Date | Event Type | Speaker | |
04/02/2024 | Astro Seminar | Thales Gutcke [ + ] | |
04/02/2024 | Grad Pheno Journal Club | [ + ] | |
04/03/2024 | ArXiv Discussion | HEP/Pheno Journal Club [ + ] | |
04/03/2024 | HEP Seminar | Taewook Youn [ + ] | |
04/04/2024 | Physics Dept Colloquium | Itai Cohen [ + ] | |
04/05/2024 | HEP Discussion Sessions | Zare [ + ] | |
04/09/2024 | Astro Seminar | Matthew McQuinn [ -- ] | |
Title: A new concept to measure geometrically the expansion of the universe Abstract: With several small radio dishes in the outer solar system, it appears possible to measure the distances to fast radio bursts that originate hundreds of megaparsecs away and thereby measure the cosmic expansion history using a geometric method that is similar to the trilaterations of global satellite navigation systems (https://arxiv.org/abs/2210.07159). The sensitivity scales quadratically with dish separations such that distance measurements to bursts even on the other side of the observable universe may be possible. Not only could this technique potentially provide a much more precise geometric constraint on the cosmic expansion history, but such a mission could also provide interesting constraints on micro-Hertz gravitational waves, pulsars, the outer solar system, and the dark matter. While this idea is ambitious, and there is certainly an argument that we do not need to measure the expansion better than we already have (which I will address), another reason to attend this talk is that this concept involves so much interesting physics related to GPS systems, very long baseline interferometry, plasma propagation effects, gravitational time delays, and the diffuse outer solar system. (2:00 PM - 3:00 PM, 726 Broadway, 940, CCPP Seminar) | |||
04/10/2024 | Special Seminar | Or Graur [ + ] | |
04/10/2024 | HEP Seminar | Clifford Cheung [ + ] | |
04/11/2024 | Physics Dept Colloquium | Karen Kasza [ + ] | |
04/12/2024 | HEP Discussion Sessions | Zare [ + ] | |
04/16/2024 | Grad Pheno Journal Club | [ + ] | |
04/17/2024 | ArXiv Discussion | HEP/Pheno Journal Club [ + ] | |
04/17/2024 | HEP Seminar | Deog Ki Hong [ + ] | |
04/17/2024 | Cosmic Happy Hour | Tony Zhou [ + ] | |
04/18/2024 | Informal HEP Talk | Thomas Faulkner [ + ] | |
04/18/2024 | Physics Dept Colloquium | John Eiler [ + ] | |
04/19/2024 | Informal HEP Talk | Edward Mazenc [ + ] | |
04/19/2024 | Special Seminar | John Eiler [ + ] | |
04/19/2024 | HEP Discussion Sessions | Zare [ + ] | |
04/22/2024 | CCPP Brown Bag | David Hogg [ + ] | |
04/23/2024 | Astro Seminar | Nikhil Padmanabhan [ + ] | |
04/23/2024 | Grad Pheno Journal Club | [ + ] | |
04/24/2024 | HEP Seminar | T Daniel Brennan [ + ] | |
04/25/2024 | Oral Defense | Nicholas Faucher [ + ] | |
04/25/2024 | Physics Dept Colloquium | David Awschalom [ + ] | |
04/26/2024 | HEP Discussion Sessions | Zare [ + ] | |
04/29/2024 | CCPP Brown Bag | Giovanni Verza [ + ] | |
04/29/2024 | Informal HEP Talk | Trakshu Sharma [ + ] | |
04/30/2024 | Astro Seminar | Anna Suliga [ + ] | |
04/30/2024 | Grad Pheno Journal Club | [ + ] |