January 19, 2023
3:00PM - 4:00PM
In Person & Online: Chem & Biomolecular Eng & Chem (CBEC) - Room 130; Zoom Webinar
Add to Calendar
2023-01-19 16:00:00
2023-01-19 17:00:00
Astronomy Colloquium - John Forbes
Title: Towards a Theory of Galaxy Formation in the Era of Good-Looking Simulations
Abstract:
In the past decade cosmological hydrodynamic simulations have produced large populations of galaxies that look a great deal like galaxies in the real Universe. I will argue that, despite their successes and versatility, these simulations are unlikely to ever reliably constrain key ingredients of galaxy formation like the properties of galactic winds and accretion. Fast, expressive, comprehensive new models are necessary to fit current and forthcoming observational data. I will show promising steps along three distinct paths towards building such models: incorporating lessons from simulations, building and perturbing equilibrium models, and fitting the data hierarchically.
Speaker: John Forbes (Simons Foundation)
In Person & Online: Chem & Biomolecular Eng & Chem (CBEC) - Room 130; Zoom Webinar
OSU ASC Drupal 8
ascwebservices@osu.edu
America/New_York
public
Date Range
Add to Calendar
2023-01-19 15:00:00
2023-01-19 16:00:00
Astronomy Colloquium - John Forbes
Title: Towards a Theory of Galaxy Formation in the Era of Good-Looking Simulations
Abstract:
In the past decade cosmological hydrodynamic simulations have produced large populations of galaxies that look a great deal like galaxies in the real Universe. I will argue that, despite their successes and versatility, these simulations are unlikely to ever reliably constrain key ingredients of galaxy formation like the properties of galactic winds and accretion. Fast, expressive, comprehensive new models are necessary to fit current and forthcoming observational data. I will show promising steps along three distinct paths towards building such models: incorporating lessons from simulations, building and perturbing equilibrium models, and fitting the data hierarchically.
Speaker: John Forbes (Simons Foundation)
In Person & Online: Chem & Biomolecular Eng & Chem (CBEC) - Room 130; Zoom Webinar
Department of Astronomy
astronomy@osu.edu
America/New_York
public
Title: Towards a Theory of Galaxy Formation in the Era of Good-Looking Simulations
Abstract:
In the past decade cosmological hydrodynamic simulations have produced large populations of galaxies that look a great deal like galaxies in the real Universe. I will argue that, despite their successes and versatility, these simulations are unlikely to ever reliably constrain key ingredients of galaxy formation like the properties of galactic winds and accretion. Fast, expressive, comprehensive new models are necessary to fit current and forthcoming observational data. I will show promising steps along three distinct paths towards building such models: incorporating lessons from simulations, building and perturbing equilibrium models, and fitting the data hierarchically.
