[en] Radiative lifetimes of 6 levels belonging to the 4f(5)((6)Hdegrees, (6)Fdegrees)5d configuration of Sm III have been measured for the first time using a time-resolved laser-induced fluorescence technique. Experimental data have been compared with semi-empirical calculations. The agreement is excellent for 4 levels with (6)Fdegrees as a parent term. Larger discrepancies (53 and 37%) are observed for 2 levels with (6)Hdegrees and (6)Fdegrees, respectively, as a parent term and are explainable by strong mixing and cancellation effects occurring in the line strength calculations which are responsible of "instabilities" occurring in the lifetimes considered as a function of J value within the term. Branching ratios for the lines depopulating the levels of interest have been measured by Fourier transform spectroscopy. A first set of oscillator strengths has been deduced for this ion.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Biémont, Emile ; Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Garnir, Henri-Pierre ; Université de Liège - ULiège > Département de physique > Physique nucléaire
Litzen, U.
Nielsen, K.
Quinet, Pascal ; Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Svanberg, S.
Wahlgren, G. M.
Zhang, Z. G.
Language :
English
Title :
Radiative lifetime and oscillator strength determinations in SmIII
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Bibliography
Aikman, G. C. L., Cowley, C. R., & Crosswhite, H. M. 1979, ApJ, 232, 812.
Bidelman, W. P. 1953, ApJ, 117, 377.
Bidelman, W. P., Coley, C. R., & Iler, A. L. 1985, Wavelength Identification in the Magnetic CP star HR 465 (Publ. Obs. Michigan, USA) Vol. XII, no 3
Biémont, E., Li, Z. S., Palmeri, P., & Quinet, P. 1999, J. Phys. B: At. Mol. Opt. Phys., 32, 3409.
Biémont, E., Garnir, H. P., Bastin, T., et al. 2001a, MNRAS, 321, 481
Biémont, E., Garnir, H. P., Palmeri, P., et al. 2001b, Phys. Rev. A, 64, 022503
Biémont, E., Garnir, H. P., Li, Z. S., et al. 2001c, J. Phys. B: At. Mol. Opt. Phys., 34, 1869
Biémont, E., Palmeri, P., Quinet, P., et al. 2001d, MNRAS, 328, 1085.
Biémont, E., Quinet, P., & Ryabchikova, T. A. 2002a, MNRAS, in press
Biémont, E., Kohnen, G., & Quinet, P. 2002b, A&A, 393, 717
Biémont, E., Garnir, H. P., Quinet, P., Svanberg, S., & Zhang, Z. G. 2002c, Phys. Rev. A, 65, 052502
Brewer, L. 1971, JOSA 61, 1666
Cowan, R. D. 1981, The Theory of Atomic Structure and Spectra (University of California Press, Berkeley, CA, USA)
Cowley, C. R. 1976, ApJS, 32, 631
Cowley, C. R. 1984, Phys. Scr., T8, 28
Cowley, C. R., & Crosswhite, H. M. 1978, PASP, 90, 108
Cowley, C. R., & Greenberg, M. 1988, MNRAS, 232, 763
Cowley, C. R., & Mathys, G. 1998, A&A, 339, 165
Cowley, C. R., Ryabchikova, T. R., Kupla, F., et al. 2000, MNRAS, 317, 299
Danziger, L. 1965, MNRAS, 131, 51
Dupont, A. 1966, The Spectrum of Doubly Ionized Samarium, Ph.D. Thesis, University of Baltimore, USA
Dupont, A. 1967, JOSA, 57, 867
Gilroy, K. K., Sneden, C., Pilachowski, C., & Cowan, J. J. 1988, ApJ, 327, 298
Gopka, V. F., & Komarov, N. S. 1990, Sov. Astron., 34, 610
Griesmann, U., Musielok, J., & Wiese, W. L. 1997, JOSA B, 14, 9
Jaschek, C., & Jaschek, M. 1995, The Behavior of Chemical Elements in Stars (Cambridge University Press, London)
Kiss, Z., & Weakliem, H. A. 1965, Phys. Rev. Lett., 15, 457
Lambert, D. L. 1985, in Cool Stars with Excesses of Heavy Elements, ed. M. Jaschek, & P. C. Keenan (Reidel, Amsterdam)
Li, Z. S., & Jiang, Z. K. 1999, Phys. Scr., 60, 414
Li, Z. S., Lundberg, H., Wahlgren, G. M., & Sikström, C. M. 2000, Phys. Rev. A, 62, 032505
Li, Z. S., Zhang, Z. G., Kokhnygin, V., et al. 2001, J. Phys. B: At. Mol. Opt. Phys., 34, 1349
Martin, W. C., Zalubas, R., & Hagan, L. 1978, Atomic Energy Levels, The Rare-Earth Elements, Nat. Bur. Stand. Ref. Data Ser., 60 (Washington D.C., USA)
Palmeri, P., Quinet, P., Frémat, Y., Wyart, J. F., & Biémont, E. 2000, ApJS, 129, 367
Quinet, P., Palmeri, P., Biémont, E., et al. 1999, MNRAS, 307, 934
Sikström, C. M., Nilsson, H., Litzén, U., Blom, A., & Lundberg, H. 2002, J. Quant. Spectrosc. Radiat. Transfer, 74, 355
Smith, M. A. 1974, ApJ, 189, 101
Sneden, C., McWilliam, A., Preston, G. W., et al. 1996, ApJ, 467, 819
Whaling, W., Carle, M. T., & Pitt, M. L. 1993, J. Quant. Spectrosc. Radiat. Transfer, 50, 7
Zhang, Z. G., Li, Z. S., Lundberg, H., et al. 2000, J. Phys. B: At. Mol. Opt. Phys., 33, 521
Zhang, Z. G., Li, Z. S., Svanberg, S., et al. 2001b, Eur. Phys. J. D, 15, 301
Zhang, Z. G., Persson, A., Li, Z. S., Svanberg, S., & Jiang, Z. K. 2001a, Eur. Phys. J. D, 13, 301
Zhang, Z. G., Somesfalean, G., Svanberg, S., et al. 2002a, A&A, 384, 364
Zhang, Z. G., Svanberg, S., Palmeri, P., Quinet, P., & Biémont, E. 2002b, MNRAS, in press
Zhang, Z. G., Svanberg, S., Palmeri, P., Quinet, P., & Biémont, E. 2002c, A&A, 385, 724
Similar publications
Sorry the service is unavailable at the moment. Please try again later.
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.