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【直播】中国科大寰宇开物天文讲坛 | 厦门大学于浩然研究员:Galaxy spins from the...
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本系列报告由中国科学技术大学天文学系主办,于2021年3月16日16:00开始,授权蔻享学术进行网络直播。
主 题:Galaxy spins from the primordial perturbations
报告人:于浩然
单 位:厦门大学
时 间:2021年3月16日16:00
主办方:中国科学技术大学天文学系
报告摘要
I will discuss the galaxy angular momenta - their origin, observation, prediction, and they as a potential probe of the primordial Universe. In the current and upcoming galaxy surveys we have focused on galaxies’ positions and velocities. Galaxies also have rotations and we can use these informations to learn more about the Universe. In Lagrangian space the protohalo spins are well described by the tidal torque theory, and numerical simulations have given a general picture of spin conservation over galaxy formation. We have verified the correlation between observed galaxy spins and cosmic initial conditions (density mode reconstruction by ELUCID). We have also proposed the potential detection of neutrino mass, possible parity violation via galaxy spins in Lagrangian space.报告人简介
编辑:黄琦
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