On the excitation of CH microwave lines
| dc.contributor.author | Bujarrabal, V. | |
| dc.contributor.author | Gonzalo Fonrodona, Isabel | |
| dc.contributor.author | Salinas, F. | |
| dc.date.accessioned | 2023-06-21T02:08:45Z | |
| dc.date.available | 2023-06-21T02:08:45Z | |
| dc.date.issued | 1984-10-01 | |
| dc.description | © 1984 The American Astronomical Society | |
| dc.description.abstract | Along with the very frequent occurrence of every CH 9 cm line inversion, CH radio observations also show the existence of antother almost universal characteristic of thes lines’s excitation: the overexcitation of the satellite F = 0→ 1 line. Attempts to explain this fact, by means of quite a wide sample of local and nonlocal models as presented here, failed when line overlap was not taken into account. As will be shown, the overlap of two components (F=2^+ → 1^- and F=1^+→1^-) of the ^2π_1/2 J=3/2→J=1/2 rotational transition leads to the above-mentioned satellite-line anomalies. The numerical results are in reasonable agreement with the observations, and the mechanism satisfies the requirement of universality. | |
| dc.description.department | Depto. de Óptica | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/30008 | |
| dc.identifier.doi | 10.1086/162507 | |
| dc.identifier.issn | 0004-637X | |
| dc.identifier.officialurl | http://dx.doi.org/10.1086/162507 | |
| dc.identifier.relatedurl | http://iopscience.iop.org/ | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/64973 | |
| dc.issue.number | 1 | |
| dc.journal.title | Astrophysical journal | |
| dc.language.iso | eng | |
| dc.page.final | 321 | |
| dc.page.initial | 312 | |
| dc.publisher | American Astronomical Society | |
| dc.rights.accessRights | open access | |
| dc.subject.cdu | 535 | |
| dc.subject.keyword | Astronomy | |
| dc.subject.keyword | Astrophysics | |
| dc.subject.ucm | Óptica (Física) | |
| dc.subject.unesco | 2209.19 Óptica Física | |
| dc.title | On the excitation of CH microwave lines | |
| dc.type | journal article | |
| dc.volume.number | 285 | |
| dcterms.references | Bernes, C. 1978, Stockholm Obs. Rept., No. 15. --. 1979, Astr. Ap., 73, 67. Bertojo, M., Cheung, A. C., and Townes, C. H. 1976, Ap. J., 208, 914. Bouloy, D., and Omont, A. 1977, Astr . Ap., 61, 405. Bujarrabal, V., and Nguyen-Q-Rieu 1980, Astr. Ap., 91, 283. Castor, J. l. 1970, M .N .R.A.S ., 149, 111. Dewangan, D. P., and Flower, D. R. 1982, M .N .R.A.S ., 199, 457. Dixon, R. N., and Field, D. 1979a, Proc. Roy. Soc. London, A, 368, 99. --. 1979b, M .N .R.A.S., 189, 583. Elitzur, M. 1976, Ap.J., 203, 124. --. 1977, Ap. J., 281, 677. Goss, W. M., and Field , G. B. 1968, Ap. J ., 151, 177. Guibert, J., Elitzur, M., and Nguyen-Q-Rieu. 1978, Astr. Ap., 66, 195. Levy, D. H., and Hinze, J . 1975, Ap. J., 200, 236. Litvak, M. M. 1969, Ap. J ., 156, 471. Rogers, A. E. E., and Barrett, A. H. 1968, Ap. J., 151, 163. Rydbeck , O. E. H., Kollberg, E., Hjalmarson , A., Sume, A., Elldér, J., and lrvine, W. M. 1976, Ap. J. Suppl., 31, 333. Varshalovich , D. A., and Khersonsky, V. K. 1977, Ap. Letters, 18, 167. Whiteoak, J. B., Gardner, F. F., and Sinclair, M. W. 1978, M .N.R.A.S ., 184, 235. Zuckerman, B., and Turner, B. E. 1975, Ap. J ., 197, 123. | |
| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | c1ad80a2-9d2c-49ce-b112-8e3dfa47d18c | |
| relation.isAuthorOfPublication.latestForDiscovery | c1ad80a2-9d2c-49ce-b112-8e3dfa47d18c |
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