51 Pegasi and Tau Boötis: Planets or Pulsations?
Scott D. Horner
Pennsylvania State University
Timothy M. Brown, Edward Kennelly, & R. Kotak
High Altitude Observatory
Saurabh Jha, Sylvain G. Korzennik, Peter Nisenson, & Robert W. Noyes
Harvard-Smithsonian Center for Astrophysics
It has recently been suggested (Gray 1997) that the radial velocity
variations observed in the spectra of 51 Pegasi are the result of stellar
pulsations as opposed to the reflex motion due to an orbital companion.
The AFOE group has confirmed the radial velocity variations in 51 Pegasi
and tau Bootis. Here we discuss the results of a search for evidence of
pulsations in the AFOE data for these two stars, as well as attempt to clear
up misconceptions regarding pulsations circulated as a result of the
current debate about the nature of the 51 Pegasi radial velocity
This poster with the figures was presented at
The 10th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun
, Cambridge, July 1997.
Sylvain G. Korzennik
Last modified: Tue Aug 12 16:09:36 1997