Abstract Details

Name: raghubar singh
Affiliation: Indian Institute of Astrophysics
Conference ID: ASI2020_391
Title : Survey of Li-rich giants among Kepler and LAMOST fields
Authors and Co-Authors : Raghubar Singh B Eswar Reddy
Abstract Type : Poster
Abstract Category : Stars, ISM and Galaxy
Abstract : In this poster, we will present our recent large survey of Li-rich giants among red giants which are common in two major survey catalogs: Kepler time-resolved photometric survey and LAMOST low-resolution spectroscopic survey. One of the key obstacles for identifying the Li enhancement source on red giant branch is lack of precise determination of Li-rich giants' evolutionary phase. The unbiased and systematic survey resulted about two dozen super Li-rich giants. Significantly, as per the asteroseismic analysis of Kepler data, all of them are in the He-core burning phase, post-He-flash. Results provide first unambiguous evidence of Li-rich giants' evolutionary phase and provide important constraints for theoretical modeling.