior solar, 2) ampliar este estudio a otros tipos de estrellas y 3) buqueda de planetas extrasolares utilizando métodos fotométricos y su caracterización con información complementaria (espectrometría). Para alcanzar el primer objetivo, utilizamos la
Savita
Mathur
En ejecución
Tipo
Con árbitro
Física estelar e interestelar (FEEI)
Asterosismología

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