BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//INPA - ECPv6.8.3//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:INPA
X-ORIGINAL-URL:https://inpa.lbl.gov
X-WR-CALDESC:Events for INPA
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/Los_Angeles
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20240310T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20241103T090000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20241206T120000
DTEND;TZID=America/Los_Angeles:20241206T130000
DTSTAMP:20260425T175230
CREATED:20241202T191754Z
LAST-MODIFIED:20241202T191805Z
UID:1882-1733486400-1733490000@inpa.lbl.gov
SUMMARY:INPA Seminar- Speaker:  Alina Sabyr (Columbia University)
DESCRIPTION:INPA Seminar Talk\nDate:  December 6\, 2024\nTime: 12:00 pm – 1:00 pm\n\n\nLocation: Sessler Conference Room – 50A-5132 [Hybrid and In-Person]\nSpeaker: Alina Sabyr (Columbia University)\nTitle: Future Cosmology with CMB Spectral Distortions and Secondaries\nAbstract: Spectral distortions–small deviations of the cosmic microwave background (CMB) energy spectrum from that of a perfect blackbody–probe the physical processes that occur in the primordial Universe (\mu-distortion) and at late times (y-distortion). In this talk\, I will present a new instrument concept\, SPECTER\, that we forecast to observe the \mu-distortion at high significance while marginalizing over astrophysical foregrounds. Within the standard cosmological model\, the \mu-distortion is sourced primarily by the energy injected via Silk damping and is thus sensitive to the primordial power spectrum at very small scales. Next\, I will present a new constraint on the y-distortion from the re-analysis of the COBE/FIRAS archival data. The known source of the y-distortion is the thermal Sunyaev-Zeldovich (tSZ) effect – inverse-Compton scattering of CMB photons off of energetic electrons primarily located in galaxy groups and clusters. Therefore\, y-distortion can give tight constraints on the mean ionized gas properties. Finally\, upcoming CMB anisotropy experiments will provide high-resolution and low-noise component-separated tSZ maps. I will discuss the cosmological constraining power of several tSZ higher-order statistics. Using a large suite of halo-model-based simulations\, we show that there is substantial non-Gaussian information in the tSZ maps that can be extracted in future analyses. \n\nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95016696011?pwd=Tk1XOW1Xd3RYRnlsc2tEYmRWZlVVZz09 \nMeeting ID: 950 1669 6011\n\nPasscode: 247722
URL:https://inpa.lbl.gov/event/inpa-seminar-speaker-alina-sabyr-columbia-university/
END:VEVENT
END:VCALENDAR