The Physics department colloquia are usually on Friday afternoons at 3:30 pm in Lapham Hall Room 160. Coffee and cookies are served at 3:15 pm in the same room. Anyone is welcome.<\/p>\n
The Cyclying of Baryons Between Stars and Circumgalactic Space<\/strong> Tremendous progress has been made over the last decade in our empirical and theoretical understanding of how galaxies form and evolve across cosmic time. In particular, state-of-the-art cosmological simulations can not only match the large-scale statistical properties of galaxies, but they can also successfully reproduce the observed small-scale features such as star and gas surface density profiles, and specific angular momentum.<\/p>\n This success shows that the basic theoretical framework for modeling galaxy formation is on the right track. However, there is a growing recognition that these models have fallen short in matching the empirical properties of diffuse gas, which constitutes 90% of all baryons in the universe, beyond visible galaxy disks and into circumgalactic space. An accurate understanding and characterization of the complex physical processes that govern the interactions between star-forming regions and this diffuse circumgalactic medium (CGM) is the next frontier in extragalactic research.<\/p>\n I will highlight some of the observational efforts of my group at the University of Chicago to identify the dominant mechanisms which define the CGM properties.<\/p>\n","protected":false},"excerpt":{"rendered":" The Physics department colloquia are usually on Friday afternoons at 3:30 pm in Lapham Hall Room 160. Coffee and cookies are served at 3:15 pm in the same room. Anyone is welcome. The Cyclying of Baryons Between Stars and Circumgalactic …<\/p>\n","protected":false},"author":63,"featured_media":0,"template":"","meta":{"_acf_changed":false,"_tribe_events_status":"","_tribe_events_status_reason":"","_tribe_events_is_hybrid":"","_tribe_events_is_virtual":"","_tribe_events_virtual_video_source":"","_tribe_events_virtual_embed_video":"","_tribe_events_virtual_linked_button_text":"","_tribe_events_virtual_linked_button":"","_tribe_events_virtual_show_embed_at":"","_tribe_events_virtual_show_embed_to":[],"_tribe_events_virtual_show_on_event":"","_tribe_events_virtual_show_on_views":"","_tribe_events_virtual_url":"","footnotes":"","uwm_wg_additional_authors":[]},"tags":[],"tribe_events_cat":[58],"class_list":["post-2893","tribe_events","type-tribe_events","status-publish","hentry","tribe_events_cat-physics-colloquia","cat_physics-colloquia"],"yoast_head":"\n
\nDr. Hsiao-Wen Chen<\/strong>, Dept. of Astronomy & Astrophysics, Kevli Institute for Cosmological Physics, The University of Chicago <\/p>\n