Novel techniques for the identification of noise contributions to full-disc helioseismic power spectra
| Type | Conference Proceeding (Non-Journal item) |
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| Original language | English |
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| Title of host publication | SOHO 14/GONG 2004 Workshop - Helio- and Asteroseismology: |
| Subtitle of host publication | Towards a Golden Future |
| Pages | 360-363 |
| Number of pages | 4 |
| Edition | 559 |
| Publication status | Published - 2004 |
| Event | SOHO 14/GONG 2004 Workshop - Helio- and Asteroseismology: Towards a Golden Future - New Haven, CT, United States of America Duration: 12 Jul 2004 → 16 Jul 2004 |
Publication series
| Name | European Space Agency, (Special Publication) ESA SP |
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| ISSN (Print) | 0379-6566 |
Conference
| Conference | SOHO 14/GONG 2004 Workshop - Helio- and Asteroseismology: Towards a Golden Future |
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| Country/Territory | United States of America |
| City | New Haven, CT |
| Period | 12 Jul 2004 → 16 Jul 2004 |
| Links |
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| Permanent link | Permanent link |
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Abstract
The continuum spectrum of noise found in the power spectra of Doppler shift measurements of the Sun provides information concerning non-oscillatory effects in the photosphere and forms a background against which oscillation modes must be detected. A proper determination of the continuum spectrum requires the genuine solar signal to be identified from amongst a number of instrumental effects. A number of authors have used cross-spectra form from simultaneous data sets to help to achieve such identification. In this paper we build on recent advances in the understanding of the noise characteristics of resonant scattering spectrometers to develop alternative techniques for isolating and evaluating solar and different instrumental noise contributions. Brief analyses of simulated data and BiSON measurements are presented to illustrate the potential of the techniques. helioseismology; noise level.