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SUMMARY:Cosmological studies with cosmic microwave background and radio ob
 servations
DTSTART;VALUE=DATE-TIME:20261107T090000Z
DTEND;VALUE=DATE-TIME:20261107T093000Z
DTSTAMP;VALUE=DATE-TIME:20261023T120340Z
UID:indico-contribution-2926@indico.itp.ac.cn
DESCRIPTION:Speakers: Chang Feng (University of Science and Technology of 
 China)\nObservations of the cosmic microwave background (CMB) and radio wa
 velengths can probe multiple evolutionary stages spanning the early to lat
 e Universe\, which feature large-scale structures and long-timescale proce
 sses. These observations are therefore of fundamental importance for inves
 tigating core physical problems concerning dark matter\, dark energy\, and
  gravitational waves. Future CMB polarization observations\, with unpreced
 ented sensitivity and resolution\, may detect more exotic early- and late-
 Universe polarization signals\, posing potential challenges to the standar
 d cosmological model. The CMB formed when photons decoupled from the photo
 n-baryon plasma during hydrogen recombination\, as free electrons were cap
 tured to form neutral atoms. Similarly\, the redshifted 21 cm line of neut
 ral hydrogen can also trace dark-matter-dominated large-scale structures a
 cross a wide range of redshifts and spatial scales. This talk will present
  the scientific objectives\, recent research progress\, and future plans f
 or cosmological studies centered on the cosmic microwave background (CMB) 
 and neutral hydrogen.\n\nhttps://indico.itp.ac.cn/event/417/contributions/
 2926/
LOCATION:
URL:https://indico.itp.ac.cn/event/417/contributions/2926/
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