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SUMMARY:TACOs\, thermally-assisted (magneto-)centrifugal outflows
DTSTART;VALUE=DATE-TIME:20200512T122000Z
DTEND;VALUE=DATE-TIME:20200512T124000Z
DTSTAMP;VALUE=DATE-TIME:20240704T115618Z
UID:indico-contribution-54@meetings.aip.de
DESCRIPTION:Speakers: Oliver Gressel (AIP)\nLaminar outflows driven by lar
 ge-scale magnetic fields likely play an important role in the evolution an
 d dispersal of protoplanetary disks\, and in setting the conditions for pl
 anet formation. Extending our previous non-ideal MHD model with radiative 
 transfer as well as a simplified thermochemistry\, we follow the dual aim 
 of studying the influence of thermal driving and\, at the same time\, layi
 ng the foundation for synthetic observations. Our simulations develop magn
 etocentrifugal outflows that are primarily driven by magnetic tension forc
 es. As a consequence\, the mass-loss rate in the wind only increases moder
 ately when including thermochemical effects. For typical field magnitudes\
 , magnetic dissipation heating remains sub-dominant compared with thermoch
 emical and irradiation heating. We\, moreover\, follow the evolution of th
 e entrained vertical magnetic flux and find it to diffuse out of the disk 
 on secular timescales as a result of non-ideal MHD. Based on line-radiativ
 e post processing\, we demonstrate that velocity spectra and moment 1 maps
  of O and CS (as well as other molecules) show significant\, potentially o
 bservable differences between models with and without outflows. In particu
 lar the shape of the line profiles\, and velocity asymmetries in the momen
 t 1 maps could enable the identification of outflows emanating from the su
 rface of a disk.\n\nhttps://meetings.aip.de/event/1/contributions/54/
LOCATION:Leibniz Institute for Astrophysics Potsdam (AIP) Lecture Hall
URL:https://meetings.aip.de/event/1/contributions/54/
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