January 11, 2016 at 9:30 pm

Astrophysics Seminar | Galactic Archeology, Jan. 11

Keith Hawkins by Rob Hardin

Keith Hawkins by Rob Hardin

The Astrophysical Institute (ApI) presents Ohio University Alumnus and Marshall Scholar, Keith Hawkins of  the Cambridge University presenting “Galactic Archeology: Piecing together the Milky Way with Large Surveys” on Monday, Jan. 11, at at 4:10 p.m. in Walter Hall 245.

Abstract: We live in a typical spiral galaxy in the Universe, but what makes the Milky Way special is that only in our Galaxy can we probe the chemical, kinematic and spatial distributions of individual stars with high accuracy. Different patterns in these distributions are used to define different stellar populations. Galactic Archaeology is a field focused on studying these distributions in detail and providing crucial pieces of the puzzle to understand how galaxies form and evolve. In this talk, I will discuss recent results (with an emphasis on my PhD work) focusing on the age of the accreted stellar halo component, the interface of the various Galactic components, and chemical abundance patterns in the Galaxy using large spectroscopic surveys such as APOGEE, SEGUE, and, Gaia-ESO to build a better understanding of the formation and assembly of our own Galaxy.

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