278 citations · 379 across the 4 of their papers we have counts for
4 papers
Getting the Red Out: A Stellar Approach to Determining Spatial Variations of Interstellar Dust
I. I. Ivans, C. Sneden, R. P. Kraft +4
By employing two different spectroscopic techniques we have mapped out the variable ISM dust extinction endemic to globular cluster M4. We derive an average E(B-V) reddening of 0.3…
Star-to-Star Abundance Variations among Bright Giants in the Mildly Metal-Poor Globular Cluster M4
Inese I. Ivans, Christopher Sneden, Robert P. Kraft +5
We present a chemical composition analysis of 36 giants in the nearby mildy metal-poor (<[Fe/H]> = -1.18) "CN-bimodal" globular cluster M4. Confronted with a cluster that has large…
An Extremely Lithium-Rich Bright Red Giant in the Globular Cluster M3
Robert P. Kraft, Ruth C. Peterson, Puragra Guhathakurta +3
We have serendipitously discovered an extremely lithium-rich star on the red giant branch of the globular cluster M3 (NGC 5272). An echelle spectrum obtained with the Keck I HIRES…
Wide-Field CCD Photometry of the Globular Cluster M30
Eric L. Sandquist, Michael Bolte, G. E. Langer +2
We present new VI photometry for the halo globular cluster M30 (NGC 7099), and compute luminosity functions (LFs) in both bands for samples of about 15,000 hydrogen-burning stars f…