363 citations · 2.4k across the 46 of their papers we have counts for
20 papers · 1 filter
Deep Mixing and Metallicity: Carbon Depletion in Globular Cluster Giants
Sarah L. Martell, Graeme H. Smith, Michael M. Briley
We present the results of an observational study of the efficiency of deep mixing in globular cluster red giants as a function of stellar metallicity. We determine [C/Fe] abundance…
On The Origin of the Blue Tilt in Extragalactic Globular Cluster Systems
Jay Strader, Graeme Smith
Some early-type galaxies show a correlation between color and integrated magnitude among the brighter metal-poor globular clusters (GCs). This phenomenon, known as the blue tilt, i…
An Improved Bandstrength Index for the CH G Band of Globular Cluster Giants
Sarah L. Martell, Graeme H. Smith, Michael M. Briley
Spectral indices are useful tools for quantifying the strengths of features in moderate-resolution spectra and relating them to intrinsic stellar parameters. This paper focuses on…
CN Bimodality at Low Metallicity: The Globular Cluster M53
Sarah L. Martell, Graeme H. Smith, Michael M. Briley
We present low resolution UV-blue spectroscopic observations of red giant stars in the globular cluster M53 ([Fe/H]=-1.84), obtained to study primordial abundance variations and de…
The Unusual Spectrum of Comet 96P/Machholz
Laura E. Langland-Shula, Graeme H. Smith
We report spectra from 3000-5900 A for comet 96P/Machholz, obtained on 2007 Apr 27 UT with the 3-m Shane telescope at Lick Observatory. The spectra are extremely carbon poor, and s…
Integrated Colours of Milky Way Globular Clusters and Horizontal Branch Morphology
Graeme H. Smith, Jay Strader
Broadband colours are often used as metallicity proxies in the study of extragalactic globular clusters. A common concern is the effect of variations in horizontal branch (HB) morp…