Observation of a new electronic state of CO perturbing W¹Π1(v=1)
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Heays, Alan; Eidelsberg, M.; Stark, G.; Lemaire, J. L.; Gavilan, L.; Federman, S. R.; Lewis, B. R.; Lyons, J. R.; de Oliveira, N.; Joyeux, D.
Description
We observe photoabsorption of the W(1) ← X(0) band in five carbon monoxide isotopologues with a vacuum-ultraviolet Fourier-transform spectrometer and a synchrotron radiation source. We deduce transition energies, integrated cross sections, and natural linewidths of the observed rotational transitions and find a perturbation affecting these. Following a deperturbation analysis of all five isotopologues, the perturbing state is assigned to the v = 0 level of a previously unobserved (1)Π state...[Show more]
dc.contributor.author | Heays, Alan | |
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dc.contributor.author | Eidelsberg, M. | |
dc.contributor.author | Stark, G. | |
dc.contributor.author | Lemaire, J. L. | |
dc.contributor.author | Gavilan, L. | |
dc.contributor.author | Federman, S. R. | |
dc.contributor.author | Lewis, B. R. | |
dc.contributor.author | Lyons, J. R. | |
dc.contributor.author | de Oliveira, N. | |
dc.contributor.author | Joyeux, D. | |
dc.date.accessioned | 2015-10-27T02:55:46Z | |
dc.date.available | 2015-10-27T02:55:46Z | |
dc.identifier.issn | 0021-9606 | |
dc.identifier.uri | http://hdl.handle.net/1885/16120 | |
dc.description.abstract | We observe photoabsorption of the W(1) ← X(0) band in five carbon monoxide isotopologues with a vacuum-ultraviolet Fourier-transform spectrometer and a synchrotron radiation source. We deduce transition energies, integrated cross sections, and natural linewidths of the observed rotational transitions and find a perturbation affecting these. Following a deperturbation analysis of all five isotopologues, the perturbing state is assigned to the v = 0 level of a previously unobserved (1)Π state predicted by ab initio calculations to occur with the correct symmetry and equilibrium internuclear distance. We label this new state E″ (1)Π. Both of the interacting levels W(1) and E″(0) are predissociated, leading to dramatic interference effects in their corresponding linewidths. | |
dc.description.sponsorship | A.H. was supported by Grant No. 648.000.002 from the Netherlands Organisation for Scientific Research (NWO) via the Dutch Astrochemistry Network. This research was supported by funds from National Aeronautics and Space Administration (NASA) (Grant Nos. NNX09AC5GG to Wellesley College and NNG 06- GG70G and NNX10AD80G to the University of Toledo), CNRS (France), and Programme National Physico-Chimie du Milieu Interstellaire (PCMI). L.G. and J.L.L. acknowledge the financial support of the European Community 7th Framework Programme (FP7/2007-2013) Marie Curie ITN under Grant Agreement # 238258. | |
dc.publisher | American Institute of Physics (AIP) | |
dc.rights | http://www.sherpa.ac.uk/romeo/issn/0021-9606..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 26/10/15). Copyright 2014 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in The Journal of Chemical Physics and may be found at https://doi.org/10.1063/1.4897326 | |
dc.source | The Journal of Chemical Physics | |
dc.title | Observation of a new electronic state of CO perturbing W¹Π1(v=1) | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 141 | |
dc.date.issued | 2014-10-14 | |
local.identifier.absfor | 110900 | |
local.identifier.absfor | 020201 | |
local.identifier.ariespublication | U3488905xPUB4750 | |
local.publisher.url | https://www.aip.org/ | |
local.type.status | Published Version | |
local.contributor.affiliation | Heays, A N, Leiden University, Leiden Observatory, Netherlands | |
local.contributor.affiliation | Eidelsberg, M, Observatoire de Paris, France | |
local.contributor.affiliation | Stark, Glenn, Wellesley College, United States of America | |
local.contributor.affiliation | Lemaire, J L, Observatoire de Paris, France | |
local.contributor.affiliation | Gavilan, L, Observatoire de Paris, France | |
local.contributor.affiliation | Federman, S R, University of Toledo, United States of America | |
local.contributor.affiliation | Lewis, Brenton, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Atomic and Molecular Physics Laboratories, The Australian National University | |
local.contributor.affiliation | Lyons, J R, Arizona State University, United States of America | |
local.contributor.affiliation | De Oliveira, N, Synchrotron SOLEIL, Orme de Merisiers, France | |
local.contributor.affiliation | Joyeux, D, Synchrotron SOLEIL, Orme de Merisiers, France | |
local.identifier.essn | 1089-7690 | |
local.bibliographicCitation.issue | 14 | |
local.bibliographicCitation.startpage | 144311 | |
local.identifier.doi | 10.1063/1.4897326 | |
local.identifier.absseo | 970102 | |
dc.date.updated | 2015-12-11T09:09:29Z | |
local.identifier.scopusID | 2-s2.0-84907963753 | |
local.identifier.thomsonID | 000343988500021 | |
Collections | ANU Research Publications |
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