Physics Program Presents
Characterizing Nearby, Young Moving Groups
Friday, April 17, 2015
Hegeman 107
A lecture by Kyle McCarthy, University of Kentucky
Nearby, young moving groups are ideal testbeds for studying stellar and planetary evolution. By definition, stars in a given moving group should not have significantly different ages or compositions, therefore one can see how the cluster evolves as a function of mass. Currently, moving groups are largely characterized based on youth indicators (e.g. lithium absorption, X-ray emission) and space velocities. In this talk, I will discuss recent results which more fully characterize moving groups based on (1) Chemical homogeneity, (2) Origin, and (3) Isochronal Age. These traits have been tested on the well established AB Doradus moving group and show that these methods provide a detailed picture of the moving group as well as identify intruders. I will also discuss the future of this technique on low mass members using high resolution infrared spectroscopy.
For more information, call 845-758-7584, or e-mail [email protected].
Location: Hegeman 107