Indene energetic processing in ice mantles in the interstellar medium

11 pags., 8 figs., 5 tabs.

Bibliographic Details
Authors: Maté, Belén, Tanarro, Isabel, Peláez, Ramón J., Cernicharo, José, Herrero, Víctor J.
Format: article
Status:Published version
Publication Date:2024
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/356848
Online Access:http://hdl.handle.net/10261/356848
https://api.elsevier.com/content/abstract/scopus_id/85185445691
Access Level:Open access
Keyword:Astrochemistry
Infrared: ISM
ISM: molecules
Methods: laboratory: molecular
Molecular data
Molecular processes
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spelling Indene energetic processing in ice mantles in the interstellar mediumMaté, BelénTanarro, IsabelPeláez, Ramón J.Cernicharo, JoséHerrero, Víctor J.AstrochemistryInfrared: ISMISM: moleculesMethods: laboratory: molecularMolecular dataMolecular processes11 pags., 8 figs., 5 tabs.Context. Indene, a small PAH, has been detected in the gas phase in the cold dense cloud TMC-1. Due to the low temperature in the cloud, below indene condensation temperature, its presence in the ice mantles of dust grains is likely. Aims. The aim of this work is to study the stability of indene against the energetic processing by VUV photons or cosmic rays in the ice mantles of dense molecular clouds. Methods. Ice layers of pure indene or indene diluted in water ice were grown by vapor deposition on a cold surface held at 10 K, 100 K, or 140 K. The samples were processed with VUV photons (120–180 nm) and 5 keV electrons and the destruction of indene was monitored by following the decay of its absorption bands in the infrared (IR) spectrum. Finally, we recorded the mass spectra of the decomposition products sublimated by thermal programmed desorption of the processed samples. Results. Photolysis and radiolysis cross-sections, along with half-life energy doses for indene in the solid form and diluted in water ice matrices at 10 K were derived. Ketones and alcohols were identified as the main processing products in indene and water–ice mixtures Conclusions. Dilution in water ice enhances the destruction rate of indene under energetic processing. The molecule is expected to survive for more than 107 yr in the ice mantles of grains in the interior of dense clouds, but it will end up getting destroyed within the next few hundred years by the intense VUV field in the diffuse region at the edges of the cloud.B.M., I.T., R.J.P., V.J.H. and J.C. acknowledge support from the Ministerio de Economia y Competitividad (MINECO) and the Ministerio de Ciencia e Innovación (MiCiNN) of Spain under grants PID2020-113084GB-100/AEI/10.13039/501100011033 and PID2019-107115GBC21/AEI/10.13039/501100011033, and from the European Union under grant ERC-2013-Syg-210656-NANOCOSMOS.Peer reviewedEDP SciencesMinisterio de Economía y Competitividad (España)Ministerio de Ciencia e Innovación (España)European CommissionMaté, Belén [0000-0002-5478-8644]Tanarro, Isabel [0000-0002-1888-513X]Peláez, Ramón J. [0000-0002-8982-2224]Cernicharo, José [0000-0002-3518-2524]Herrero, Victor J. [0000-0002-7456-4832]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/356848https://api.elsevier.com/content/abstract/scopus_id/85185445691reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113084GB-I00info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-107115GB-C21info:eu-repo/grantAgreement/EC/FP7/210656Astronomy and Astrophysicshttps://doi.org/10.1051/0004-6361/202347889Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3568482026-05-22T06:33:51Z
dc.title.none.fl_str_mv Indene energetic processing in ice mantles in the interstellar medium
title Indene energetic processing in ice mantles in the interstellar medium
spellingShingle Indene energetic processing in ice mantles in the interstellar medium
Maté, Belén
Astrochemistry
Infrared: ISM
ISM: molecules
Methods: laboratory: molecular
Molecular data
Molecular processes
title_short Indene energetic processing in ice mantles in the interstellar medium
title_full Indene energetic processing in ice mantles in the interstellar medium
title_fullStr Indene energetic processing in ice mantles in the interstellar medium
title_full_unstemmed Indene energetic processing in ice mantles in the interstellar medium
title_sort Indene energetic processing in ice mantles in the interstellar medium
dc.creator.none.fl_str_mv Maté, Belén
Tanarro, Isabel
Peláez, Ramón J.
Cernicharo, José
Herrero, Víctor J.
author Maté, Belén
author_facet Maté, Belén
Tanarro, Isabel
Peláez, Ramón J.
Cernicharo, José
Herrero, Víctor J.
author_role author
author2 Tanarro, Isabel
Peláez, Ramón J.
Cernicharo, José
Herrero, Víctor J.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Ministerio de Ciencia e Innovación (España)
European Commission
Maté, Belén [0000-0002-5478-8644]
Tanarro, Isabel [0000-0002-1888-513X]
Peláez, Ramón J. [0000-0002-8982-2224]
Cernicharo, José [0000-0002-3518-2524]
Herrero, Victor J. [0000-0002-7456-4832]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Astrochemistry
Infrared: ISM
ISM: molecules
Methods: laboratory: molecular
Molecular data
Molecular processes
topic Astrochemistry
Infrared: ISM
ISM: molecules
Methods: laboratory: molecular
Molecular data
Molecular processes
description 11 pags., 8 figs., 5 tabs.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/356848
https://api.elsevier.com/content/abstract/scopus_id/85185445691
url http://hdl.handle.net/10261/356848
https://api.elsevier.com/content/abstract/scopus_id/85185445691
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113084GB-I00
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-107115GB-C21
info:eu-repo/grantAgreement/EC/FP7/210656
Astronomy and Astrophysics
https://doi.org/10.1051/0004-6361/202347889
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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