1990•Unpublished venueRequires access

The variable ultraviolet absorption lines in the Seyfert 1 galaxy NGC 3516

R. Walter, M. H. Ulrich, T. J.-L. Courvoisier, L. M. Buson

Abstract

Les observations spectroscopiques, par le satellite IUE, de la galaxie de Seyfert de type 1, NGC 3516, sont presentees. Le profil d'absorption de la raie C IV λ1149 est analysee pour 14 epoques differentes de la periode 1978-1989. Une modelisation de la raie d'absorption C IV, considerant une composante etroite et une composante large variable, est realisee.

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Key concepts: Physics, Astrophysics, Galaxy, Absorption (acoustics), Ultraviolet, Spectral line, Astronomy, Galactic nuclei