Can Lithium content determine Blue Straggler evolution?
Date Submitted
2017-04-14 15:38:43
MassiveStars
Aditya Guha
University of Cambridge
Poster
We look at HARPS data for Lithium content and find that there exists a statistically significant anti-correlation between Lithium concentration and radial velocity variation large enough for stars to be possible binaries. This is exactly opposite to what is expected based on the location of stars sampled being above the Spite plateau. Other parameters like Temperature and Metallicity are ruled out through a similar analysis. A theoretical model is proposed accounting for this anomaly to explain if Blue Stragglers can cause stellar cannibalism.