896 citations · 8.7k across the 154 of their papers we have counts for
155 papers
The carbon star DY Persei may be a cool R Coronae Borealis variable
D. A. Garcia-Hernandez, N. Kameswara Rao, D. L. Lambert +3
Optical and near-IR photometry suggests that the carbon star DY Persei exhibits fadings similar to those of R Coronae Borealis (RCB) variables. Photometric surveys of the Galaxy an…
The Distribution of Metallicities in the Local Galactic Interstellar Medium
Adam M. Ritchey, Edward B. Jenkins, J. Michael Shull +3
In this investigation, we present an analysis of the metallicity distribution that pertains to neutral gas in the local Galactic interstellar medium (ISM). We derive relative ISM m…
Lithium in red giants: the roles of the He-core flash and the luminosity bump
Deepak, David L. Lambert
Lithium abundances for red giants in the GALAH DR3 survey are studied. The rare examples of Li-enriched stars with abundances A(Li) are confirmed to be He-core burning s…
Lithium abundances and asteroseismology of red giants: understanding the evolution of lithium in giants based on asteroseismic parameters
Deepak, David L. Lambert
In this study, we explore the evolution of lithium in giant stars based on data assembled from the literature on asteroseismology and Li abundances for giants. Our final sample of…
Detection of CH, CH and H molecules in the Young Planetary Nebula IC 4997
N. Kameswara Rao, David L. Lambert, Arumalla B. S. Reddy +3
We have detected CH and CH molecular absorption lines from the young compact planetary nebula IC 4997 from high resolution optical spectra. A high-resolution infra-red (H and…
Abundance analyses of Li-enriched and normal giants in the GALAH survey
Deepak, David L. Lambert, Bacham Eswar Reddy
Compositions of lithium-enriched and normal giants among the GALAH survey are compared. Except for Li, the only detectable abundance difference between lithium-enriched and normal…