Analysis of the origin of water, carbon monoxide, and carbon dioxide in the Uranus atmosphere

Here we list the chemical reactions coupling oxygen species and hydrocarbons. The models were also run considering the hydrocarbon−hydrocarbon reactions not listed here. The numbering of the reactions reflects the complete set of considered reactions, listing here only those involving oxygen species...

Descripción completa

Detalles Bibliográficos
Autores: Lara, L. M., Rodrigo, Rafael, Moreno, R., Lampón, M.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Instituto Nacional de Técnica Aeroespacial (INTA)
Repositorio:DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
OAI Identifier:oai:digital.inta.es:20.500.12666/359
Acceso en línea:https://www.aanda.org/articles/aa/full_html/2019/01/aa32123-17/aa32123-17.html
http://hdl.handle.net/20.500.12666/359
Access Level:acceso abierto
Palabra clave:Planets and satellites: atmospheres
Planets and satellites: gaseous planets
Planets and satellites: individual: Uranus
Planets and satellites: composition
id ES_a9538bf529bc83fe101cc2aec71071cf
oai_identifier_str oai:digital.inta.es:20.500.12666/359
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv Analysis of the origin of water, carbon monoxide, and carbon dioxide in the Uranus atmosphere
title Analysis of the origin of water, carbon monoxide, and carbon dioxide in the Uranus atmosphere
spellingShingle Analysis of the origin of water, carbon monoxide, and carbon dioxide in the Uranus atmosphere
Lara, L. M.
Planets and satellites: atmospheres
Planets and satellites: gaseous planets
Planets and satellites: individual: Uranus
Planets and satellites: composition
title_short Analysis of the origin of water, carbon monoxide, and carbon dioxide in the Uranus atmosphere
title_full Analysis of the origin of water, carbon monoxide, and carbon dioxide in the Uranus atmosphere
title_fullStr Analysis of the origin of water, carbon monoxide, and carbon dioxide in the Uranus atmosphere
title_full_unstemmed Analysis of the origin of water, carbon monoxide, and carbon dioxide in the Uranus atmosphere
title_sort Analysis of the origin of water, carbon monoxide, and carbon dioxide in the Uranus atmosphere
dc.creator.none.fl_str_mv Lara, L. M.
Rodrigo, Rafael
Moreno, R.
Lampón, M.
author Lara, L. M.
author_facet Lara, L. M.
Rodrigo, Rafael
Moreno, R.
Lampón, M.
author_role author
author2 Rodrigo, Rafael
Moreno, R.
Lampón, M.
author2_role author
author
author
dc.contributor.none.fl_str_mv Unidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737
Lara, L. M. [0000-0002-7184-920X]
Moreno, R. [0000-0002-9171-2702]
Lampón, M. [0000-0002-0183-7158]
Ministerio de Economía y Competitividad (MINECO)
Agencia Estatal de Investigación (AEI)
dc.subject.none.fl_str_mv Planets and satellites: atmospheres
Planets and satellites: gaseous planets
Planets and satellites: individual: Uranus
Planets and satellites: composition
topic Planets and satellites: atmospheres
Planets and satellites: gaseous planets
Planets and satellites: individual: Uranus
Planets and satellites: composition
description Here we list the chemical reactions coupling oxygen species and hydrocarbons. The models were also run considering the hydrocarbon−hydrocarbon reactions not listed here. The numbering of the reactions reflects the complete set of considered reactions, listing here only those involving oxygen species. All values are quoted in the cm s system. Three-body reaction rates are computed according to the expression k = (k0k∞)∕(k0M + k∞), where M denotes the total number density.
publishDate 2019
dc.date.none.fl_str_mv 2019
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://www.aanda.org/articles/aa/full_html/2019/01/aa32123-17/aa32123-17.html
http://hdl.handle.net/20.500.12666/359
url https://www.aanda.org/articles/aa/full_html/2019/01/aa32123-17/aa32123-17.html
http://hdl.handle.net/20.500.12666/359
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv BES-2015-074542
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2016-76076-R
FASES C/D DE INSTRUMENTOS JANUS Y GALA DE LA MISION JUICE (ESA), CIENCIA CON LA MISION ROSETTA Y ATMOSFERAS EXOPLANETARIAS
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2016-76076-R
info:eu-repo/grantAgreement/MINECO//BES-2015-074542
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
© ESO 2019
https://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
© ESO 2019
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
instname:Instituto Nacional de Técnica Aeroespacial (INTA)
instname_str Instituto Nacional de Técnica Aeroespacial (INTA)
reponame_str DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
collection DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869416010991271936
