Publication:
Rotational state-changes in C5N− by collisions with He and H2

dc.contributor.coauthorBiswas,R.
dc.contributor.coauthorGiri,K.
dc.contributor.coauthorGonzález-Sánchez,L.
dc.contributor.coauthorGianturco,F.A.
dc.contributor.coauthorLourderaj,U.
dc.contributor.coauthorSathyamurthy,N.
dc.contributor.coauthorVeselinova,A.
dc.contributor.coauthorWester,R.
dc.contributor.departmentDepartment of Chemistry
dc.contributor.otherDepartment of Chemistry
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.date.accessioned2024-12-29T09:41:21Z
dc.date.issued2023
dc.description.abstractThe anion C5N− is one of the largest linear (C, N)-bearing chains detected in the interstellar medium. Here we present and discuss the general features of new ab initio potential energy surfaces describing the interaction of this linear anion with He and H2. We employ a Legendre Polynomials expansion representation for the former and an artificial neural network fit for the latter. We then carry out quantum scattering calculations to yield rotationally inelastic cross-sections for collisions with He and H2, using relative translational energy values in the range of 0.1-300 cm−1. We then obtained the corresponding inelastic rate coefficients as a function of temperature covering the range from 1 to 100 K. The results for these two systems are compared with each other, as well as with the earlier results on the C3N− colliding with the same partners. We found that the final inelastic rate coefficients for this anion are all fairly large, those from collisions with H2 being the largest. The consequences of such findings on their non-equilibrium rotational populations in interstellar environments are discussed in our conclusions.
dc.description.indexedbyWoS
dc.description.indexedbyScopus
dc.description.issue4
dc.description.openaccessAll Open Access
dc.description.openaccessHybrid Gold Open Access
dc.description.publisherscopeInternational
dc.description.sponsorsL.G.-S. and A.V. acknowledge the financial support by Ministerio de Ciencia, Innovación y Universidades (Spain). R.B. and U.L. thank NISER Bhubaneswar for providing computational facilities.
dc.description.volume552
dc.identifier.doi10.1093/mnras/stad1261
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.quartileQ1
dc.identifier.scopus2-s2.0-85161508951
dc.identifier.urihttps://doi.org/10.1093/mnras/stad1261
dc.identifier.urihttps://hdl.handle.net/20.500.14288/23590
dc.identifier.wos994685100005
dc.keywordsAstrochemistry
dc.keywordsISM: molecules
dc.keywordsMethods: numerical
dc.keywordsMolecular data
dc.keywordsMolecular processes
dc.keywordsPhotodissociation region (PDR)
dc.languageen
dc.publisherOxford University Press
dc.relation.grantnoMinisterio de Ciencia, Innovación y Universidades, MCIU
dc.sourceMonthly Notices of the Royal Astronomical Society
dc.subjectAstronomy
dc.subjectAstrophysics
dc.titleRotational state-changes in C5N− by collisions with He and H2
dc.typeJournal article
dspace.entity.typePublication
local.contributor.kuauthorYurtsever, Ersin
relation.isOrgUnitOfPublication035d8150-86c9-4107-af16-a6f0a4d538eb
relation.isOrgUnitOfPublication.latestForDiscovery035d8150-86c9-4107-af16-a6f0a4d538eb

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