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Galaxies SIG Seminar September 18, 2024

17 September 2024

Galaxies SIG about Galaxies SIG Seminar September 18, 2024

September 18th 2024, 11:00 am – 12:00 noon ET

Galactic Paleontology in the Era of HWO

Speaker

Mia Bovill (University of Maryland)

Abstract

Upcoming telescopes, including HWO, will revolutionize our understanding of near field cosmology with unprecedented observations of dwarf galaxies into the Local Volume. However, we do not have a sufficient theoretical understanding of the scatter inherent in dwarf satellite populations. I will present results of the modeling of dwarf galaxies with the Semi-Analytic Model Galacticus in an effort to provide some of the first quantification of the variations in dwarf populations around their hosts.

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An illustration of Sun-like star HD 181327 and its surrounding debris disk. The star is at top right. It is surrounded by a far larger debris disk that forms an incomplete ellpitical path and is cut off at right. There’s a huge cavity between the star and the disk. The debris disk is shown in shades of light gray. Toward the top and left, there are finer, more discrete points in a range of sizes. The disk appears hazier and smokier at the bottom. The star is bright white at center, with a hazy blue region around it. The background of space is black. The label Artist's Concept appears at lower left.