The Physics Colloquium has been arranged regularly since the fall semester of 2021. The detailed schedule and talk information of this semester are as follows.
For inquiries or suggestions of future speakers, please contact the colloquium working group (Prof. Jane Lixin Dai, Prof. Tran Trung Luu, Prof. Yanjun Tu, Prof. Chenjie Wang, and Prof. Shizhong Zhang).
From the Outskirt of the Brightest Galaxies to Mapping the Darkest Universe
Speaker: Prof. Song HUANG
Affiliation: Tsinghua University
Date: February 5, 2025 (Wednesday)
Time: 5:00 p.m.
Venue: MWT4, 1/F, Meng Wah Complex, Main Campus, HKU, The University of Hong Kong
Poster: Download
Abstract:
Modern imaging surveys such as Euclid, Vera Rubin’s LSST, and CSST will revolutionize our understanding of the Universe's bright and dark sides with deep imaging data and unprecedented weak gravitational lensing capabilities. In the last two decades, such a combination has demonstrated enormous potential to help us understand the physical connection between the galaxies and their dark matter halos. For example, I will introduce my research using data from the Subaru Telescope’s primary focus camera - HSC - to understand the assembly of the most massive galaxies in the Universe. We illustrate the intriguing connection between the extended, low-surface brightness stellar halo of low-redshift massive galaxies and the properties of their dark matter halos and will discuss its implication in cosmology. Meanwhile, a more precise picture of galaxy-halo connection and cosmology model heavily rely on our 3-D map of the Universe from large spectroscopic surveys. I will introduce the 6.5-m MUltiplexed Survey Telescope (MUST) - an ambitious Stage-V facility to conduct the next-generation cosmological redshift surveys to probe the high-redshift Universe and help us explore the primordial physics. I will briefly introduce the current engineering progress, the development of our international collaboration, the design of the instruments, and the preliminary cosmological forecast.
Key Reference:
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The Outer Stellar Mass of Massive Galaxies: A Simple Tracer of Halo Mass with Scatter Comparable to Richness and Reduced Projection Effects: https://arxiv.org/abs/2109.02646
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MUltiplexed Survey Telescope: Perspectives for Large-Scale Structure Cosmology in the Era of Stage-V Spectroscopic Survey: https://arxiv.org/abs/2411.07970
TBC
Speaker: TBC
Affiliation: TBC
Date: February 19, 2025 (Wednesday)
Time: 5:00 p.m.
Venue: MWT4, 1/F, Meng Wah Complex, Main Campus, HKU, The University of Hong Kong
Poster: TBC
Abstract: TBC
Key Reference: TBC
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Speaker: Prof. Dan KASEN
Affiliation: University of California, Berkeley
Date: March 5, 2025 (Wednesday)
Time: 5:00 p.m.
Venue: MWT4, 1/F, Meng Wah Complex, Main Campus, HKU, The University of Hong Kong
Poster: TBC
Abstract: TBC
Key Reference: TBC
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Speaker: TBC
Affiliation: TBC
Date: March 19, 2025 (Wednesday)
Time: 5:00 p.m.
Venue: MWT4, 1/F, Meng Wah Complex, Main Campus, HKU, The University of Hong Kong
Poster: TBC
Abstract: TBC
Key Reference: TBC
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Speaker: Prof. Shude MAO
Affiliation: Tsinghua University
Date: April 2, 2025 (Wednesday)
Time: 5:00 p.m.
Venue: MWT4, 1/F, Meng Wah Complex, Main Campus, HKU, The University of Hong Kong
Poster: TBC
Abstract: TBC
Key Reference: TBC
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Speaker: Prof. Ying LIU
Affiliation: The Pennsylvania State University
Date: April 16, 2025 (Wednesday)
Time: 5:00 p.m.
Venue: MWT4, 1/F, Meng Wah Complex, Main Campus, HKU, The University of Hong Kong
Poster: TBC
Abstract: TBC
Key Reference: TBC
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Speaker: Prof. Wenqing ZHANG
Affiliation: Southern University of Science and Technology
Date: April 30, 2025 (Wednesday)
Time: 5:00 p.m.
Venue: MWT4, 1/F, Meng Wah Complex, Main Campus, HKU, The University of Hong Kong
Poster: TBC
Abstract: TBC
Key Reference: TBC