PROBING CO FREEZE-OUT AND DESORPTION IN PROTOPLANETARY DISKS

Qi, Chunhua

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https://hdl.handle.net/2142/96984 Copy

Description

Title

PROBING CO FREEZE-OUT AND DESORPTION IN PROTOPLANETARY DISKS

Author(s)

Qi, Chunhua

Issue Date

6/21/2017

Keyword(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_

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

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http://hdl.handle.net/2142/96984

DOI

10.15278/isms.2017.WF01

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