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ASTROROT

Unraveling interstellar chemistry with broadband microwave spectroscopy and next-generation telescope arrays

CoordinatorDeutsches Elektronen-Synchrotron ; Max Planck Society
Grant period2015-05-01 - 2020-04-30
Funding bodyEuropean Union
Call numberERC-2014-STG
Grant number638027
IdentifierG:(EU-Grant)638027

Note: The goal of the research program, ASTROROT, is to significantly advance the knowledge of astrochemistry by exploring its molecular complexity and by discovering new molecule classes and key chemical processes in space. So far, mostly physical reasons were investigated for the observed variations in molecular abundances. We here propose to study the influence of chemistry on the molecular composition of the universe by combining unprecedentedly high-quality laboratory spectroscopy and pioneering telescope observations. Array telescopes provide new observations of rotational molecular emission, leading to an urgent need for microwave spectroscopic data of exotic molecules. We will use newly developed, unique broadband microwave spectrometers with the cold conditions of a molecular jet and the higher temperatures of a waveguide to mimic different interstellar conditions. Their key advantages are accurate transition intensities, tremendously reduced measurement times, and unique mixture compatibility. Our laboratory experiments will motivate and guide astronomic observations, and enable their interpretation. The expected results are • the exploration of molecular complexity by discovering new classes of molecules in space, • the detection of isotopologues that provide information about the stage of chemical evolution, • the generation of abundance maps of highly excited molecules to learn about their environment, • the identification of key intermediates in astrochemical reactions. The results will significantly foster and likely revolutionize our understanding of astrochemistry. The proposed research will go far beyond the state-of-the-art: We will use cutting-edge techniques both in the laboratory and at the telescope to greatly improve and speed the process of identifying molecular fingerprints. These techniques now enable studies at this important frontier of physics and chemistry that previously would have been prohibitively time-consuming or even impossible.
     

Recent Publications

All known publications ...
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Ultrafast dynamics of fluorene initiated by highly intense laser fields
[10.26434/chemrxiv-2023-18w5m-v3]  GO OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

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Ultrafast dynamics of polycyclic aromatic hydrocarbons initiated by highly intense laser fields
Physical chemistry, chemical physics 26(30), 20261-20272 () [10.1039/D3CP05063G]  GO Embargoed OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

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Quantum tunnelling facilitates the water motion across the surface of phenanthrene
Journal of the American Chemical Society 145(31), 17201 - 17210 () [10.1021/jacs.3c04281]  GO OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article  ;  ;  ;  ;  ;  ;
New potential candidates for astronomical searches discovered in the electrical discharge of the PAH naphthalene and acetonitrile
Journal of molecular spectroscopy 386, 111629 () [10.1016/j.jms.2022.111629]  GO Embargoed OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

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Time-Resolved Relaxation and Fragmentation of Polycyclic Aromatic Hydrocarbons Investigated in the Ultrafast XUV-IR Regime
Nature Communications 12(1), 6107 (1-11) () [10.1038/s41467-021-26193-z]  GO OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article  ;  ;  ;  ;  ;
Facilitating Interstellar Searches for Simple Amino Alcohols with Accurate Rest Frequencies into the Millimeter-wave Regime: Alaninol, Valinol, and Leucinol
The astrophysical journal / 2 912(2), 90 () [10.3847/1538-4357/abe94c]  GO OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

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How does the composition of a PAH influence its microsolvation? A rotational spectroscopy study of the phenanthrene–water and phenanthridine–water clusters
Physical chemistry, chemical physics 23(16), 9721 - 9732 () [10.1039/D1CP00898F]  GO Embargoed OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

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Deciphering the rotational spectrum of the first excited torsional state of propylene oxide
Journal of molecular spectroscopy 378, 111445 () [10.1016/j.jms.2021.111445]  GO Embargoed OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

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Rotational spectroscopy of imidazole: Accurate spectroscopic information for three vibrationally excited states and the heavy-atom isotopologues up to 295 GHz
Journal of molecular spectroscopy 378, 111452 () [10.1016/j.jms.2021.111452]  GO Embargoed OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Dissertation / PhD Thesis  ;
High-resolution broadband rotational spectroscopy and electrical discharge experiments of astrochemically relevant molecules.
241 pp. () [10.3204/PUBDB-2020-04835] = Dissertation, University of Hamburg, 2020  GO OpenAccess  Download fulltext Files  Download fulltextFulltext by OpenAccess repository BibTeX | EndNote: XML, Text | RIS

All known publications ...
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 Record created 2015-09-15, last modified 2023-02-12
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