188 citations · 652 across the 6 of their papers we have counts for
3 papers · 1 filter
The data analysis of HD209458 Ly-alpha transit occultation
J. -M. Désert, A. Vidal-Madjar, A. Lecavelier des Étangs +4
Using STIS - HST observations, we have detected an extended upper atmosphere in the extrasolar planet HD209458b . The spectra show an absorption of (15+/-4)% of the stellar Ly-alph…
Observations and Implications of the Star Formation History of the LMC
J. A. Holtzman, J. S. Gallagher, A. A. Cole +3
We present derivations of star formation histories based on color-magnitude diagrams of three fields in the LMC from HST/WFPC2 observations. A significant component of stars older…
Deep HST Observations of Star Clusters in NGC 1275
Matthew N. Carlson, Jon A. Holtzman, Alan M. Watson +3
We present an analysis of compact star clusters in deep HST/WFPC2 images of NGC 1275. B and R band photometry of roughly 3000 clusters shows a bimodality in the B-R colors, suggest…