Fe+ column density and line opacities of the UV2 multiplet of Fe bt II in laboratory and peculiar stellar sources in laboratory and peculiar stellar sources

Details Fe+ column density and line opacities of the UV2 multiplet of Fe bt II in laboratory and peculiar stellar sources in laboratory and peculiar stellar sources Fe+ column density and line opacities of the UV2 multiplet of Fe bt II in laboratory and peculiar stellar sources in laboratory and peculiar stellar sources

Nov 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...363..343v&link_type=abstract

Astronomy and Astrophysics, v.363, p.343-348 (2000)

Astronomy and Astrophysics

Astrophysics

2

Atomic Data, Line: Formation, Methods: Data Analysis, Stars: Emission-Line, Be, Stars: Individual: Kq Pup, Stars: Individual: Rr Tel

Scientific paper

The Self-Absorption Curve method has been applied to the UV2 multiplet a6D-z6Fo of Fe ii observed in the laboratory and in emission-line stars. For the laboratory observations line opacities of this multiplet were obtained using various sets of atomic data. The best fit is obtained using data by Bergeson et al. (1996), which provide line opacities that are in remarkable agreement with results by Kastner (1999a), derived using independent methods. A value of 7.3x 1012 cm-2 for the Fe+ column density is derived for the laboratory source, and lower limits of 2.1x 1015 and ~ 2x 1017 cm-2 are obtained for the peculiar stars KQ Pup and RR Tel, respectively. Based on observations made with the International Ultraviolet retrieved from the IUE archive.}

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