478 citations · 2.6k across the 58 of their papers we have counts for
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Evidence for a Long-Standing Top-Heavy IMF in the Central Parsec of the Galaxy
H. Maness, F. Martins, S. Trippe +10
We classify 329 late-type giants within 1 parsec of Sgr A*, using the adaptive optics integral field spectrometer SINFONI on the VLT. These observations represent the deepest spect…
Measuring ^{12}C(&alpha,&gamma)^{16}O from White Dwarf Asteroseismology
T. S. Metcalfe, M. Salaris, D. E. Winget
During helium burning in the core of a red giant, the relative rates of the 3&alpha and ^{12}C(&alpha,&gamma)^{16}O reactions largely determine the final ratio of carbon to oxygen…
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…
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…
The age of the oldest globular clusters
M. Salaris, S. Degl'Innocenti, A. Weiss
The age of three of the oldest clusters -- M15, M68, M92 -- has been redetermined. We use the latest EOS and opacity data available for calculating both isochrones and zero age hor…