Wunnenberg, M. and Hirzberger, J. and Kneer, F. (2002) Search for short-period acoustic waves with high resolution 2D-spectra. Il nuovo cimento C, 25 (5\6). pp. 551-555. ISSN 1826-9885
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Abstract
The data for this contributionw ere takeninAugust 2000 with the “G¨ottingen” two-dimensional spectrometer in the VTT on Tenerife. Our spectrometer is based on two scanning Fabry-Perot Interferometers (FPIs). The non-magnetic Fe I 5434˚A line was observed in the quiet Sun at disk center. Time sequences of 41 min duration and with 25 s cadence were taken. Strictly simultaneously with the narrow-band FPI images (32m˚A FWHM), broad-band images were recorded. The latter were reconstructed with speckle methods. With the known “true” broad-band object we are able to restore the narrow-band images as well. Our aim is to find propagating acoustic waves at short periods and small scales. The results obtained so far are presented and the prospects are discussed.
| Item Type: | Article |
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| Additional Information: | Paper presented at the International Meeting on THEMIS and the New Frontiers of Solar Atmosphere Dynamics, Rome, Italy, March 19-21, 2001. |
| Uncontrolled Keywords: | Photosphere, granulation; Conference proceedings |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 12 Mar 2020 14:26 |
| Last Modified: | 12 Mar 2020 14:26 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/14845 |
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