p-mode power variation with solar atmosphere as observed in the Na D1 and K spectral lines

Simoniello, R.; Jiménez-Reyes, S. J.; García, R. A.; Pallé, P. L.
Bibliographical reference

Astronomische Nachrichten, Vol.329, Issue 5, p.494

Advertised on:
6
2008
Number of authors
4
IAC number of authors
0
Citations
10
Refereed citations
7
Description
In this work we investigate p-mode power variation with solar atmosphere. To this aim, we use THÉMIS observations of the Na D1 (λ5896 Å) and K (λ7699 Å) spectral lines. While the formation heights of the K spectral line are essentially located in the photospheric layer, the formation heights of the Na D1 line span a much wider region: from photosphere up to chromosphere. Hence, we had the opportunity to infer p-mode power variation up to the chromospheric layer. By analyzing power spectra obtained by temporal series at different points of the Na D1 and K spectral lines, we confirm and quantify the increase in p-mode power towards higher atmospheric layers. Furthermore, the large span in formation heights of the Na D1 line induces a larger enhancement of p-mode power with solar atmosphere compared to the K spectral line.
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