Time-sensitive chemical tracers within shocked astrophysical sources

Burkhardt, Andrew M.

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https://hdl.handle.net/2142/96951 Copy

Description

Title

Time-sensitive chemical tracers within shocked astrophysical sources

Author(s)

Burkhardt, Andrew M.

Contributor(s)

• Herbst, Eric
• Remijan, Anthony
• McGuire, Brett A.
• Le Gal, Romane
• Shingledecker, Christopher N.

Issue Date

2017-06-20

Keyword(s)

Atacama Large Millimeter/submillimeter Array (ALMA)'s molecular view

Abstract

In regions of star formation, astrophysical shocks have been found to be both common and influential on the molecular make-up of the surrounding material. The formation of complex organic molecules (COMs) in the interstellar medium relies on interplay between gas-phase and grain-surface physical and chemical processes, including shock-induced non-thermal desorption of COMs formed on the grain. We will utilize the gas-grain chemical network model textsc{nautilus}, coupled with the inclusion of a high-temperature network and a parametric shock model, with the inclusion of collisional dust heating and sputtering processes from gas-phase particles, in order to study the effects shocks have on the chemical complexity of a prototypical shocked outflow over a range of chemically-relevant timescales. Here, we will present the effectiveness of using chemical tracers to determine the presence of a shock long after it has passed, as well as the prominence of post-shock gas-phase formation and destruction of shock-tracing molecules.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/96951

DOI

https://doi.org/10.15278/isms.2017.TF06

Copyright and License Information

Copyright 2017 Andrew M. Burkhardt

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