spelling Analysis of the origin of water, carbon monoxide, and carbon dioxide in the Uranus atmosphereLara, L. M.Rodrigo, RafaelMoreno, R.Lampón, M.Planets and satellites: atmospheresPlanets and satellites: gaseous planetsPlanets and satellites: individual: UranusPlanets and satellites: compositionHere we list the chemical reactions coupling oxygen species and hydrocarbons. The models were also run considering the hydrocarbon−hydrocarbon reactions not listed here. The numbering of the reactions reflects the complete set of considered reactions, listing here only those involving oxygen species. All values are quoted in the cm s system. Three-body reaction rates are computed according to the expression k = (k0k∞)∕(k0M + k∞), where M denotes the total number density.Context. We present here an analysis of the potential sources of oxygen species in the Uranus atmosphere. Aims. Our aim is to explain the current measurements of H2O, CO, and CO2 in the Uranus atmosphere, which would allow us to constrain the influx of oxygen-bearing species and its origin in this planet. Methods. We used a time-dependent photochemical model of the Uranus atmosphere to ascertain the origin of H2O, CO, and CO2. We thoroughly investigated the evolution of material delivered by a cometary impact, together with a combined source, i.e. cometary impact and a steady source of oxygen species from micrometeoroid ablation. Results. We find that an impactor in the size range ~1.2–3.5 km hitting the planet between 450 and 822 yr ago could have delivered the CO currently seen in the Uranus stratosphere. Given the current set of observations, an oxygen-bearing species supply from ice grain ablation cannot be ruled out. Our study also indicates that a cometary impact cannot be the only source for rendering the observed abundances of H2O and CO2. The scenarios in which CO originates by a cometary impact and H2O and CO2 result from ice grain sublimation can explain both the space telescope and ground-based data for H2O, CO, and CO2. Similarly, a steady influx of water, carbon monoxide, and carbon dioxide, and a cometary impact delivering carbon monoxide give rise to abundances matching the observations. The time evolution of HCN also delivered by a cometary impact (as 1% of the CO in mass), when discarding chemical recycling of HCN once it is lost by photolysis and condensation, produces a very low stratospheric abundance which could be likely non-detectable. Consideration of N2-initiated chemistry could represent a source of HCN allowing for a likely observable stratospheric mixing ratio. Conclusions. Our modelling strongly indicates that water in the Uranus atmosphere likely originates from micrometeroid ablation, whereas its cometary origin can be discarded with a very high level of confidence. Also, we cannot firmly constrain the origin of the detected carbon monoxide on Uranus as a cometary impact, ice grain ablation, or a combined source due to both processes can give rise to the atmospheric mixing ratio measured with the Herschel Space Observatory. To establish the origin of oxygen species in the Uranus atmosphere, observations have to allow the retrieval of vertical profiles or H2O, CO, and CO2. Measurements in narrow pressure ranges, i.e. basically one pressure level, can be reproduced by different models because it is not possible to break this degeneracy about these three oxygen species in the Uranian atmosphere.This research has been supported by the Spanish Ministerio de Economía y Competitividad under contracts ESP2014–54062–R and ESP 2016–76076–R. M.L. acknowledges the Agencia Estatal de Investigación for the BES–2015–074542 ; With funding from the Spanish government through the "María de Maeztu Unit of Excellence" accreditation (MDM-2017-0737).Peer reviewEDP SciencesUnidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737Lara, L. M. [0000-0002-7184-920X]Moreno, R. [0000-0002-9171-2702]Lampón, M. [0000-0002-0183-7158]Ministerio de Economía y Competitividad (MINECO)Agencia Estatal de Investigación (AEI)202120212019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501application/pdfhttps://www.aanda.org/articles/aa/full_html/2019/01/aa32123-17/aa32123-17.htmlhttp://hdl.handle.net/20.500.12666/359reponame:DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacialinstname:Instituto Nacional de Técnica Aeroespacial (INTA)InglésBES-2015-074542info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2016-76076-RFASES C/D DE INSTRUMENTOS JANUS Y GALA DE LA MISION JUICE (ESA), CIENCIA CON LA MISION ROSETTA Y ATMOSFERAS EXOPLANETARIASinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2016-76076-Rinfo:eu-repo/grantAgreement/MINECO//BES-2015-074542Attribution-NonCommercial-NoDerivatives 4.0 International© ESO 2019https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:digital.inta.es:20.500.12666/3592026-06-23T12:46:37Z
score 15.300724

Similares en LA Referencia