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SUMMARY:A hydrodynamic study of the atmospheric escape of the hot Jupiter 
 WASP-121b
DTSTART;VALUE=DATE-TIME:20250402T060000Z
DTEND;VALUE=DATE-TIME:20250402T070000Z
DTSTAMP;VALUE=DATE-TIME:20260417T111300Z
UID:indico-event-4021@indico-tdli.sjtu.edu.cn
DESCRIPTION:Speakers: Chenliang Huang\n\nHost: Xianyu TanJoin Tencent Meet
 ing：https://meeting.tencent.com/dm/6THu9NKzn9HCMeeting ID: 484840821 (
 no password）Abstract:The escape of the atmosphere plays a crucial role i
 n planetary evolution. Recent advancements in high spectral resolution tra
 nsmission spectrum observation have provided an exceptional opportunity to
  investigate the structure of exoplanet upper atmospheres and their escape
  processes. In this talk\, I will introduce a sophisticated forward model 
 by expanding the capability of a one-dimensional model of the upper atmosp
 here and hydrodynamic escape\, to include important processes of atomic me
 tal species. Using this model\, we can interpret the detected atomic feat
 ures in the transmission spectrum of WASP-121b\, which originate from mate
 rial outside the planet's Roche lobe. By studying these atomic signatures\
 , we can explore the impact of metals and excited hydrogen on the upper at
 mosphere\, gain insights into the mechanisms of atmospheric escape\, and e
 mphasize the significance of the high mass-loss rate caused by Roche lobe 
 overflow.Biography:Dr. Chenliang Huang earned B.S. in Physics from Peking 
 University in 2011 and completed Ph.D. in Astronomy at the University of V
 irginia in 2017. Following his doctoral studies\, he served as a postdocto
 ral researcher at the University of Nevada\, Las Vegas from 2017 to 2019 a
 nd at the Lunar and Planetary Laboratory\, University of Arizona from 2019
  to 2022. Since 2023\, he has been an Associate Research Professor at the 
 Shanghai Astronomical Observatory. His research interests encompass the in
 vestigation of the upper atmospheres of gas giant exoplanets\, the interna
 l structure of terrestrial exoplanets\, and radiative transfer within inte
 racting supernova remnants.\n\nhttps://indico-tdli.sjtu.edu.cn/event/4021/
LOCATION:Tsung-Dao Lee Institute/N4F-N400 - meeting room (Tsung-Dao Lee In
 stitute)
URL:https://indico-tdli.sjtu.edu.cn/event/4021/
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