An investigation of spectral line stacking techniques and application to the detection of HC11N

© 2021, The Author(s), under exclusive licence to Springer Nature Limited. As the inventory of interstellar molecules continues to grow, the gulf between small species, whose individual rotational lines can be observed with radio telescopes, and large ones, such as polycyclic aromatic hydrocarbons b...

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Main Authors: Loomis, Ryan A (Author), Burkhardt, Andrew M (Author), Shingledecker, Christopher N (Author), Charnley, Steven B (Author), Cordiner, Martin A (Author), Herbst, Eric (Author), Kalenskii, Sergei (Author), Lee, Kin Long Kelvin (Author), Willis, Eric R (Author), Xue, Ci (Author), Remijan, Anthony J (Author), McCarthy, Michael C (Author), McGuire, Brett A (Author)
Format: Article
Language:English
Published: Springer Science and Business Media LLC, 2022-03-09T19:04:39Z.
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Online Access:Get fulltext
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042 |a dc 
100 1 0 |a Loomis, Ryan A  |e author 
700 1 0 |a Burkhardt, Andrew M  |e author 
700 1 0 |a Shingledecker, Christopher N  |e author 
700 1 0 |a Charnley, Steven B  |e author 
700 1 0 |a Cordiner, Martin A  |e author 
700 1 0 |a Herbst, Eric  |e author 
700 1 0 |a Kalenskii, Sergei  |e author 
700 1 0 |a Lee, Kin Long Kelvin  |e author 
700 1 0 |a Willis, Eric R  |e author 
700 1 0 |a Xue, Ci  |e author 
700 1 0 |a Remijan, Anthony J  |e author 
700 1 0 |a McCarthy, Michael C  |e author 
700 1 0 |a McGuire, Brett A  |e author 
245 0 0 |a An investigation of spectral line stacking techniques and application to the detection of HC11N 
260 |b Springer Science and Business Media LLC,   |c 2022-03-09T19:04:39Z. 
856 |z Get fulltext  |u https://hdl.handle.net/1721.1/141100 
520 |a © 2021, The Author(s), under exclusive licence to Springer Nature Limited. As the inventory of interstellar molecules continues to grow, the gulf between small species, whose individual rotational lines can be observed with radio telescopes, and large ones, such as polycyclic aromatic hydrocarbons best studied in bulk via infrared and optical observations, is slowly being bridged. Understanding the connection between these two molecular reservoirs is critical to understanding the interstellar carbon cycle, but will require pushing the boundaries of how far we can probe molecular complexity while still retaining observational specificity. Towards this end, we present a method for detecting and characterizing new molecular species in single-dish observations towards sources with sparse line spectra. We have applied this method to data from the ongoing GOTHAM (GBT Observations of TMC-1: Hunting Aromatic Molecules) Green Bank Telescope large programme, discovering six new interstellar species. Here we highlight the detection of HC11N, the largest cyanopolyyne in the interstellar medium. 
546 |a en 
655 7 |a Article 
773 |t 10.1038/S41550-020-01261-4 
773 |t Nature Astronomy