Content of the near-ultraviolet spectrum of Alpha Cygni (A2 Ia)

Details Content of the near-ultraviolet spectrum of Alpha Cygni (A2 Ia) Content of the near-ultraviolet spectrum of Alpha Cygni (A2 Ia)

Oct 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...217..488u&link_type=abstract

Astrophysical Journal, Part 1, vol. 217, Oct. 15, 1977, p. 488-493.

Astronomy and Astrophysics

Astronomy

3

Near Ultraviolet Radiation, Stellar Spectra, Supergiant Stars, Ultraviolet Astronomy, Absorption Spectra, Abundance, Oao 3, Tables (Data)

Scientific paper

The near-UV spectrum of Alpha Cygni, as recorded over the wavelength range from 2000 to 3017 A by the V2 spectrometer aboard Copernicus, is studied. The species which may present in the spectrum are reviewed, and determinations are made of those atomic and ionic species that are definitely, probably, or positively present and those that are not present. It is noted that some of the species found to be absent in the near-UV spectrum of Alpha Cygni are observed in other spectral regions where they have intrinsically strong lines from levels of low excitation.

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