Abstract
The Stellar Seismic Indices database (hereafter SSI) has been developed within the SPACEInn project funded under the UE Seventh Framework Programme (FP7). This data base aims at providing stellar seismic indices of solar-like oscillating stars as well as other stellar indices such as the main characteristics of stellar granulation. These indices are extracted using an automatic method, which is able to derive simultaneously the seismic and granulation parameters. This method was applied to almost all Kepler long-cadence light-curves and to almost all CoRoT targets observed in the faint fields. A total of about 320 000 targets have been analyzed, among which seismic indices and granulation parameters have been extracted for about 18 000 redgiants. In this article, we present the data base content, its interface, as well as some illustrative results.
Highlights
The Stellar Seismic Indices database has been developed within the SPACEInn project funded under the UE Seventh Framework Programme (FP7)
Three seismic indices are extracted from the fitted power density spectrum (PDS):
The peak frequency, νmax: it is defined as the frequency at which the oscillation spectrum maximum peaks in the PDS;
Summary
The latter is composed of an activity component (green line), a granulation component (blue line), and an oscillation pattern (red line). The mean large separation, ∆ν: this quantity corresponds to the mean frequency spacing between two consecutive p-modes (with same angular degree). It is derived using the Universal Pattern as proposed by [2];. The variance of the integrated brightness fluctuations, σ2, which corresponds to the total integrated energy within the granulation background
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