activity
19982021
most citedHST Observations of the White Dwarf Cooling Sequence of M4

134 citations · 436 across the 7 of their papers we have counts for

collaborators

7 papers

astro-ph.GA2021★ 38 cited

On the Use of Field RR Lyrae as Galactic Probes. III. The -element abundances

J. Crestani, V. F. Braga, M. Fabrizio +33

We provide the largest and most homogeneous sample of -element (Mg, Ca, Ti) and iron abundances for field RR Lyrae (RRLs, 162 variables) by using high-resolution spectra. The cu…

astro-ph.SR2016★ 24 cited

Lost and found: evidence of Second Generation stars along the Asymptotic Giant Branch of the globular cluster NGC 6752

E. Lapenna, C. Lardo, A. Mucciarelli +7

We derived chemical abundances for C, N, O, Na, Mg and Al in 20 asymptotic giant branch (AGB) stars in the globular cluster NGC 6752. All these elements (but Mg) show intrinsic sta…

astro-ph2004★ 43 cited

Surface Brightness and Stellar Populations at the Outer Edge of the Large Magellanic Cloud: No Stellar Halo Yet

C. Gallart, P. B. Stetson, E. Hardy +2

We present a high quality CMD for a 36'x 36' field located 8 degrees (7 kpc) from the LMC center, as well as a precise determination of the LMC surface brightness derived from the…

astro-ph2004★ 134 cited

HST Observations of the White Dwarf Cooling Sequence of M4

Brad Hansen, Harvey Richer, Greg Fahlman +7

We investigate in detail the white dwarf cooling sequence of the globular cluster Messier 4. In particular we study the influence of various systematic uncertainties, both observat…

astro-ph2001★ 20 cited

Luminosity and mass function of galactic open clusters: I. NGC 4815

L. Prisinzano, G. Carraro, G. Piotto +3

We present deep V and I photometry for the open cluster NGC 4815 and four surrounding Galactic fields down to a limiting magnitude . These data are used to study cluster s…

astro-ph1999★ 119 cited

Binary Microlensing Events from the MACHO Project

MACHO, GMAN collaborations, : +1

We present the lightcurves of 21 gravitational microlensing events from the first six years of the MACHO Project gravitational microlensing survey which are likely examples of lens…