NEW CARBON-CHAIN MOLECULAR DETECTIONS IN TMC-1 WITH THE GREEN BANK TELESCOPE

McGuire, Brett A.

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https://hdl.handle.net/2142/100660 Copy

Description

Title

NEW CARBON-CHAIN MOLECULAR DETECTIONS IN TMC-1 WITH THE GREEN BANK TELESCOPE

Author(s)

McGuire, Brett A.

Contributor(s)

• Remijan, Anthony
• McCarthy, Michael C.
• Kalenskii, Sergei
• Herbst, Eric
• Shingledecker, Christopher N.
• Burkhardt, Andrew M.

Issue Date

06/21/18

Keyword(s)

Astronomy

Abstract

The source of molecular complexity in the interstellar medium is strongly dependent on the build up of carbon-chain molecules. As such, it is crucial to develop a robust chemical inventory of the largest of these carbon-chain species and, in turn, constrain their formation mechanisms. The cold core TMC-1 has long been a source of new molecular detections, particularly for unsaturated carbon-rich molecules. Through deep observations with the Green Bank Telescope of TMC-1, we report 8 new isotopologues of HC$_{5}$N and HC$_{7}$N and an entirely new molecular family (HC$_{5}$O, HC$_{7}$O). These new detections provide crucial insights to the formation of PAHs and the underlying carbon-chain chemistry of dark clouds. In addition, we will also discuss preliminary results from the next stage of GBT chemical surveys toward TMC-1.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

Permalink

http://hdl.handle.net/2142/100660

DOI

10.15278/isms.2018.RL03

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