Survival of polycyclic aromatic hydrocarbon knockout fragments in the interstellar medium

Detalhes bibliográficos
Autor(a) principal: Gatchell, Michael
Data de Publicação: 2021
Outros Autores: Ameixa, João, Ji, Ming Chao, Stockett, Mark H., Simonsson, Ansgar, Denifl, Stephan, Cederquist, Henrik, Schmidt, Henning T., Zettergren, Henning
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/164914
Resumo: Funding Information: This work was performed at the Swedish National Infrastructure, DESIREE (Swedish Research Council Contract No. 2017-00621). M.G., M.S., H.C., H.S., and H.Z. acknowledge personal support from the Swedish Research Council (contracts 2020-03104, 2016-03675, 2019-04379, 2018-04092, 2020-03437, respectively). It is a part of the project “Probing charge-and mass-transfer reactions on the atomic level”, supported by the Knut and Alice Wallenberg Foundation (Grant no. 2018.0028). J.A. acknowledges the Portuguese National Funding Agency FCT-MCTES through scholarship grant number PD/BD/114447/2016, as well as the Radiation Biology and Biophysics Doctoral Training Program (RaBBiT, PD/00193/2012); UID/Multi/04378/2019 (UCIBIO); UID/FIS/00068/ 2019 (CEFITEC). This article is based upon work from COST Action CA18212— Molecular Dynamics in the GAS phase (MD-GAS), supported by COST (European Cooperation in Science and Technology). We thank the storage ring operators and technical staff at the Department of Physics of Stockholm University for their support in these experiments. Publisher Copyright: © 2021, The Author(s).
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spelling Survival of polycyclic aromatic hydrocarbon knockout fragments in the interstellar mediumChemistry(all)Biochemistry, Genetics and Molecular Biology(all)Physics and Astronomy(all)Funding Information: This work was performed at the Swedish National Infrastructure, DESIREE (Swedish Research Council Contract No. 2017-00621). M.G., M.S., H.C., H.S., and H.Z. acknowledge personal support from the Swedish Research Council (contracts 2020-03104, 2016-03675, 2019-04379, 2018-04092, 2020-03437, respectively). It is a part of the project “Probing charge-and mass-transfer reactions on the atomic level”, supported by the Knut and Alice Wallenberg Foundation (Grant no. 2018.0028). J.A. acknowledges the Portuguese National Funding Agency FCT-MCTES through scholarship grant number PD/BD/114447/2016, as well as the Radiation Biology and Biophysics Doctoral Training Program (RaBBiT, PD/00193/2012); UID/Multi/04378/2019 (UCIBIO); UID/FIS/00068/ 2019 (CEFITEC). This article is based upon work from COST Action CA18212— Molecular Dynamics in the GAS phase (MD-GAS), supported by COST (European Cooperation in Science and Technology). We thank the storage ring operators and technical staff at the Department of Physics of Stockholm University for their support in these experiments. Publisher Copyright: © 2021, The Author(s).Laboratory studies play a crucial role in understanding the chemical nature of the interstellar medium (ISM), but the disconnect between experimental timescales and the timescales of reactions in space can make a direct comparison between observations, laboratory, and model results difficult. Here we study the survival of reactive fragments of the polycyclic aromatic hydrocarbon (PAH) coronene, where individual C atoms have been knocked out of the molecules in hard collisions with He atoms at stellar wind and supernova shockwave velocities. Ionic fragments are stored in the DESIREE cryogenic ion-beam storage ring where we investigate their decay for up to one second. After 10 ms the initially hot stored ions have cooled enough so that spontaneous dissociation no longer takes place at a measurable rate; a majority of the fragments remain intact and will continue to do so indefinitely in isolation. Our findings show that defective PAHs formed in energetic collisions with heavy particles may survive at thermal equilibrium in the interstellar medium indefinitely, and could