A chemical study of carbon fractionation in external galaxies

Viti, S.; Fontani, F.; Jiménez Serra, I.

Publicación:
A chemical study of carbon fractionation in external galaxies

dc.contributor.author	Viti, S.
dc.contributor.author	Fontani, F.
dc.contributor.author	Jiménez Serra, I.
dc.contributor.funder	Agencia Estatal de Investigación (AEI)
dc.contributor.funder	European Research Council (ERC)
dc.contributor.funder	Science and Technology Facilities Council (STFC)
dc.contributor.orcid	0000-0003-4493-8714
dc.contributor.orcid	0000-0003-0348-3418
dc.contributor.orcid	0000-0001-8504-8844
dc.contributor.other	Unidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737
dc.date.accessioned	2021-04-08T07:24:45Z
dc.date.available	2021-04-08T07:24:45Z
dc.date.issued	2020-07-18
dc.description.abstract	In the interstellar medium carbon exists in the form of two stable isotopes 12C and 13C and their ratio is a good indicator of nucleosynthesis in galaxies. However, chemical fractionation can potentially significantly alter this ratio and in fact observations of carbon fractionation within the same galaxy has been found to vary from species to species. In this paper, we theoretically investigate the carbon fractionation for selected abundant carbon-bearing species in order to determine the conditions that may lead to a spread of the 12C/13C ratio in external galaxies. We find that carbon fractionation is sensitive to almost all the physical conditions we investigated, it strongly varies with time for all species but CO, and shows pronounced differences across species. Finally, we discuss our theoretical results in the context of the few observations of the 12C/13C in both local and higher redshift galaxies.	es
dc.description.peerreviewed	Peer review	es
dc.description.sponsorship	SV acknowledges support from the European Research Council (ERC) grant MOPPEX ERC-833460. SV and FF acknowledge the support of Science and Technology Facilities Council (STFC) (grant number ST/R000476/1) and the Center for Astrochemical Study at MPE for partially supporting this work. I.J.-S. has received partial support from the Spanish FEDER (project number ESP2017-86582-C4-1-R). We thank Prof Roueff for providing us the needed information to perform a benchmarking with her model, and the anonymous referee for their constructive comments which improved the manuscript. Also with funding from the Spanish government through the "María de Maeztu Unit of Excellence" accreditation (MDM-2017-0737)	es
dc.identifier.citation	Monthly Notices of the Royal Astronomical Society 497: 4333- 4345 (2020)	es
dc.identifier.doi	10.1093/mnras/staa2215
dc.identifier.e-issn	1365-2966
dc.identifier.issn	0035-8711
dc.identifier.other	https://academic.oup.com/mnras/article-abstract/497/4/4333/5877251
dc.identifier.uri	http://hdl.handle.net/20.500.12666/150
dc.language.iso	eng	es
dc.publisher	Oxford Academics: Blackwell Publishing	es
dc.relation	info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2017-86582-C4-1-R/ES/CONTRIBUCION ESPAÑOLA A LAS MISIONES ESPACIALES CRIOGENICAS SPICA Y ATHENA, POST-OPERACIONES DE HERSCHEL Y EXPLOTACION CIENTIFICA MULTIFRECUENCIA/
dc.relation.projectID	info:eu-repo/grantAgreement/EC/H2020/833460
dc.rights	Attribution-NonCommercial-NoDerivatives 4.0 International	es
dc.rights.accessRights	info:eu-repo/semantics/openAccess
dc.rights.license	© 2020 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.
dc.rights.uri	https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject	ISM: abundances	es
dc.subject	ISM: molecules	es
dc.subject	Galaxies: ISM	es
dc.subject	Molecular Tracers	es
dc.subject	Gas	es
dc.subject	Star Formation	es
dc.title	A chemical study of carbon fractionation in external galaxies	es
dc.type	info:eu-repo/semantics/article	es
dc.type.coar	http://purl.org/coar/resource_type/c_6501
dc.type.hasVersion	info:eu-repo/semantics/publishedVersion
dspace.entity.type	Publication