249 citations · 284 across the 4 of their papers we have counts for
4 papers
The Initial-Final Mass Relationship: Spectroscopy of White Dwarfs in NGC 2099 (M37)
Jasonjot Singh Kalirai, Harvey B. Richer, David Reitzel +5
We present new observations of very faint white dwarfs (WDs) in the rich open star cluster NGC 2099 (M37). Following deep, wide field imaging of the cluster using CFHT, we have now…
Concerning the White Dwarf Cooling Age of M4: A Response to the Paper by De Marchi et al. on "A Different Interpretation of Recent HST Observations"
H. B. Richer, J. Brewer, G. G. Fahlman +7
We respond to the paper by De Marchi, Paresce, Straniero and Moroni (2003) on the white dwarf cooling age of M4. The authors question the data analysis and interpretation that led…
The White Dwarf Cooling Sequence of the Globular Cluster Messier 4
Brad M. S. Hansen, James Brewer, Greg G. Fahlman +7
We present the white dwarf sequence of the globular cluster M4, based on a 123 orbit Hubble Space Telescope exposure, with limiting magnitude V = 30, I = 28. The white dwarf lumino…
Has Blending Compromised Cepheid-Based Determinations of the Extragalactic Distance Scale?
Brad K. Gibson, Philip R. Maloney, Shoko Sakai
We examine the suggestion that half of the HST Key Project- and Sandage/Saha-observed galaxies have had their distances systematically underestimated, by 0.1-0.3 mag in the distanc…