70 citations · 465 across the 16 of their papers we have counts for
4 papers · 2 filters
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…
Super lithium-rich K giant with low to ratio
Y. T. Zhou, J. R. Shi, H. L. Yan +5
The lithium abundances in a few percent of giants exceed the value predicted by the standard stellar evolution models, and the mechanisms of Li enhancement are still under debate.…
Stellar activity with LAMOST - II. Chromospheric activity in open clusters
Xiang-Song Fang, Gang Zhao, Jing-Kun Zhao +1
We use the LAMOST spectra of member stars in Pleiades, M34, Praesepe, and Hyades to study how chromospheric activity vary as a function of mass and rotation at different age. We me…