70 citations · 313 across the 9 of their papers we have counts for
13 papers · 1 filter
Unveiling the nature of barium stars. I. Asteroseismic masses and the evolutionary link between Ba dwarfs and giants
Lupamudra Sarmah, Yerra Bharat Kumar, Simon W. Campbell +2
Barium star systems are excellent sites for studying AGB nucleosynthesis, binary evolution, and mass transfer processes. However, an accurate estimation of their fundamental stella…
Asteroseismology of Carbon-Deficient Red Giants: Merger Products of Hierarchical Triple Systems?
Sunayana Maben, Simon W. Campbell, Timothy R. Bedding +4
Carbon-deficient giants (CDGs) are a rare and chemically peculiar class of stars whose origins remain under active investigation. We present an asteroseismic analysis of the entire…
Tracking the evolution of lithium in giants using asteroseismology: Super-Li-rich stars are almost exclusively young red-clump stars
Raghubar Singh, Bacham E. Reddy, Simon W. Campbell +2
We report novel observational evidence on the evolutionary status of lithium-rich giant stars by combining asteroseismic and lithium abundance data. Comparing observations and mode…
Discovery of ubiquitous lithium production in low-mass stars
Yerra Bharat Kumar, Bacham E. Reddy, Simon W. Campbell +3
The vast majority of stars with mass similar to the Sun are expected to only destroy lithium over the course of their lives, via low-temperature nuclear burning. This has now been…
Survey of Li-rich giants among Kepler and LAMOST fields: Determination of Li-rich giants Evolutionary Phase
Raghubar Singh, Bacham E. Reddy, Yerra Bharat Kumar +1
In this letter, we report the discovery of 24 new super Li-rich (A(Li) 3.2) giants of He-core burning phase at red clump region. Results are based on systematic search of a l…
Spectroscopic study of two new super Li rich red clump K giants
Raghubar Singh, Bacham E. Reddy, Yerra Bharat Kumar
In this paper, we report the discovery of two new super Li-rich K giants: HD~24960 and TYC~1751-1713-1. Based on high resolution () spectroscopy, we have derived L…