The INI has a new website!

This is a legacy webpage. Please visit the new site to ensure you are seeing up to date information.

Skip to content



The search for planets around alpha centauri A and B

Fischer, D (Yale)
Thursday 20 August 2009, 14:30-15:00

Meeting Room 2, CMS


We are carrying out an intensive Doppler search for low mass planets in the alpha Centauri system at the 1.5-m CTIO telescope. The binary star system presents a challenging environment for the accretion of planetesimals into protoplanets. However, dynamical simulations show that if they form, terrestrial mass planets within about 2 AU of either star could survive in stable orbits. We present the motivation for our exoplanet search and describe the auxiliary science: the power spectrum of p-mode oscillations, a study of the convective zone depth in A and B, and a measurement of the helium abundances in the stars. This program will also help us to determine the fundamental limits of Doppler planet searches. We will present the status of the project and our Doppler analysis.

Back to top ∧