Events List – The Center for Cosmology and Particle Physics

Date	Event Type	Speaker
12/01/2023	ArXiv Discussion	Popov [ + ]
12/01/2023	Informal Astro Talk	James Sullivan [ + ]
12/04/2023	CCPP Brown Bag	David Hogg [ + ]
12/04/2023	HEP Discussion Sessions	Zare [ + ]
12/04/2023	Informal Astro Talk	Jonathan Morag [ -- ]
	Title: Analytic Model of Shock Cooling Emission Fitting In Core-collapse SNe Abstract: We model shock-cooling emission in the first hours and days of core-collapse supernovae (SNe). A decade of fitting the observed emission to analytic models has shed light on the properties of the progenitor star, but despite its potential, fitting has also led to some inconsistent results, at times in disagreement with other measurement methods. We provide a frequency-dependent analytic formula for the spectral energy distribution (SED), derived from first principles, and carefully calibrated to multigroup numerical simulations with realistic opacity. We choose a simplified system with few free parameters. We span a large parameter space and show insensitivity to deviations from idealized ‘polytropic’ stellar structure. Recently in a systematic analysis of dozens of SNe, our model was used to show that ~70% of type II SNe are well described by simple shock-cooling, with progenitor radii consistent with observed RSG’s in the field. Apart from being a new scientific claim about the state of the progenitors, this result provides confidence in early-time emission fitting and in our method. (2:00 PM - 2:45 PM, 726 Broadway, 940, CCPP Seminar)
12/05/2023	Astro Seminar	Luca Comisso [ + ]
12/06/2023	HEP Seminar	Carlos Wagner [ + ]
12/06/2023	CCPP Pheno Journal Club	[ + ]
12/07/2023	Physics Dept Colloquium	William Jacobs [ + ]
12/08/2023	ArXiv Discussion	Popov [ + ]
12/11/2023	HEP Discussion Sessions	Zare [ + ]
12/13/2023	HEP Seminar	LianTao Wang [ + ]
12/14/2023	Physics Dept Colloquium	Jo Dunkley [ + ]
12/15/2023	ArXiv Discussion	Popov [ + ]
12/15/2023	Informal HEP Talk	Raphael Bousso [ + ]
12/15/2023	NYU Physics Holiday Party	[ + ]
12/18/2023	HEP Discussion Sessions	Zare [ + ]
12/25/2023	Holiday	[ + ]
12/26/2023	Holiday	[ + ]
12/27/2023	Holiday	[ + ]
12/28/2023	Holiday	[ + ]
12/29/2023	Holiday	[ + ]