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Simultaneous Observations of Seyfert 1 Galaxies by IUE, ROSAT and GINGA

1994; Cambridge University Press; Volume: 159; Linguagem: Inglês

10.1017/s0074180900175357

2352-2186

A. Orr, R. Walter, T. J. L. Courvoisier, H. H. Fink, F. Makino, Chiko Otani, W. Wamsteker,

History and Developments in Astronomy

Simultaneous observations of 8 Seyfert 1 type AGN (Fairall-9, Mrk 590, NGC 4051, 3C 273, NGC 5548, Mrk 841, Q 1821+643 and 3C 390.3) obtained with ROSAT and IUE (RIASS program), and for 5 sources (Fairall-9, NGC 4051, 3C 273, Mrk 841 and Q 1821+643) with Ginga , have been analysed with the aim of describing the UV to soft X-ray spectral component in these sources.