Measurement of the distances to nearby galaxies has improved rapidly in recent decades.
The ever-present challenge is to reduce systematic effects, especially as greater distances …

Considerable progress has been made in determining the Hubble constant over the past
two decades. We discuss the cosmological context and importance of an accurate …

We present here the final results of the Hubble Space Telescope (HST) Key Project to
measure the Hubble constant. We summarize our method, the results, and the uncertainties …

ABSTRACT We use the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope
(HST) to determine the Hubble constant from optical and infrared observations of over 600 …

We have used a suite of simplified spectrophotometric spiral galaxy evolution models to
argue that there are substantial variations in stellar mass-to-light ratios (M/Ls) within and …

▪ Abstract The focus of this review is the work that has been done during the 1990s on using
Type Ia supernovae (SNe Ia) to measure the Hubble constant (H 0). SNe Ia are well suited …

We present a new semi-analytic model that self-consistently traces the growth of
supermassive black holes (BH) and their host galaxies within the context of the Lambda cold …

Attenuation of high-energy gamma-rays by pair production with ultraviolet, optical and
infrared (IR) extragalactic background light (EBL) photons provides a link between the …

We present a new calibration of the peak absolute magnitude of Type Ia supernovae (SNe
Ia) based on the surface brightness fluctuations (SBF) method, aimed at measuring the …

Since the launch of Hubble Space Telescope (HST) 9 yr ago, Cepheid distances to 25
galaxies have been determined for the purpose of calibrating secondary distance indicators …