Online Seminar “Probing the very small scale dark matter distribution with gravitational waves”

Star-UBB Seminar Series:- Probing the very small scale dark matter distribution with gravitational waves

The spatial distribution of dark matter at small scale is a key for understanding the nature of dark matter, yet it is difficult to probe. The speaker argues that it would be possible to probe the very small scale dark matter distribution with gravitational waves, as wave optics effects caused by intervening dark matter distributions modify their amplitudes and phases. He will discuss the expected signals, including how those amplitude and phase fluctuations could be enhanced due to gravitational lensing magnifications.

時間:2024.02.08(四) 17:00~18:00
頻道:Zoom ID:853-7454-4159 ←
講者:Prof. Masamune Oguri 大栗 真宗 教授 (日本 千葉市 千葉大学 先進科学センター*)


*Center for Frontier Science, Chiba University, Chiba, Japan

Scientific and Technological Advanced Research- Babeș-Bolyai University(Star-UBB) Seminar Series in Gravitation, Cosmology and Astrophysics

Presently a period of rapid and intense change are being witnessed in our understanding of the gravitational force, at a rate that is quickly increasing since the important observational discoveries of the late 1990s. With the advent of new observational techniques, the emergence of important cosmological and astrophysical paradigms can be seen that lead to a deep change in our understanding of the Universe. Astronomical observations strongly suggest that at large scales the force of gravity may not behave according to standard general relativity, and that a generalization of the gravitational action, either at the geometric level, or at the matter level, may be required for a full understanding of the gravitational interaction.

The goal of the present seminar is to bring Theoretical Gravitational Physics closer to the observations and experiments, and to discuss current topics in general relativity, high-energy physics, astrophysics and cosmology.


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