133 citations · 720 across the 23 of their papers we have counts for
22 papers
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…
Asteroseismology sheds light on the origin of carbon-deficient red giants: likely merger products and linked to the Li-rich giants
Sunayana Maben, Simon W. Campbell, Yerra Bharat Kumar +2
Carbon-deficient red giants (CDGs) are a peculiar class of stars that have eluded explanation for decades. We aim to better characterise CDGs by using asteroseismology (Kepler, TES…
A large sample of newly-identified carbon-deficient red giants from APOGEE
Sunayana Maben, Yerra Bharat Kumar, Bacham E. Reddy +2
Based on the APOGEE survey we conducted a search for carbon-deficient red giants (CDGs). We found 103 new CDGs, increasing the number in the literature by more than a factor of 3.…
Discovery of 2716 hot emission-line stars from LAMOST DR5
Shridharan B, Blesson Mathew, Nidhi S +4
We present a catalog of 3339 hot emission-line stars (ELS) identified from 451,695 O, B, and A type spectra, provided by the LAMOST DR5 release. We developed an automated python ro…
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…