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Astronomy Calendar:

Spring 2021

Feb 1, 2021

The Colourful Past and Dark Side of Galaxies Unveiled Through Population-dynamics of Their Stars

11:30 am – 12:30 pm (CDT)

Speaker: Glenn van de Ven (University of Vienna)Host: Jonelle Walsh

Driven by gravity, galaxies continuously grow through accretion of smaller systems. Stellar streams are nice illustrations of this hierarchical build-up, but the accreted stars quickly disperse. I will present advanced dynamical models that can convert the observed positions and velocities of stars to phase-space quantities like energy and angular momen... read more  »

Feb 8, 2021

Dance of the Milky Way and the LMC

11:30 am – 12:30 pm (CDT)Streaming Live

Speaker: Denis Erkal (University of Surrey)Host: Jonelle Walsh

The LMC is the largest satellite of our Galaxy and has a total mass roughly 1/6th that of the Milky Way. In this talk, I will review the multiple lines of evidence for the LMC being so massive and then focus on the substantial effect it has on our Galaxy. In particular, I will discuss its effect on stellar streams, the stellar halo, and orbits of satel... read more  »

Apr 19, 2021


11:30 am – 12:30 pm (CDT)

Speaker: Decker French (University of Illinois at Urbana-Champaign)Host: Stephanie Ho

Apr 26, 2021


11:30 am – 12:30 pm (CDT)

Speaker: Véronique Buat (Aix-Marseille Université)Host: Jonelle Walsh