play an important role in the chemistry in there, due to their increased reactivity compared to intact or photo-fragmented PAHs.DF – Departamento de FísicaCeFITec – Centro de Física e Investigação TecnológicaRUNGatchell, MichaelAmeixa, JoãoJi, Ming ChaoStockett, Mark H.Simonsson, AnsgarDenifl, StephanCederquist, HenrikSchmidt, Henning T.Zettergren, Henning2024-03-14T00:17:25Z2021-122021-12-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article8application/pdfhttp://hdl.handle.net/10362/164914eng2041-1723PURE: 85383544https://doi.org/10.1038/s41467-021-26899-0info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-18T01:47:39Zoai:run.unl.pt:10362/164914Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T04:02:04.566192Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Survival of polycyclic aromatic hydrocarbon knockout fragments in the interstellar medium
title Survival of polycyclic aromatic hydrocarbon knockout fragments in the interstellar medium
spellingShingle Survival of polycyclic aromatic hydrocarbon knockout fragments in the interstellar medium
Gatchell, Michael
Chemistry(all)
Biochemistry, Genetics and Molecular Biology(all)
Physics and Astronomy(all)
title_short Survival of polycyclic aromatic hydrocarbon knockout fragments in the interstellar medium
title_full Survival of polycyclic aromatic hydrocarbon knockout fragments in the interstellar medium
title_fullStr Survival of polycyclic aromatic hydrocarbon knockout fragments in the interstellar medium
title_full_unstemmed Survival of polycyclic aromatic hydrocarbon knockout fragments in the interstellar medium
title_sort Survival of polycyclic aromatic hydrocarbon knockout fragments in the interstellar medium
author Gatchell, Michael
author_facet Gatchell, Michael
Ameixa, João
Ji, Ming Chao
Stockett, Mark H.
Simonsson, Ansgar
Denifl, Stephan
Cederquist, Henrik
Schmidt, Henning T.
Zettergren, Henning
author_role author
author2 Ameixa, João
Ji, Ming Chao
Stockett, Mark H.
Simonsson, Ansgar
Denifl, Stephan
Cederquist, Henrik
Schmidt, Henning T.
Zettergren, Henning
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv DF – Departamento de Física
CeFITec – Centro de Física e Investigação Tecnológica
RUN
dc.contributor.author.fl_str_mv Gatchell, Michael
Ameixa, João
Ji, Ming Chao
Stockett, Mark H.
Simonsson, Ansgar
Denifl, Stephan
Cederquist, Henrik
Schmidt, Henning T.
Zettergren, Henning
dc.subject.por.fl_str_mv Chemistry(all)
Biochemistry, Genetics and Molecular Biology(all)
Physics and Astronomy(all)
topic Chemistry(all)
Biochemistry, Genetics and Molecular Biology(all)
Physics and Astronomy(all)
description Funding Information: This work was performed at the Swedish National Infrastructure, DESIREE (Swedish Research Council Contract No. 2017-00621). M.G., M.S., H.C., H.S., and H.Z. acknowledge personal support from the Swedish Research Council (contracts 2020-03104, 2016-03675, 2019-04379, 2018-04092, 2020-03437, respectively). It is a part of the project “Probing charge-and mass-transfer reactions on the atomic level”, supported by the Knut and Alice Wallenberg Foundation (Grant no. 2018.0028). J.A. acknowledges the Portuguese National Funding Agency FCT-MCTES through scholarship grant number PD/BD/114447/2016, as well as the Radiation Biology and Biophysics Doctoral Training Program (RaBBiT, PD/00193/2012); UID/Multi/04378/2019 (UCIBIO); UID/FIS/00068/ 2019 (CEFITEC). This article is based upon work from COST Action CA18212— Molecular Dynamics in the GAS phase (MD-GAS), supported by COST (European Cooperation in Science and Technology). We thank the storage ring operators and technical staff at the Department of Physics of Stockholm University for their support in these experiments. Publisher Copyright: © 2021, The Author(s).
publishDate 2021
dc.date.none.fl_str_mv 2021-12
2021-12-01T00:00:00Z
2024-03-14T00:17:25Z
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PURE: 85383544
https://doi.org/10.1038/s41467-021-26899-0
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