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SUMMARY:Observational signatures of tightly-wound spirals driven by buoyan
 cy resonance
DTSTART;VALUE=DATE-TIME:20200513T113000Z
DTEND;VALUE=DATE-TIME:20200513T115000Z
DTSTAMP;VALUE=DATE-TIME:20240704T115619Z
UID:indico-contribution-25@meetings.aip.de
DESCRIPTION:Speakers: Jaehan Bae (Carnegie Institution of Washington)\nSpi
 ral waves are one of the most fundamental outcomes of planet-disk interact
 ion. In addition to the well-known Lindblad resonance\, buoyancy resonance
 \, which occurs when the vertical buoyancy frequency of disk gas matches w
 ith an integer multiple of the planet's orbital frequency\, can excite spi
 ral waves. Based on three-dimensional global hydrodynamic simulations and 
 synthetic ALMA line observations\, we will show that buoyancy spirals can 
 produce observable kinematic signatures. One of the main characteristics o
 f buoyancy spirals is their tightly-wound morphology (i.e.\, a small pitch
  angle compared with Lindblad spirals). The strength and observability of 
 buoyancy spirals depend sensitively on the disk thermodynamics. This highl
 ights the importance of using more realistic thermodynamics in hydrodynami
 c simulations.\n\nhttps://meetings.aip.de/event/1/contributions/25/
LOCATION:Leibniz Institute for Astrophysics Potsdam (AIP) Lecture Hall
URL:https://meetings.aip.de/event/1/contributions/25/
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