Abstract
view Abstract Citations (13) References (15) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS IUE observations of the Seyfert 1.9 galaxy Markarian 423. Rudy, R. J. ; Cohen, R. D. ; Puetter, R. C. Abstract UV observations of the Seyfert 1.9 galaxy Markarian 423 show a moderately strong UV continuum in the 1200-2000 A region, a strong narrow Lyman-alpha conponent, and no detectable broad lines. This absence of broad UV lines, in conjunction with the steep broad line Balmer decrement, indicates that the gas giving rise to the broad emission lines is significantly reddened. An upper limit on the equivalent width of the broad Lyman-alpha component suggests that the reddening of the broad line region is greater than that of the interstellar continuum, which furnishes evidence of local dust concentration. Publication: The Astrophysical Journal Pub Date: January 1985 DOI: 10.1086/184415 Bibcode: 1985ApJ...288L..29R Keywords: Seyfert Galaxies; Ultraviolet Spectra; Balmer Series; H Lines; Interstellar Extinction; Interstellar Gas; Iue; Lyman Alpha Radiation; Visible Spectrum; Astrophysics full text sources ADS | data products NED (2) SIMBAD (1) MAST (1) INES (1)
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