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Title:PROBING CO FREEZE-OUT AND DESORPTION IN PROTOPLANETARY DISKS
Author(s):Qi, Chunhua
Subject(s):Mini-symposium: ALMA's Molecular View
Abstract:Snow lines, the boundaries where the most abundant volatiles such as_x000d_ H$_2$O, CO$_2$ and CO freeze out from the gas phase onto dust grains _x000d_ in the midplane of protoplanetary disks, are believed to play an_x000d_ important role in planet formation and composition. Locating the CO_x000d_ snow line is challenging in disks. This has prompted an exploration of chemical signatures of CO freeze-out and desorption. We present ALMA_x000d_ observations of the CO, N$_2$H$^+$ and DCO$^+$ emission to _x000d_ probe the CO freeze-out and desorption in protoplanetary disks, and_x000d_ evaluate their utility as tracers of the CO snow line location._x000d_
Issue Date:6/21/2017
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:APS
Genre:CONFERENCE PAPER/PRESENTATION
Type:Text
Language:English
URI:http://hdl.handle.net/2142/96984
DOI:10.15278/isms.2017.WF01
Date Available in IDEALS:2017-07-27


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