52 citations · 207 across the 9 of their papers we have counts for
8 papers
Li-enrichment in red clump giants: Clues for past binary interaction or merger events
Raghubar Singh, Bacham E. Reddy, Anohita Mallick +1
To understand the underlying mechanisms for high lithium abundances among core He-burning or red clump (RC) giants, we analyzed a sample of 5227 RC giants of mass M 2~M$_{\o…
Study of a red clump giant, KIC~11087027, with high rotation and strong infrared excess -- Evidence of tidal interaction for high lithium abundance
Raghubar Singh, Anohita Mallick, Bacham E. Reddy +2
This paper presents results from Kepler photometric light curves and high-resolution spectroscopic study of a super Li-rich giant KIC11087027. Using the light curve analysis, we me…
Lithium abundances in giants as a function of stellar mass: An evidence for He-flash as the source of Li enhancement in low mass giants
Anohita Mallick, Raghubar Singh, Bacham E. Reddy
In this work, we studied the distribution of lithium abundances in giants as a function of stellar mass. We used a sample of 1240 giants common among Kepler photometric and LAMOST…
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…
Concerning Li-rich status of KIC~9821622: A Kepler field RGB star reported as Li-rich Giant
Raghubar Singh, Bharat Kumar Yerra, Bacham E. Reddy +1
Given the implications for the origin of Li enhancement in red giants we have reviewed Li-rich classification of KIC~9821622, the only bonafide RGB giant with He inert-core till da…
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…
Two new Super Li-rich core He-burning giants: A new twist to the long tale of Li enhancement in K giants
Yerra Bharat Kumar, Raghubar Singh, B. Eswar Reddy +1
In this paper we report two new super Li-rich K giants: KIC 2305930 and KIC 12645107 with Li abundances exceeding that of ISM (A(Li) 3.2 dex). Importantly, both the giants h…