Survival of polycyclic aromatic hydrocarbon knockout fragments in the interstellar medium
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , |
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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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 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10362/164914 |
url |
http://hdl.handle.net/10362/164914 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2041-1723 PURE: 85383544 https://doi.org/10.1038/s41467-021-26899-0 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
8 application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799138193312841728 |