202 citations · 1.7k across the 41 of their papers we have counts for
3 papers · 1 filter
Interstellar Absorption Lines in the Direction of the Cataclysmic Variable SS Cygni
Adam M. Ritchey, George Wallerstein, Jean McKeever
We present an analysis of interstellar absorption lines in high-resolution optical echelle spectra of SS Cyg obtained during an outburst in 2013 June and in archival Hubble Space T…
Abundances in Stars with Debris Disks
Adam M. Ritchey, Guillermo Gonzalez, Myra Stone +1
We present preliminary results of a detailed chemical abundance analysis for a sample of solar-type stars known to exhibit excess infrared emission associated with dusty debris dis…
Chemistry of the Sagittarius Dwarf Galaxy: a Top-Light IMF, Outflows and the R-Process
Andrew McWilliam, George Wallerstein, Marta Mottini
From chemical abundance analysis of stars in the Sagittarius dwarf spheroidal galaxy (Sgr), we conclude that the alpha-element deficiencies cannot be due to the Type Ia supernova (…