Zobrazeno 1 - 10
of 24
pro vyhledávání: '"H E Saraph"'
Autor:
P. J. Storey, H. E. Saraph
Publikováno v:
Astronomy and Astrophysics Supplement Series. 134:369-375
This is the third paper in a series giving collision rates for electron excitation of the 2 P o 1 2 P o 3 2 ground state ne-structure transition in aluminium- like ions. In this paper we give data for the tran- sitions in P iii (17.9 m), S iv (10:5 m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd44a674a769a591cb837de89ce985d3
https://doi.org/10.1051/aas:1999437
https://doi.org/10.1051/aas:1999437
Autor:
F. Bely-Dubau, Loic Journel, Alan Hibbert, F. J. Wuilleumier, L. Voky, B. Rouvellou, Jean-Marc Bizau, H. E. Saraph, Denis Cubaynes, P. Faucher
Publikováno v:
Physical Review A. 57:4432-4451
Recent measurements of the photoionization of Na by ejection of a $3s,$ $2p,$ or $2s$ electron give branching ratios, \ensuremath{\beta} parameters, and absolute partial cross sections for a number of excitation processes, allowing one to perform the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16fe92db8215c0ed9a09854cc707937d
https://doi.org/10.1103/physreva.57.4432
https://doi.org/10.1103/physreva.57.4432
Publikováno v:
Astronomy and Astrophysics Supplement Series. 129:161-172
The collision strength ( 2 P o=2 ; 2 P o=2 )f or the ne structure transition within the ground term of 17 fluorine-like ions from Mg iv to Ni xx is calculated using the R-matrix method. We include target terms withn =3 in order to take account of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a33a1815eb809134946f84ee35b5d902
https://doi.org/10.1051/aas:1998394
https://doi.org/10.1051/aas:1998394
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 25:4409-4425
Experimental and theoretical data for energy levels and radiative transitions in Fe VIII and Fe VII are very scarce. The authors' study is a first attempt to present a comprehensive set of data, using an ab initio target representation. The close cou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05e1aefbbcac25827e58948fa75d6200
https://doi.org/10.1088/0953-4075/25/21/009
https://doi.org/10.1088/0953-4075/25/21/009
Publikováno v:
Physical review. A, Atomic, molecular, and optical physics. 46(7)
K-shell photoionization cross sections for Be were caculated by the R-matrix method in a close-coupling approximation using 16-, 17-, and 29-term target representations. Extensive configuration mixing was used to represent the target states so that t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e72ed86c7af3cee886ec936ae307276
https://pubmed.ncbi.nlm.nih.gov/9908590
https://pubmed.ncbi.nlm.nih.gov/9908590
Publikováno v:
Journal of Physics A: Mathematical and General (1975-2006)
Journal of Physics A: Mathematical and General (1975-2006), 2009, 42, pp.5501. ⟨10.1088/1751-8113/42/44/445501⟩
Journal of Physics A: Mathematical and General (1975-2006), 2009, 42, pp.5501. ⟨10.1088/1751-8113/42/44/445501⟩
International audience; The polarization of radiation emitted in spectral lines provides an important diagnostic tool when the relationship between the mechanisms that excite the atomic or molecular energy levels and the polarization is understood. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc8ee1c7f87df2f1ed3cb50be6ab8543
https://doi.org/10.1088/1751-8113/42/44/445501
https://doi.org/10.1088/1751-8113/42/44/445501
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 21:3669-3683
Bound-state energies, oscillator strengths and photoionisation cross sections have been calculated for members of the lithium isoelectronic sequence with nuclear charge Z in the range 3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb07f29e6066b5bccccbd3af106a63fc
https://doi.org/10.1088/0953-4075/21/22/006
https://doi.org/10.1088/0953-4075/21/22/006
Autor:
H E Saraph
Publikováno v:
Journal of Physics B: Atomic and Molecular Physics. 13:3129-3148
Close-coupling calculations were performed to obtain wavefunctions for the O4++e scattering problem with incident energies between -5.667 and +0.95 Ryd. This energy range covers bound states and quasi-bound states of the O3+ ion from 2s22p2P0 to 2p2(
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47b30203d8358562cdf0c272b4e5be45
https://doi.org/10.1088/0022-3700/13/16/011
https://doi.org/10.1088/0022-3700/13/16/011
Autor:
A K Pradhan, H E Saraph
Publikováno v:
Journal of Physics B: Atomic and Molecular Physics. 10:3365-3376
Accurate bound-state wavefunctions obtained by the close-coupling method in the frozen-cores approximation are used to calculate oscillator strengths for neutral oxygen. Results include transition probabilities for all terms of O I (excited and groun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db8828d8932c0f67feca7d8418fe9cf4
https://doi.org/10.1088/0022-3700/10/17/010
https://doi.org/10.1088/0022-3700/10/17/010
Autor:
H E Saraph
Publikováno v:
Journal of Physics B: Atomic and Molecular Physics. 9:2379-2383
The integro-differential equations for electron-ion scattering processes are solved for bound-state energies of the compound system, a method called frozen-cores approximation when introduced by Wilson and Seaton (1972). The solutions are used to cal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3c1105ed4f64e9e87518135ac29a989
https://doi.org/10.1088/0022-3700/9/14/008
https://doi.org/10.1088/0022-3700/9/14/008