Publication: Rotational state-changes in C5N− by collisions with He and H2
dc.contributor.coauthor | Biswas,R. | |
dc.contributor.coauthor | Giri,K. | |
dc.contributor.coauthor | González-Sánchez,L. | |
dc.contributor.coauthor | Gianturco,F.A. | |
dc.contributor.coauthor | Lourderaj,U. | |
dc.contributor.coauthor | Sathyamurthy,N. | |
dc.contributor.coauthor | Veselinova,A. | |
dc.contributor.coauthor | Wester,R. | |
dc.contributor.department | Department of Chemistry | |
dc.contributor.other | Department of Chemistry | |
dc.contributor.schoolcollegeinstitute | College of Sciences | |
dc.date.accessioned | 2024-12-29T09:41:21Z | |
dc.date.issued | 2023 | |
dc.description.abstract | The 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.indexedby | WoS | |
dc.description.indexedby | Scopus | |
dc.description.issue | 4 | |
dc.description.openaccess | All Open Access | |
dc.description.openaccess | Hybrid Gold Open Access | |
dc.description.publisherscope | International | |
dc.description.sponsors | L.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.volume | 552 | |
dc.identifier.doi | 10.1093/mnras/stad1261 | |
dc.identifier.eissn | 1365-2966 | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.quartile | Q1 | |
dc.identifier.scopus | 2-s2.0-85161508951 | |
dc.identifier.uri | https://doi.org/10.1093/mnras/stad1261 | |
dc.identifier.uri | https://hdl.handle.net/20.500.14288/23590 | |
dc.identifier.wos | 994685100005 | |
dc.keywords | Astrochemistry | |
dc.keywords | ISM: molecules | |
dc.keywords | Methods: numerical | |
dc.keywords | Molecular data | |
dc.keywords | Molecular processes | |
dc.keywords | Photodissociation region (PDR) | |
dc.language | en | |
dc.publisher | Oxford University Press | |
dc.relation.grantno | Ministerio de Ciencia, Innovación y Universidades, MCIU | |
dc.source | Monthly Notices of the Royal Astronomical Society | |
dc.subject | Astronomy | |
dc.subject | Astrophysics | |
dc.title | Rotational state-changes in C5N− by collisions with He and H2 | |
dc.type | Journal article | |
dspace.entity.type | Publication | |
local.contributor.kuauthor | Yurtsever, Ersin | |
relation.isOrgUnitOfPublication | 035d8150-86c9-4107-af16-a6f0a4d538eb | |
relation.isOrgUnitOfPublication.latestForDiscovery | 035d8150-86c9-4107-af16-a6f0a4d538eb |