4–8 Aug 2014
Niels Bohr Institute
Europe/Copenhagen timezone

Signatures of accretion and MRI in protostellar disks

7 Aug 2014, 09:00
30m
Auditorium A (Niels Bohr Institute)

Auditorium A

Niels Bohr Institute

Blegdamsvej 17 Copenhagen
Workshop Main Programme Thursday Morning

Speaker

Prof. Jeremy Goodman (Princeton University)

Description

Accretion rates are usually diagnosed via boundary-layer emission. However, this does not directly reveal the stresses that transport angular momentum. If MRI is responsible, then it may be confined to active layers off the disk midplane at some radii. On the other hand, recent years have seen a growing body of observations of molecular emission lines from high altitudes in the disk, usually ascribed to radiative heating by stellar UV and X-rays. I will show that turbulent heating of active layers may also have observable consequences for the molecular lines, especially rovibrational CO transitions in the mid infrared from a few AU.

Primary author

Prof. Jeremy Goodman (Princeton University)

Co-authors

Mr Brandon Hensley (Princeton University) Mr Johannes Rothe (Princeton University)

Presentation materials