Interstellar lines in high resolution IUE spectra of run-away B type stars

Details Interstellar lines in high resolution IUE spectra of run-away B type stars Interstellar lines in high resolution IUE spectra of run-away B type stars

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984esasp.218..161b&link_type=abstract

In ESA Fourth European IUE Conf. p 161-166 (SEE N84-35135 24-88)

Physics

5

B Stars, Interstellar Matter, Line Spectra, Stellar Spectra, Ultraviolet Spectra, Absorption Spectra, Iue, Magnesium

Scientific paper

About 60 interstellar lines were detected in the spectra of three runaway stars situated at large distance above the galactic plane. The lines identified come from: lower ionized species like CI, NI, OI, MgI, SI, CII, SiII, SII, MgII, FeII; higher ionized species such as A1III, SiIII, CIV, SiIV and probably NV. Very saturated ones like the MgII lines suggest the presence of MgII away from the galactic disk. Provisional equivalent widths are given. The possibility of a circumstellar origin for narrow absorption lines is discussed. It is concluded that velocity data provided by the position of the interstellar lines do not support the hypothesis of a physical association with the surroundings of the star.

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