3 papers
astro-ph2002
Confirmation of Solar-Like Oscillations in eta Bootis
H. Kjeldsen, T. R. Bedding, I. K. Baldry +9
We report observations of the G0 subgiant eta Boo made in 1998, in Balmer-line equivalent width with the 2.5-m Nordic Optical Telescope and in velocity with the 24-inch Lick CAT. I…
astro-ph2000
A Lack of Planets in 47 Tucanae from an HST Search
Ronald L. Gilliland, T. M. Brown, P. Guhathakurta +21
We report results from a large Hubble Space Telescope project to observe a significant (~34,000) ensemble of main sequence stars in the globular cluster 47 Tucanae with a goal of d…
astro-ph1998
Oscillation mode identifications and models for the delta Scuti star FG Virginis
M. Viskum, H. Kjeldsen, T. R. Bedding +4
We present new spectroscopic and photometric time series observations of the delta Scuti star FG~Vir. We detect the oscillations via changes in the equivalent widths of hydrogen an…