496 citations · 2.4k across the 11 of their papers we have counts for
11 papers
BVI Photometry and the Red Giant Branch Luminosity Function of M15
Diane K. Feuillet, Nathaniel E. Q. Paust, Brian Chaboyer
We present new photometry containing 40,000 stars of the Galactic globular cluster M15 (NGC 7078) covering a arcminute area centered on the cluster with a magn…
The ACS survey of globular clusters. XIII. Photometric calibration in comparison with Stetson standards
Maren Hempel, Ata Sarajedini, Jay Anderson +11
In this study we compare the photometric data of 34 Milky Way globular clusters, observed within the ACS Treasury Program (PI: Ata Sarajedini) with the corresponding ground-based d…
The ACS Survey of Galactic Globular Clusters. XII. Photometric Binaries along the Main-Sequence
A. P. Milone, G. Piotto, L. R. Bedin +15
The fraction of binary stars is an important ingredient to interpret globular cluster dynamical evolution and their stellar population. We investigate the properties of main-sequen…
The ACS Survey of Galactic Globular Clusters XI: The Three-Dimensional Orientation of the Sagittarius Dwarf Spheroidal Galaxy and its Globular Clusters
Michael H. Siegel, Steven R. Majewski, David R. Law +13
We use observations from the ACS study of Galactic globular clusters to investigate the spatial distribution of the inner regions of the disrupting Sagittarius dwarf spheroidal gal…
The ACS Survey of Galactic Globular Clusters. IX. Horizontal Branch Morphology and the Second Parameter Phenomenon
Aaron Dotter, Ata Sarajedini, Jay Anderson +11
The horizontal branch (HB) morphology of globular clusters (GCs) is most strongly influenced by metallicity. The second parameter phenomenon acknowledges that metallicity alone is…
The ACS Survey of Galactic Globular Clusters. VII. Relative Ages
Antonio Marin-Franch, Antonio Aparicio, Giampaolo Piotto +13
The ACS Survey of Galactic Globular Clusters is a Hubble Space Telescope (HST) Treasury program designed to provide a new large, deep and homogeneous photometric database. Based on…