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SUMMARY:Waterfalls around Protostars - Joseph Mottram (Leiden Observatory)
DTSTART:20130514T153000Z
DTEND:20130514T163000Z
UID:TALK44789@talks.cam.ac.uk
CONTACT:David Titterington
DESCRIPTION:How material flows from molecular cores through disks to stars
  is still poorly constrained. While theories for how this infall should pr
 oceed have been around for some time\, observational evidence and analysis
  has been limited to slab models which can only give infall velocities on 
 characteristic scales. Water is uniquely sensitive to motion of any kind w
 ithin the protostellar environment due to its large Einstein A coefficient
 s. The combination of multiple water transitions observed as part of the `
 Water in star-forming regions with Herschel' (WISH) survey and full 1-D no
 n-LTE radiative transfer models of protostellar envelopes provides a new w
 ay to probe infalling envelope material. I will present modeling results o
 f seven Class 0/1 protostars which show signs of infall in their water lin
 es where we constrain the flow of material on core to envelope scales\, al
 ong with other highlights from the WISH survey.\n
LOCATION:Martin Ryle Seminar Room\, Kavli Institute
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