Mathematics – Probability
Scientific paper
Jan 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.485..225b&link_type=abstract
In: Proceedings of the First Eddington Workshop on Stellar Structure and Habitable Planet Finding, 11 - 15 June 2001, Córdoba, S
Mathematics
Probability
Stars:Variability, Planets: Earth-Like Exoplanets
Scientific paper
The amplitude of radial velocity of a star coorbiting with an Earth-like planet (several cm/s) is too low to be measured; the probability to detect such planet during a transit is very low, too. There is necessity to search for another way to detect Earth-like planets. To attain this goal we propose to use high time resolution photometry of pulsating stars. Any star oscillates with a period and an amplitude depending on stellar parameters. The light of the star arrives to the observer in a time affected by the changes of distance during the revolution around the barycenter of the system. By this reason individual phases of oscillation of the light curve (for example maximum or minimum) should be observed at the different moments. The time delay is of a few milliseconds for opposite positions with respect to the barycenter. We analyse the possibilities of detecting this effect for different kinds of star.
Bartolini Corrado
Beskin Gregory
Guarnieri Adriano
Piccioni Adalberto
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