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Events on Thursday, March 25th, 2021

Cosmology Journal Club
Time: 12:00 pm
Place:
Abstract: Each week, we start with a couple scheduled 15-20 minute talks about one's research, or an arXiv paper. The last part will typically be open to the group for anyone to discuss an arXiv paper.

All are welcome and all fields of cosmology are appropriate.

Contact Ross Cawthon, cawthon@wisc, for more information.

Zoom info
Meeting ID: 93592708053, passcode: cmbadger

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Astronomy Colloquium
Galaxy Evolution from Large Surveys of Nearby Resolved Galaxies
Time: 3:30 pm
Place: Zoom meeting(see Abstract ) Coffee and tea 3:30 pm, Talk 3:45 pm
Speaker: Karen Masters, Haverford College
Abstract: The morphology of a galaxy provides information on the orbits of stars within it. As such, important clues to the formation history of galaxies are revealed by their morphologies, and this information is complimentary, but not identical to, their star formation history and chemical composition as revealed by photometry and spectra.The Galaxy Zoo project (www.galaxyzoo.org) has provided quantitative visual morphologies for over a million galaxies (including the entire Sloan Digital Sky Surveys, or SDSS Main Galaxy Sample), and has been part of a reinvigoration of interest in the morphologies of galaxies and what they reveal about the evolution of galaxies. Mapping Nearby Galaxies at Apache Point Observatory (MaNGA, part of SDSS-IV), has now completed its goal to obtain spatially resolved spectral maps for 10,010 nearby galaxies (all of which have Galaxy Zoo morphologies). This is by far the largest sample of resolved spectroscopy in the world. In this talk I will review these projects, and show results from them which demonstrate why a resolved view of the internal morphology in large samples of galaxies is interesting and how it provides a unique constraint of our understanding of galaxy evolution.
Host: Professor Eric Wilcots
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