70 citations · 243 across the 6 of their papers we have counts for
6 papers
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…
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…
Enormous Li-enhancement preceding red giant phases in low-mass stars in the Milky Way halo
Haining Li, Wako Aoki, Tadafumi Matsuno +4
Li abundances in the bulk of low-mass metal-poor stars are well reproduced by stellar evolution models adopting a constant initial abundance. However, a small number of stars have…
Three new barium dwarfs with WD companions: BD+68 1027, RE J0702+129 and BD+80 670
X. M. Kong, Y. Bharat Kumar, G. Zhao +6
We report three new barium (Ba) dwarfs lying in Sirius-like systems, which provides direct evidence that Ba dwarfs are companions to white dwarfs (WDs). Atmospheric parameters, ste…
The Nainital-Cape Survey-IV
Santosh Joshi, P. Martinez, Sowgata Chowdhury +6
The Nainital-Cape survey is a dedicated ongoing survey programme to search for and study pulsational variability in chemically peculiar (CP) stars to understand their internal stru…
Far-infrared study of K giants in the solar neighborhood: Connection between Li enrichment and mass-loss
Y. Bharat Kumar, B. E. Reddy, C. Muthumariappan +1
We searched for a correlation between the two anomalous properties of K giants: Li enhancement and IR excess from an unbiased survey of a large sample of RGB stars. A sample of 200…