Other
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.210..239j&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 210, Sept. 1, 1984, p. 239-256. Research supported by t
Other
99
Atomic Excitations, Iron, Late Stars, Stellar Atmospheres, Cool Stars, High Resolution, Lyman Alpha Radiation, Stellar Spectra
Scientific paper
Low resolution spectra of cool giants and supergiants observed with the International Ultraviolet Explorer (IUE) satellite contain emission features for which it has been difficult to establish unambiguous identifications. High resolution spectra of RR Tel and Beta Gru (M 3 II) show lines which can be definitely attributed to Fe II. The presence of particular transitions and absence of others suggests that the source of excitation for levels with excitation energy around 10 eV is emission in the H Ly alpha line which is strong and broad in the cool giants and supergiants. New laboratory spectra confirm the excitation route for Ly alpha pumping to a further 4G0 level at about 13 eV, which decays to give the strong feature at 1870 A observed at low spectral resolution in several cool stars.
Johansson Sara
Jordan Cathy
No associations
LandOfFree
Selective excitation of Fe II in the laboratory and late-type stellar atmospheres does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Selective excitation of Fe II in the laboratory and late-type stellar atmospheres, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selective excitation of Fe II in the laboratory and late-type stellar atmospheres will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1396593