报告人：Veronica Vazquez Aceves博士（北京大学）

题 目：SgrA* spin and mass estimates through the detection of an extremely large mass-ratio inspiral

时 间：2024年1月23日（周二）下午16:30

地 点：理工楼1226

腾讯ID：125 593 708

邀请人：张玉鹏

报告摘要:

Extremely large mass-ratio inspirals (XMRIs) are formed by a brown dwarf inspiraling towards a supermassive black hole. These systems are among the most promising sources of gravitational waves that will be detected by the future space-based detectors, such as the Laser Interferometer Space Antenna (LISA), TianQin or Taiji. Understading their formation channels and their orbital properties is key in determining their event rates and to the development of accurate templates for their detection. In this talk I introduce the physical processes that lead to the formation of XMRIs and how to estimate their event rates. 

I'll apply this description to derive the number of XMRIs we can expect to detect in our Galactic Center and show that by detecting a single XMRI we can measure the mass and the spin of SgrA*, the supermassive black hole at the centre of our Galaxy, with an extremely high accuracy.

报告人简介:

Veronica Vazquez Aceves, born in Mexico, obtained a bachelors degree in Physics at the National Autonomous University of Mexico and a Master of Science degree at the Astronomy Institute, also at the National Autonomous University of Mexico. In 2018 she moved to Beijing to start her Ph.D at the Institute of Applied Mathematics of the Chinese Academy of Sciences and in July 2023 started a postdoc position at the Kavli Institute for Astronomy and Astrophysics at Peking University. She is interested in gravitational waves sources for the future space-based gravitational wave detectors, specially in inspiraling systems of compact objects, the dynamical processes that lead to their formation and the environmental aspects that can affect their formation and their gravitational wave emission.