1.7k citations · 10.7k across the 105 of their papers we have counts for
5 papers · 1 filter
The Age, Extinction and Distance of the Old, Metal-Rich Open Cluster NGC 6791
Brian Chaboyer, Elizabeth M. Green, James Liebert
An extensive grid of metal-rich isochrones utilizing the latest available input physics has been calculated for comparison with the old, metal-rich open cluster NGC 6791. The isoch…
BVRI Light Curves for 22 Type Ia Supernovae
Adam G. Riess, Robert P. Kirshner, Brian P. Schmidt +6
We present 1210 Johnson/Cousins B,V,R, and I photometric observations of 22 recent type Ia supernovae (SNe Ia): SN 1993ac, SN 1993ae, SN 1994M, SN 1994S, SN 1994T, SN 1994Q, SN 199…
Globular Cluster Distance Determinations
Brian Chaboyer
The present status of the distance scale to Galactic globular clusters is reviewed. Six distance determination techniques which are deemed to be most reliable are discussed in dept…
The Age of the Universe
Brian Chaboyer
A minimum age of the universe can be estimated directly by determining the age of the oldest objects in the our Galaxy. These objects are the metal-poor stars in the halo of the Mi…
Internal Rotation, Mixing and Lithium Abundances
Brian Chaboyer
Lithium is an excellent tracer of mixing in stars as it is destroyed (by nuclear reactions) at a temperature around K. The lithium destruction zone is typical…