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DTSTART:20230101T000000
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DTSTART;TZID=UTC:20231207T160000
DTEND;TZID=UTC:20231207T170000
DTSTAMP:20260414T151534
CREATED:20231201T191816Z
LAST-MODIFIED:20231201T191816Z
UID:2442-1701964800-1701968400@rpm.physics.lbl.gov
SUMMARY:Speaker: Gerrit Farren (Cambridge) - Title: The Atacama Cosmology Telescope: Probing the large scale structure with ACT DR6 CMB lensing and cross-correlation with unWISE
DESCRIPTION:Research Progress Meeting \nDate: December 7\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Gerrit Farren (Cambridge) \nTitle: The Atacama Cosmology Telescope: Probing the large scale structure with ACT DR6 CMB lensing and cross-correlation with unWISE\n \nAbstract: I will present work on probing the large scale structure of the universe using CMB lensing from the upcoming Data Release 6 of the Atacama Cosmology Telescope (ACT) and cross-correlations with galaxies from the unWISE galaxy catalog. My talk will focus on how our highly competitive constraints from CMB lensing cross-correlations can provide insight into the widely discussed “S8/sigma8 tension”. For this purpose I will briefly introduce the high fidelity CMB lensing reconstruction obtained by the ACT Collaboration and results from the analysis of the lensing auto-correlation. I will discuss results from the cross-correlation between ACT CMB lensing and unWISE galaxies\, highlighting improvements to the analysis pipeline compared to previous work on the cross-correlation between Planck CMB lensing and unWISE by some of my collaborators (Krolewski et al. 2021). I will also touch on our recent work to extend such cross-correlation analyses beyond two-point correlations using the first detection of the galaxy-galaxy-CMB lensing bispectrum. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\n\nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-gerrit-farren-cambridge-title-the-atacama-cosmology-telescope-probing-the-large-scale-structure-with-act-dr6-cmb-lensing-and-cross-correlation-with-unwise/
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