mountain profile Institute for Astronomy University of Hawaii

Disk gas surface density profiles


A Library of Model Spectral Line Images


Basic idea is to compare an observed integrated line map (so far only 13CO (3-2) to a library of model images, convolved to the same ALMA beam and plot which parameters fit the data.


Eample set of images for Rc = 100 AU is shown at the left, for a 0.03'' beam. (Fixed inclination, vary gamma and temperature parameters.)


This method was successfully used to model the ALMA SV data of the HD163296 disk and published as Williams & McPartland 2016, ApJ.

Same models, but convolved to a 0.2'' beam