期刊
ASTROPHYSICAL JOURNAL LETTERS
卷 900, 期 1, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.3847/2041-8213/aba632
关键词
Astrochemistry; Polycyclic aromatic hydrocarbons; Chemical abundances; Interstellar medium; Dark interstellar clouds; Dense interstellar clouds; Interstellar molecules
资金
- Smithsonian Institution
- NSF [AST-1908576, AST-1615847]
- NASA [80NSSC18K0396, NAS-526555]
- NASA through Hubble Fellowship - Space Telescope Science Institute [HST-HF2-51396]
- Alexander von Humboldt Stiftung/Foundation
- NSF
- Virginia Space Grant Consortium
- National Science Foundation [AST 1906489]
- NASA Astrobiology Institute through the Goddard Center for Astrobiology
We present an overview of the GBT Observations of TMC-1: Hunting Aromatic Molecules Large Program on the Green Bank Telescope. This and a related program were launched to explore the depth and breadth of aromatic chemistry in the interstellar medium at the earliest stages of star formation, following our earlier detection of benzonitrile (c-C6H5CN) in TMC-1. In this work, details of the observations, use of archival data, and data reduction strategies are provided. Using these observations, the interstellar detection of propargyl cyanide (HCCCH2CN) is described, as well as the accompanying laboratory spectroscopy. We discuss these results, and the survey project as a whole, in the context of investigating a previously unexplored reservoir of complex, gas-phase molecules in pre-stellar sources. A series of companion papers describe other new astronomical detections and analyses.
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