BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Current challenges and future opportunities from weak lensing: The
  S8 tension - Alexandra Amon (KICC)
DTSTART:20230227T130000Z
DTEND:20230227T140000Z
UID:TALK197650@talks.cam.ac.uk
CONTACT:Inigo Zubeldia
DESCRIPTION:Weak lensing surveys have consistently reported low values of 
 the clustering amplitude (S_8) compared to that predicted by Planck primar
 y Cosmic Microwave Background. I present the constraints from the Dark Ene
 rgy Survey (DES) cosmic shear analysis from >100 million galaxies spanning
  >4000 square degrees\, constituting the most powerful weak lensing datase
 t to date.  I’ll emphasise the robustness to the main systematics that w
 eak lensing analyses are susceptible to\, such as the redshift and shear c
 alibration\, as well as the modelling of astrophysical effects.  I will pr
 esent a potential solution to the S8 tension and the roadmap underway to t
 ackle this\, and exploit the full potential of upcoming experiments. 
LOCATION:CMS\, Pav. B\, CTC Common Room (B1.19) [Potter Room]
END:VEVENT
END:VCALENDAR