Welcome to the KICP seminars page! This seminar series is hosted by the Kavli Institute for Cosmological Physics at the University of Chicago. Our goal is to give early career scientists a venue to share their work and connect to the KICP and UChicago community. We invite speakers from all over who have interest in understanding the evolution of the Universe and it's laws. This includes topics in CMB, Dark Energy, Dark Matter, Astroparticle Physics, Structure Formation, and beyond.
Organizers:
Keisuke Inomata, KICP Fellow Bio | Contact
Burçin Mutlu-Pakdil, KICP & NSF Fellow Bio | Contact
Lucas Secco, KICP Fellow Bio | Contact
Michael Zevin, KICP & Hubble Fellow Bio | Contact
Alexander Ji, Faculty Advisor Bio | Contact
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Arianna Long (UC Irvine)
Title: Missing Giants: The First Massive Galaxies Are Dust-Obscured
Abstract: Half of all cosmic starlight is absorbed and reprocessed by dust, which means that the widely-accepted cosmic history generated by visible-light telescopes is incomplete. The consequences of our biases are apparent in our most modern cosmological simulations: they struggle to produce sufficient populations of massive galaxies to match observations of the first 2 Gyr of the Universe. These giants likely underwent rapid, violent, and bursty phases of star formation in order to reach such extreme masses, so early on. Such rapid stellar growth produces an overabundance of dust that obscures starlight, rendering the galaxies near-invisible at UV/optical wavelengths. In this work, I compile empirical data on massive, dusty, star-forming galaxies to create a numerical model that re-derives the primary function describing stellar mass assembly in the Universe: the stellar mass function (SMF). With my model, I extend the massive end of the SMF and show that, to first order, we can successfully reproduce the rapid build up of the massive quiescent galaxy population at z > 1 — aka the predicted descendants of dusty, star-forming galaxies. I detail the impact of this model on our understanding of massive galaxy formation and cosmic stellar mass assembly, and I briefly review how current and next-generation telescopes will play a key role in this endeavor.
Ken Ng (MIT)
Morgane Konig (MIT & Dartmouth College)
Alvine Kamaha (UCLA)
Carles Sanchez (Penn)
Maria Vincenzi (Duke)
Anna Ho (UC Berkeley), The Landscape of Relativistic Stellar Explosions
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Sophie Schroeder (Niels Bohr Institute), Open questions in formation of compact binary star systems
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Arianna Renzini (Caltech), Mapping gravitational-wave backgrounds: investigations in LIGO and prospects for LISA
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Presentation
Ben Thorne (UCSD), A Bayesian approach to CMB lensing reconstruction and galactic foreground removal
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Jose Luis Bernal (Johns Hopkins), The trouble with H0 (and beyond)
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Presentation
Katelin Schutz (MIT), Making dark matter out of light: the cosmology of sub-MeV freeze-in
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Podcast interview
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Joshua Speagle (University of Toronto), Cosmological cartography with photometric redshifts
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Podcast interview
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Mikhail Ivanov (NYU), Fundamental cosmology from galaxy clustering
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Podcast interview
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Vincent Vennin (APC, Paris University), Quantum diffusion during cosmic inflation
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Greg Mosby (NASA), Simplifying the analysis of galaxy star formation histories and near-infrared detectors
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Pranava Teja Surukuchi (Yale), Direct measurement of neutrino mass with the Project 8 Experiment
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Podcast interview
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Djuna Croon (TRIUMF), New physics and the black hole mass gap
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Podcast interview
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Anna-Christina Eilers (MIT), The formation and growth of supermassive black Holes
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Podcast interview
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Suhail Dhawan (Stockholm/KICC, Cambridge), Cosmology with Type Ia Supernovae: A view from the Zwicky Transient Facility
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Podcast interview
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Giuseppe Puglisi (UC Berkeley), Extending Galactic foreground models for CMB with adversarial networks
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Podcast interview
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Yun-Ting Cheng (Caltech), Cosmology and astrophysics with intensity mapping
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Podcast interview
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Christina Gao (Fermilab), Axion searches with two superconducting radio frequency cavities
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Podcast interview
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Weishuang (Linda) Xu (Harvard), Thermal dark sectors in the early and late Universe
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Podcast interview
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Brittany Kamai (UC Santa Cruz/Caltech), Envisioning and creating the future of gravitational-wave astrophysics
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Podcast interview
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Brandon Hensley (Princeton), New perspectives on polarized dust foregrounds for CMB science
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Podcast interview
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Nicholas Rodd (UC Berkeley), Evidence the 3.5 keV line is not from dark matter decay
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Podcast interview
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Austin Schneider (MIT), IceCube and the high-energy neutrino landscape
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Podcast interview
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Cynthia Chiang (McGill), Illuminating the dark universe with radio observations
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Podcast interview
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Igor Andreoni (Caltech), Results from triggered and un-triggered searches for counterparts to neutron star mergers
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