Date | Event Type | Speaker | |
04/01/2025 | Astro Seminar | Bart Ripperda [ + ] | |
04/01/2025 | Informal Astro Talk | Raagini Patki [ + ] | |
04/02/2025 | HEP Journal Club | [ + ] | |
04/02/2025 | HEP Seminar | Csaba Csaki [ + ] | |
04/03/2025 | Physics Dept Colloquium | Alessandra Buonanno [ + ] | |
04/04/2025 | Special Seminar | Dalimil Mazac [ + ] | |
04/04/2025 | Hep-Th Discussion Session | Calkins [ + ] | |
04/08/2025 | Astro Seminar | Magdalena Siwek [ + ] | |
04/09/2025 | HEP Journal Club | [ + ] | |
04/09/2025 | HEP Seminar | Lorenzo Ricci [ + ] | |
04/09/2025 | Cosmic Happy Hour | Cammie Norton [ + ] | |
04/10/2025 | Physics Dept Colloquium | Jesse Thaler [ + ] | |
04/11/2025 | Hep-Th Discussion Session | Calkins [ + ] | |
04/14/2025 | Special Seminar | Misha Shaposhnikov [ + ] | |
04/15/2025 | Astro Seminar | Julien Lavalle [ -- ] | |
Title: Early dressing of primordial black holes with cold dark matter particles Abstract: If primordial black holes make up a fraction of the cosmological dark matter, then they could efficiently capture other dark matter species soon after their collapse. Considering thermal relics as the main dark matter component, I will show that the subsequent building up of very compact dark matter spikes around black holes is a linear process in the radiation-domination epoch, which can be predicted almost fully analytically (a result first obtained by Eroshenko, which some colleagues and I have slightly corrected since then). This takes the form of scale invariant solutions describing compact dark matter halos with different profile indices, which depend not only on the black hole and particle masses, but also on the kinetic decoupling time of the latter. All this can further translate into mutual exclusion limits if dark matter particles can self-annihilate, which has important consequences if one of these dark matter candidates happens to be discovered in future observations. (2:00 PM - 3:15 PM, 726 Broadway, 940, CCPP Seminar) | |||
04/16/2025 | HEP Journal Club | [ + ] | |
04/16/2025 | HEP Seminar | Michael Baker [ + ] | |
04/18/2025 | Hep-Th Discussion Session | Calkins [ + ] | |
04/21/2025 | CCPP Brown Bag | Marius Kongsore [ + ] | |
04/21/2025 | Informal HEP Talk | Nat Levine [ + ] | |
04/22/2025 | Astro Seminar | Gabriela Sato-Polito [ + ] | |
04/23/2025 | HEP Journal Club | [ + ] | |
04/23/2025 | HEP Seminar | Giovanni Villadoro [ + ] | |
04/25/2025 | Informal HEP Talk | Weiguang Cao [ + ] | |
04/25/2025 | Hep-Th Discussion Session | Calkins [ + ] | |
04/28/2025 | CCPP Brown Bag | Marcus DuPont [ + ] | |
04/29/2025 | Astro Seminar | Risa Wechsler [ + ] | |
04/29/2025 | Oral Defense | Joan La Madrid [ + ] | |
04/30/2025 | Oral Defense | Calvin Chen [ + ] | |
04/30/2025 | HEP Seminar | Harikrishnan Ramani [ + ] | |
04/30/2025 | HEP Journal Club | [ + ] |