Cosmic Origins
Searching for answers about our universe and its origins

Galaxies Science Interest Group
(Galaxies SIG)

Galaxies SIG Events

Cosmological Hyper-Refinement Simulations to Leverage Future Great Observatories

3 April 2024, 1:00pm ET
Daniel Anglés-Alcázar

The Habitable Worlds Observatory and other Future Great Observatories will provide an unprecedented window into the physical mechanisms driving active galactic nuclei (AGN) fueling and feedback, which play a key role in galaxy evolution but are still poorly understood. Leveraging these future observatories requires detailed, physically predictive models of galaxy evolution but, despite much recent progress, cosmological galaxy formation simulations have been limited by resolution, interstellar medium physics, and uncertain sub-grid treatment of black holes. In this talk, I will present a new class of cosmological hyper-refinement simulations that for the first time explicitly resolve AGN fueling and feedback at sub-pc resolution in a full cosmological setting while modeling a realistic multi-phase interstellar medium including gas consumption by star formation, local feedback from supernovae, stellar winds, and radiation, and gravitational torques from multi-scale stellar non-axisymmetries. I will highlight some of the lessons learned from these multi-scale simulations, with important implications for the nature of luminous quasars, the star formation-AGN connection, black hole-galaxy scaling relations, and galaxy quenching, and I will present a new pipeline to produce mock emission line data cubes with unprecedented information content to make detailed comparisons between theoretical models and future observational constraints of AGN fueling and feedback.

Session Video

10 May 2024
JWST Senior Project Scientist Awarded Presidential Medal of Freedom
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AGN SIG – X-ray and Far IR Probe Panel Discussion | Tuesday, May 14th , 12:00pm ET
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Call for Community Input into the TESS Extended Mission Planning
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Astrophysics Technology Gaps Public Webinar | May 14th, 2024 2:00 – 3:00pm ET
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Diffuse Gas in Cosmic Ecosystems Science Interest Group (DGCE SIG) | May 23rd , 2024 – 4:00pm ET / 1:00pm PT
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