My areas of research are helioseismology, asteroseismology and exo-planet
detection.
- Helioseismology
- - Study of the solar interior using the properties of the solar
oscillations.
My current main interests are:
- precise mode fitting at low and intermediate degrees
- fitting at high degrees
- the solar rotation and its variation with the solar cycle
- time-distance helioseismology, and its reliability around active
regions.
- Asteroseismology
- - Study of stellar interiors, by measuring stellar oscillations.
Carried out seminal work using radial velocity with the AFOE on bright stars.
- Exo-planet detection
- - Detection of planets outside our solar system.
Carried out seminal planet detection work with the AFOE
instrument, using precise radial velocity techniques.
Current interest: to contribute to the deployment of a new generation
of wavelength calibrator, known as astro-comb laser, to push the radial
velocity well below the cm/s.
Tables
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A large set of tables of mode parameters
resulting from my fitting methodologies are available.
You will find:
- mode parameters at low and intermediate degrees:
0 ≤ ℓ ≤ 200|300 (i.e.,
resolved modes), using all the GONG, MDI and HMI data available to date, and
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mode parameters estimates at high degrees:
100 ≤ ℓ ≤ 900|1000 (based on ridge
fitting, but then corrected from ridge to mode estimates), based on 90, 98 and
67 days of MDI, GONG & HMI observations, corresponding to
MDI's 2001, 2002 and 2010 Dynamics epochs, respectively.
The tables for low and intermediate degrees were last updated on Sep 20 2022.
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Last modified: Tuesday, 20-Sep-2022 19:57:04 EDT
