468 citations · 2.2k across the 39 of their papers we have counts for
4 papers · 1 filter
The Carnegie Hubble Program: The Leavitt Law at 3.6 and 4.5 micron in the Milky Way
Andrew J. Monson, Wendy L. Freedman, Barry F. Madore +4
The Carnegie Hubble Program (CHP) is designed to calibrate the extragalactic distance scale using data from the post-cryogenic era of the Spitzer Space Telescope. The ultimate goal…
Carnegie Hubble Program: A Mid-Infrared Calibration of the Hubble Constant
Wendy L. Freedman, Barry F. Madore, Victoria Scowcroft +5
Using a mid-infrared calibration of the Cepheid distance scale based on recent observations at 3.6 um with the Spitzer Space Telescope, we have obtained a new, high-accuracy calibr…
Stellar Archaeology in the Galactic halo with Ultra-Faint Dwarfs: VII. Hercules
Ilaria Musella, Vincenzo Ripepi, Marcella Marconi +13
We present the first time-series study of the ultra-faint dwarf galaxy Hercules. Using a variety of telescope/instrument facilities we secured about 50 V and 80 B epochs. These dat…
The Hubble constant and new discoveries in cosmology
S. H. Suyu, T. Treu, R. D. Blandford +22
We report the outcome of a 3-day workshop on the Hubble constant (H_0) that took place during February 6-8 2012 at the Kavli Institute for Particle Astrophysics and Cosmology, on t…