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SUMMARY:Ring/gaps formation driven by MHD winds in protoplanetary discs
DTSTART;VALUE=DATE-TIME:20200515T070000Z
DTEND;VALUE=DATE-TIME:20200515T072000Z
DTSTAMP;VALUE=DATE-TIME:20240704T115620Z
UID:indico-contribution-23@meetings.aip.de
DESCRIPTION:Speakers: Antoine Riols (IPAG Grenoble)\nRings and gaps have b
 een observed in a wide range of proto-planetary discs\, from young systems
  like HLTau to older discs like TW Hydra. Recent disc simulations have sho
 wn that magnetohydrodynamic (MHD) turbulence (in both the ideal or non-ide
 al regime) can lead to the formation of rings and be an alternative to the
  embedded planets scenario. In this talk\, I will investigate the way in w
 hich these ring form in this context and seek a generic formation process\
 , taking into account the various dissipative regimes and magnetisations p
 robed by the past simulations. I will show that a linear instability\, dri
 ven by MHD winds\, might occur and spontaneously form these rings/gaps str
 uctures. Given its robustness\, the process identified could have importan
 t implications for a wide range of accreting systems threaded by large-sca
 le magnetic fields. To make connection with observations\, I will finally 
 analyze the dust distribution around rings/gaps structures and characteriz
 e its emission.\n\nhttps://meetings.aip.de/event/1/contributions/23/
LOCATION:Leibniz Institute for Astrophysics Potsdam (AIP) Lecture Hall
URL:https://meetings.aip.de/event/1/contributions/23/
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