The Cosmic Imprint of Time: Decoding the Evolving Cosmos through Weak Gravitational Lensing
Event Start:
2026-02-27T14:00:00
Event End:
2026-02-27T16:00:00
Event Information:
Abstract:
A persistent discrepancy, known as the S_8 tension, challenges the modern cosmological paradigm: the large-scale structure clustering strength inferred from weak gravitational lensing consistently yields lower values than that derived from the cosmic microwave background.
This tension suggests potential limitations in our understanding of the structure formation, possibly arising from observational systematics, astrophysical processes, or new physics in the dark sector.
Event Location:
BUCH B312 (1866 Main Mall, UBC-V campus)
Speaker:
Shiming Gu, Departmental Defense
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Event Start:
2026-02-27T14:00:00
Event End:
2026-02-27T16:00:00
The Cosmic Imprint of Time: Decoding the Evolving Cosmos through Weak Gravitational Lensing
Event Information:
Abstract:
A persistent discrepancy, known as the S_8 tension, challenges the modern cosmological paradigm: the large-scale structure clustering strength inferred from weak gravitational lensing consistently yields lower values than that derived from the cosmic microwave background.
This tension suggests potential limitations in our understanding of the structure formation, possibly arising from observational systematics, astrophysical processes, or new physics in the dark sector.
Event Location:
BUCH B312 (1866 Main Mall, UBC-V campus)