中科院数学与系统科学研究院
数学研究所
学术报告
数学物理研讨班
报告人：张林 博士 (重庆大学)
题 目：Precise late-time asymptotics for the scalar field in the interior of Kerr BH and SCC
时 间：2022年11月10日（周四）14 :00-15 :00
地 点：腾讯会议：365-862-416
摘 要：In this talk, I will introduce the precise late-time asymptotics for the scalar field in the interior of a non-static subextreme Kerr black hole, which provides a new proof of the generic $H^1_{loc}$-inextendibility of the Kerr Cauchy horizon against scalar perturbations. This is a joint work with Siyuan Ma.
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报告人：杨涛 博士 (首尔大学)
题 目：Eccentricity sheds light on gravitational-wave dark sirens in the mid-band
时 间：2022年11月18日（周五）14 :00-15 :00
地 点： 腾讯会议：272-163-764
摘 要： The source localization and distance inference of gravitational waves (GWs) are two crucial factors for GW standard sirens as precise probes of cosmology, astrophysics, and fundamental physics. In this talk, I will first introduce the concept of GW standard sirens and their limits as cosmological probes. Then I will introduce our recent work on the parameter estimation of GWs emitted by the eccentric compact binaries. We focus on the improvements of source localization and distance inference of dark sirens from eccentricity. Finally, the implications of eccentricity for dark sirens on cosmology will be discussed.
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