Papers on Fe II UV spectra

by Sveneric G. Johansson (from Lund Univ.)

Reverse chronological order (Except for the first paper)

  1. Johansson,S., Litzén,U.: 1980, J.Phys.B: Atom.Molec.Phys. 13, L253. Possibilities of obtaining laser action from singly ionized iron group elements through charge transfer in hollow cathode lasers.
  2. Johansson,S., Brage,T., Leckrone,D.S., Nave,G., Wahlgren,G.M.: 1995, ApJ. 446, 361. Interpretation of anomalous UV transitions of Fe II observed in laboratory FTS and stellar HST and IUE spectra.
  3. Hamann,F., DePoy,D.L., Johansson,S., Elias,J.: 1994, ApJ. 422, 626. High resolution 6450 to 24500 Ĺ spectra of eta Carinae.
  4. Hamann,F.W., Ferland,G., Johansson,S.: 1993, Bull. AAS 24, 1174. Lyman alpha pumping of Fe II in Quasars and AGN.
  5. Rosberg,M., Johansson,S.: 1992, Physica Scripta 45, 590. Analysis of a 4f-5g supermultiplet of Fe II around 1 micrometer.
  6. Feibelman,W.A., Bruhweiler,F.C., Johansson,S.: 1991, ApJ. 373, 649. Ultraviolet high-excitation Fe II fluorescence lines excited by O VI, C IV and H I resonance emission as seen in IUE spectra.
  7. Johansson,S., Rosberg,M., Hamann,F.: 1991, in Jaschek,C., Andrillat,Y. (eds) "The infrared spectral region of stars", (Cambridge University Press) p. 107, Identification of new 14 eV Fe II lines in the near-infrared spectrum of LkHalpha 101,
  8. Baschek,B., Johansson,S.: 1990, J.Quant.spectrosc.Radiat.Transfer 44, 215. Fe II lines from laboratory and astrophysical sources.
  9. Baschek,B., Johansson,S.: 1988, in Viotti,R. et al (eds) "Physics of Formation of Fe II Lines Outside LTE", p.35, New laboratory recordings of Fe II in the IUE region.
  10. Johansson,S., Baschek,B.: 1988, Nucl.Instr.Methods B31, 222. Term analysis of complex spectra: New experimental data for Fe II.
  11. Johansson,S.: 1988, ApJ. 327, L85. Indirect IUE observation of O VI from photoexcited fluorescence lines of Fe II, present in the spectrum of RR telescopii.
  12. Johansson,S., Carpenter,K.G.: 1988, in "A Decade with UV Astronomy with IUE", Proc. Celebratory Symposium, GSFC, Greenbelt, USA, ESA SP-281, Vol. 1, p. 361., (see also) Identification of new fluorescence processes in the UV spectra of cool stars from new energy levels of Fe II and Cr II.
  13. Johansson,S.: 1988, in Viotti,R. et al (eds) "Physics of Formation of Fe II Lines Outside LTE", p.13, The laboratory spectrum and atomic structure of Fe II.
  14. Johansson,S., Hansen,J.E.: 1988, in Viotti,R. et al (eds) "Physics of Formation of Fe II Lines Outside LTE", p.235, On the excitation of the Fe II multiplet UV 191 in stellar spectra.
  15. Johansson,S.: 1988, in Viotti,R. et al (eds) "Physics of Formation of Fe II Lines Outside LTE", p.313, Future laboratory work on Fe II.
  16. Adam,J., Baschek,B., Johansson,S., Nilsson,A.E., Brage,T.: 1987, ApJ. 312, 337. Ultraviolet doubly excited Fe II lines in the laboratory and in the A-type star 21 Pegasi.
  17. Brage,T., Nilsson,A.E., Johansson,S., Baschek,B., Adam,J.: 1987, J.Phys. B20, 1153. Accidental degeneracy of doubly excited states in Fe II.
  18. Johansson,S.: 1987, Physica Scripta 36, 99. On regularities in complex spectra of iron group elements and their dominance in stellar spectra.
  19. Johansson,S., Hansen,J.E.: 1986, in Viotti,R. (ed) "Physics of Formation of Fe Lines Outside LTE", Proc. of the IAU Coll No 94 (Reidel). On the excitation of the Fe II multiplet UV 191 in stellar spectra.
  20. Johansson,S.: 1984, Physica Scripta T8, 63. A comparison between the observed and predicted Fe II spectrum in different plasmas.
  21. Johansson,S.: 1984, Proc. 4th European IUE Conf. ESA SP-218, 307. New Fe II lines in IUE spectra of stars.
  22. Johansson,S., Jordan,C.: 1984, MNRAS. 210, 239. Selective excitation of Fe II in the laboratory and late type stellar atmospheres.
  23. Johansson,S., Cowley,C.R.: 1984, AA. 139, 243. The identification of high-level transitions of Fe II in stellar spectra.
  24. Johansson,S.: 1983, MNRAS. 205, 71 P. Strong Fe II fluorescence lines in RR Tel and V 1016 Cyg excited by C IV and a Bowen mechanism.
  25. Johansson,S., Litzén,U., Lundin,L., Mannervik,S.: 1981, Physica Scripta 24, 30. Beam-foil lifetime measurements of some Fe II energy levels.
  26. Jordan,C., Judge,P., Johansson,S.: in Doschek (ed), Proc. IAU Symposium 84. Ultraviolet spectroscopy of cool stars from IUE.
  27. Johansson,S.: 1978, Physica Scripta 18, 217. The spectrum and term system of Fe II.
  28. Johansson,S.: 1978, MNRAS. 184, 593. Absorption lines in Sgr identified as high-level transitions of Fe II.
  29. Johansson,S.: 1977, MNRAS. 178, 17P. New Fe II identifications in the infrared spectrum of Eta Carinae.
  30. Johansson,S.: 1977, ApJ. 212, 923. Newly identified Fe II lines in the solar limb spectrum.
  31. Johansson,S.: 1977, Physica Scripta 15, 183. Forbidden transitions of Fe II.
All papers by Sveneric G. Johansson (1978-1995)

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