123 citations · 287 across the 4 of their papers we have counts for
4 papers
Measuring the stellar population parameters of the early-type galaxy NGC 3923 -- The challenging measurement of the initial mass function
A. Feldmeier-Krause, I. Lonoce, W. L. Freedman
Recent studies of early-type galaxies have suggested that the initial mass function (IMF) slope is bottom-heavy, i.e. they contain a larger fraction of low-mass stars than the Milk…
On the distance of the globular cluster M4 (NGC 6121) using RR Lyrae stars: I. optical and near-infrared Period-Luminosity and Period-Wesenheit relations
V. F. Braga, M. Dall'Ora, G. Bono +16
We present new distance determinations to the nearby globular M4 (NGC~6121) based on accurate optical and Near Infrared (NIR) mean magnitudes for fundamental (FU) and first overton…
The Carnegie Supernova Project: First Near-Infrared Hubble Diagram to z~0.7
Wendy L. Freedman, Christopher R. Burns, M. M. Phillips +37
The Carnegie Supernova Project (CSP) is designed to measure the luminosity distance for Type Ia supernovae (SNe Ia) as a function of redshift, and to set observational constraints…
HST observations of the Local Group dwarf galaxy Leo I
C. Gallart, W. L. Freedman, M. Mateo +10
We present deep HST F555W (V) and F814W (I) observations of a central field in the Local Group dwarf spheroidal (dSph) galaxy Leo I. The resulting color-magnitude diagram (CMD) rea…