Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Lars Åke Svensson"'
Autor:
Lars Åke Svensson
Publikováno v:
Physica Scripta. 13:235-239
By means of a 3-m normal-incidence spectrograph the following transitions of Ti V have been observed: 3d-4p (66 lines in the region 440-580 Å), 4s-4p (27 lines, 1 250-2 400 Å), 4p-5s (19 lines, 800-1 000 Å), 4p-4d (52 lines, 1 000-1 500 Å). In ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06b2a77ed8b7768f00f5050c70b7b733
https://doi.org/10.1088/0031-8949/13/4/007
https://doi.org/10.1088/0031-8949/13/4/007
Publikováno v:
Solar Physics. 34:173-179
The levels of the configuration 3s 23 p 53d of Fe ix have been experimentally determined from their combinations with 3s3 p 63d 3 D in the region 300–400 A. Wavelengths can now be accurately predicted for all transitions within 3s 23 p 53d, and eig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f69eaeb4ce492557606b79854161624b
https://doi.org/10.1007/bf00149608
https://doi.org/10.1007/bf00149608
Publikováno v:
Physica Scripta. 13:293-307
New measurements and identifications of the transitions 3s 23pk -3s3p k+1 have been made in the spectra of S IV, K IV-VII, Ca V-VIII, Sc VI-IX, Ti VII-X, V VII-XI, Cr VIII-XI, Mn IX-XI, and Fe X, XI. The energy parameters of the ground configurations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b26e8280f5777ba1d5a8c6015298deb3
https://doi.org/10.1088/0031-8949/13/5/006
https://doi.org/10.1088/0031-8949/13/5/006
Autor:
Jan Olof Ekberg, Lars Åke Svensson
Publikováno v:
Physica Scripta. 2:283-297
An isoelectronic comparison of spectra in the P I, Si I and Al I sequences has been made for the elements K, Ca, Sc and Ti. In the course of this study we have also identified some lines in the spectra of adjacent elements in the same sequences, for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10f199a492e79958c58ca4a2bc5328df
https://doi.org/10.1088/0031-8949/2/6/008
https://doi.org/10.1088/0031-8949/2/6/008
Autor:
Lars Åke Svensson
Publikováno v:
Solar Physics. 18:232-243
The level intervals in the ground configurations 3s23pk(k = 2, 3, 4) have been studied through the isoelectronic sequences up to Ni. Semiempirical expressions for the parameters F2(pp) and ζp, are derived from observed data and the intervals are rec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56d3a1bdb357e41791cb2ed88ff49286
https://doi.org/10.1007/bf00145936
https://doi.org/10.1007/bf00145936
Autor:
Rikard Smitt, Lars Åke Svensson
Publikováno v:
Physica Scripta. 27:364-366
The astrophysically important configuration 3s23p53d has been determined for Mn VIII and Fe IX by means of about 60 lines, classified as combinations 3s23p6-3s23p5 3d and 3s23p53d-3s3p63d. We also introduce a sensitive method for isoelectronic compar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d768d2f13eb679439caeef7b0a829f1a
https://doi.org/10.1088/0031-8949/27/5/006
https://doi.org/10.1088/0031-8949/27/5/006
Autor:
Lars Åke Svensson
Publikováno v:
Physica Scripta. 4:111-112
The transitions 3s23pk-3s3pk+1 have been measured in Ti VI (k = 5) and Ti VII (k = 4). In Ti VI the observed ground-term interval is found to be 5 829.3±1.1 cm-1. A four-parameter formula, expressing the Z-dependence of this interval, has been deriv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a7943cbbf3c5e11163dbc27ffab1cf9
https://doi.org/10.1088/0031-8949/4/3/004
https://doi.org/10.1088/0031-8949/4/3/004
Autor:
Lars Åke Svensson
Publikováno v:
Physica Scripta. 6:175-176
A new three-electrode light source, the hollow spark, has been developed by combining an open vacuum spark and a sliding spark. Its design and qualities are described and compared to other spark sources.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::506daa1b114c1d264ef597fa93e31f0f
https://doi.org/10.1088/0031-8949/6/2-3/014
https://doi.org/10.1088/0031-8949/6/2-3/014
Autor:
Lars Åke Svensson
Publikováno v:
Physica Scripta. 1:246-246
Twelve lines in the region 20-100 Å, belonging to the resonance series of Be III, B IV, C V and O VII, have been remeasured by using plates taken by Tyrén. Wavelengths are given to four decimal places.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b03b9546a0c93fed995d263727e1e986
https://doi.org/10.1088/0031-8949/1/5-6/009
https://doi.org/10.1088/0031-8949/1/5-6/009