| Autor: |
Michel Eric, Dupret Marc-Antoine, Reese Daniel, Ouazzani Rhita-Maria, Debosscher Jonas, Hernández Antonio García, Belkacem Kevin, Samadi Reza, Salmon Sébastien, Suarez Juan Carlos, Forteza Sebastia Barceló |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
EPJ Web of Conferences, Vol 160, p 03001 (2017) |
| Popis: |
Inspired by the so appealing example of red giants, where going from a handful of stars to thousands revealed the structure of the eigenspectrum, we inspected a large homogeneous set of around 1860 δ Scuti stars observed with CoRoT. This unique data set reveals a common regular pattern which appears to be in agreement with island modes featured by theoretical non-perturbative treatments of fast rotation. The comparison of these data with models and linear stability calculations suggests that spectra can be fruitfully characterized to first order by a few parameters which might play the role of seismic indices for δ Scuti stars, as Δv and vmax do for red giants. The existence of this pattern offers an observational support for guiding further theoretical works on fast rotation. It also provides a framework for further investigation of the observational material collected by CoRoT ([1]) and Kepler ([2]). Finally, it sketches out the perspective of using δ Scuti stars pulsations for ensemble asteroseismology |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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