Events List

DateEvent TypeSpeaker
04/01/2025Astro SeminarBart Ripperda [ + ]
04/01/2025Informal Astro TalkRaagini Patki [ -- ]

Title: A Novel Bispectrum extracting the Kinematic SZ effect as a Cosmological Probe
Abstract: Over the past decade, the kinematic Sunyaev-Zel'dovich (kSZ) effect has emerged as a unique observational probe of the distribution of baryons and velocity fields in the Universe. In this 30-minute talk, I will briefly review the kSZ effect and present our recent work (arXiv:2411.11974), proposing a novel 'bispectrum' of the form temperature-temperature-density to extract it from cleaned CMB maps. This estimator can utilize any tracer of the large-scale structure density field projected along the line-of-sight and does not require individual redshifts. With this new method, we forecast high signal-to-noise ratios (SNR) of ∼100 for the upcoming Simons Observatory (SO) and CMB-S4 correlated with a galaxy sample from WISE that is restricted to the linear regime. We show the SNR peaks for squeezed triangles with a short (linear) density mode and long temperature modes in harmonic space. We study the cosmological dependence of this kSZ signal and forecast initial constraints on the sum of neutrino masses for SO and CMB-S4. Finally, I will discuss the advantages of this estimator and its prospects as a novel probe of baryonic abundance and beyond-ΛCDM cosmology with upcoming precision measurements. (2:00 PM - 2:30 PM, 726 Broadway, 940, CCPP Seminar)
04/02/2025HEP Journal Club [ + ]
04/02/2025HEP SeminarCsaba Csaki [ + ]
04/03/2025Physics Dept ColloquiumAlessandra Buonanno [ + ]
04/04/2025Special SeminarDalimil Mazac [ + ]
04/04/2025Hep-Th Discussion SessionCalkins [ + ]
04/08/2025Astro SeminarMagdalena Siwek [ + ]
04/09/2025HEP Journal Club [ + ]
04/09/2025HEP SeminarLorenzo Ricci [ + ]
04/09/2025Cosmic Happy HourCammie Norton [ + ]
04/10/2025Physics Dept ColloquiumJesse Thaler [ + ]
04/11/2025Hep-Th Discussion SessionCalkins [ + ]
04/14/2025Special SeminarMisha Shaposhnikov [ + ]
04/15/2025Astro SeminarJulien Lavalle [ + ]
04/16/2025HEP Journal Club [ + ]
04/16/2025HEP SeminarMichael Baker [ + ]
04/18/2025Hep-Th Discussion SessionCalkins [ + ]
04/21/2025CCPP Brown BagMarius Kongsore [ + ]
04/21/2025Informal HEP TalkNat Levine [ + ]
04/22/2025Astro SeminarGabriela Sato-Polito [ + ]
04/23/2025HEP Journal Club [ + ]
04/23/2025HEP SeminarGiovanni Villadoro [ + ]
04/25/2025Informal HEP TalkWeiguang Cao [ + ]
04/25/2025Hep-Th Discussion SessionCalkins [ + ]
04/28/2025CCPP Brown BagMarcus DuPont [ + ]
04/29/2025Astro SeminarRisa Wechsler [ + ]
04/29/2025Oral DefenseJoan La Madrid [ + ]
04/30/2025Oral DefenseCalvin Chen [ + ]
04/30/2025HEP SeminarHarikrishnan Ramani [ + ]
04/30/2025HEP Journal Club [ + ]