RSAA Colloquia / Seminars / Feast-of-Facts: Tuesday, 26 July 2016, 11:00-12:00; Duffield Lecture Theatre

Tracy Slatyer

"Galactic Puzzles in the Gamma-Ray Sky"

Studies of data from the Fermi Gamma-Ray Space Telescope have revealed new and striking features of the Milky Way, from the giant structures known as the Fermi Bubbles to a spherical glow of bright gamma-ray emission from around the Galactic Center. The latter has garnered great interest as a possible signal of annihilating dark matter, but new analyses suggest that it may instead be the first sign of an unexpected pulsar population with unusual properties. I will discuss the techniques used to unveil and study these signals, and what they may reveal about the deep history of our Galaxy.