278 citations · 568 across the 5 of their papers we have counts for
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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…
The Mildly Metal-Poor Globular Cluster M4: Star-to-Star Abundance Variations in 20 Giants
I. I. Ivans, C. Sneden, R. P. Kraft
We present a chemical composition analysis of a sample of 20 giant branch stars in the "CN-bimodal" globular cluster M4 observed using high resolution echelle spectrographs at Lick…