VIRGO Team Science Investigations
For the scientific evaluation of the data each potential user of the VIRGO data submits a written proposal to the PI of what he/she would like to do and how it will be done. These proposals will be discussed and `approved' by the VIRGO team. This is to make sure that the data are used correctly by those team members not directly involved in instrumentation, to avoid duplication by coordination, and to manage in the broadest sense the attribution of science projects amongst the team scientists and CoIs. On the other hand, it shall also foster co-operation between `observers' and theorists. Such proposals can also cover co-investigations with GOLF and SOI/MDI.
The outcome of the Davos meeting was the following:
- A. Theoretical inputs
- 1. g-mode visibility function
- 2. g-mode frequencies
- B. Data reduction methods
- 1. LOI spatial filters for p modes
- 2. LOI spatial filters for g modes
- 3. Fourier spectrum package
- 4. Wavelet analysis package
- 5. Bi-multi-variate analysis package
- 6. Unequal sampling due to S/C-Sun distance change abd due to different weigthting of the origin of the radiation on the solar surface
- 7. Maximum Likelihood Estimator package
- C. Science for verification and determination of data products quality
- 1. LOI focal length calibration
- 2. Absolute radiometry with PMO6-V & DIARAD radiometers
- 3. LOI and MDI p-mode verification studies
- 4. Facular sensitivity of LOI guiding pixels
- 5. p modes from the SPM
- 6. p modes with the LOI
- 7. Quality control of radiometric data and solar noise investigation
- Solar noise influence on the SOHO helioseismology experiments
- D. p-mode studies
- 1. Asymmetry of p-mode line profiles
- 2. Excitation and spectral properties of p mode
- 3. Internal rotation with LOI splittings
- 4. Obliquely rotating core of the Sun
- 5. Lifetimes of p-modes with wavelet analysis
- 6. p-mode intensity/velocity studies; VIRGO-GOLF-(MDI)
- 7. p-mode spectrum study (proposal by Roca, Rabello, Jimenez, Regulo and TBD. To be written soon!)
- 8. Flux versus velocity phase lags and amplitude ratios for p modes.
- E. Solar variability studies
- 1. Solar radius variation
- 2. Solar Irradiance Variablity Studies
- 3. Properties of solar noise in irradiance and radiance
- 4. Total solar and spectral irradiance variability related to solar magnetic activity
- 5. Contribution to the understanding of the 11 year cycle of solar irradiance variations, using the LOI.
- 6. On the energy balance of solar active regions
- 7. Diameter and oblateness measurements using LOI guiding pixels
- 8. Total solar irradiance
- F. g-mode studies
The g-mode detection and classification is to be seen as concerted VIRGO effort and the proposals are to be seen as parts of this effort. The presentation and final judgement on the results within this area will be the PI's responsibility. These proposals should be organized such that the activities are complementary and increase the overall chance of success.
Last updated by Thierry Appourchaux on Wenesday, September 21, 1995 at 11:39