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Low-degree multi-spectral p-mode fitting
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Howe, R. (Rachel), Broomhall, Anne-Marie, Chaplin, William James, Elsworth, Yvonne and Jain, K. (2013) Low-degree multi-spectral p-mode fitting. Journal of Physics: Conference Series, Volume 440 . Article number 012011. doi:10.1088/1742-6596/440/1/012011 ISSN 1742-6596.
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WRAP_Broomhall_1742-6596_440_1_012011.pdf - Published Version Available under License Creative Commons Attribution. Download (1272Kb) | Preview |
Official URL: http://dx.doi.org/10.1088/1742-6596/440/1/012011
Abstract
We combine unresolved-Sun velocity and intensity observations at multiple wavelengths from the Helioseismic and Magnetic Imager and Atmospheric Imaging Array onboard the Solar Dynamics Observatory to investigate the possibility of multi-spectral mode-frequency estimation at low spherical harmonic degree. We test a simple multi-spectral algorithm using a common line width and frequency for each mode and a separate amplitude, background and asymmetry parameter, and compare the results with those from fits to the individual spectra. The preliminary results suggest that this approach may provide a more stable fit than using the observables separately.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QB Astronomy | ||||
Divisions: | Other > Institute of Advanced Study Faculty of Science, Engineering and Medicine > Science > Physics |
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Library of Congress Subject Headings (LCSH): | Sun -- Observations, Solar Dynamics Observatory (Spacecraft), Spectrum, Solar, Algorithms | ||||
Journal or Publication Title: | Journal of Physics: Conference Series | ||||
Publisher: | Institute of Physics Publishing Ltd. | ||||
ISSN: | 1742-6596 | ||||
Official Date: | 2013 | ||||
Dates: |
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Volume: | Volume 440 | ||||
Page Range: | Article number 012011 | ||||
DOI: | 10.1088/1742-6596/440/1/012011 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Open Access (Creative Commons) | ||||
Date of first compliant deposit: | 26 December 2015 | ||||
Date of first compliant Open Access: | 26 December 2015 | ||||
Funder: | United States. National Aeronautics and Space Administration (NASA) | ||||
Grant number: | NNH12AT11I (NASA) |
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