478 citations · 2.6k across the 58 of their papers we have counts for
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astro-ph1999★ 2 cited
The absolute magnitudes of RR Lyrae stars from Hipparcos parallaxes
M. A. T. Groenewegen, M. Salaris
Using the method of ``reduced parallaxes'' for the Halo RR Lyrae stars in the Hipparcos catalogue we derive a zero point of 0.77 0.26 mag for an assumed slope of 0.18 in the…
astro-ph1999★ 99 cited
Comparison between predicted and empirical DV(Bump -HB) in Galactic Globular Clusters
M. Zoccali, S. Cassisi, G. Piotto +2
We present observational estimates of DV(Bump-HB) in a sample of 28 Galactic Globular Clusters (GGCs) observed by HST. The photometric accuracy and the sizable number of stars meas…