The purpose of the HH exercise
In the course of 2000, two hare-hound exercises were independently performed by two teams of the COROT sismogroup:
The aim of such exercises, which are commonly used in helioseismology, is to prepare the data analysis and scientific interpretation of the asteroseismic COROT observations. It helps to develop and test the tools which are needed for the interpretation.Data Analysis Constraint in terms of stellar internal structure
At the present stage of the COROT preparation programme, this activity
is also intended to bring indications and criteria to optimize the field
selection. The procedure and some results were reported during the
COROT-SWG-Milestone2000
meeting and are available in the proceedings (see the reports of Appourchaux
Th. et al., Berthomieu G,. Provost J.). They showed that interesting
things could be learned from such exercises but it appeared that this was
a first very simplified step and that it was worth performing a more
realistic exercise which would involve the two groups.
This imply more relevant oscillation spectra for synthetic light curves
to be analysed and more relevant precision on seismic parameters
used for seismic interpretation.
Thus the responsibles of the two groups tried to work out a second hare
hound exercise which consists in constructing simulated time series
which represent as well as possible the observation of a puslsating star
by COROT. These time series are then used to extract the frequencies and
interpret them in terms of internal structure and rotation of the star.
Last updated by Thierry
Appourchaux on October 29, 2001