Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....76..297v&link_type=abstract
Astronomy and Astrophysics, vol. 76, no. 3, July 1979, p. 297-305. In French.
Astronomy and Astrophysics
Astrophysics
9
Astronomical Photometry, Quasars, Electronography, Galactic Nuclei, Graphs (Charts), Numerical Integration, Red Shift, Telescopes
Scientific paper
Results are presented for electronographic observations of the following nearby quasars and related objects: Ton 730 (z equals 0.088), PG 1351 plus 64 (z equals 0.088), Mk 106 (z equals 0.123), Ton 256 (z equals 0.131), NAB 0205 plus 02 (z equals 0.155), and B 340 (z equals 0.184). A nebulosity is detected in each case, despite rather poor seeing conditions. Where accurate measurements are possible, the nebulosities are found to have the nature of large galaxies with rather uniform parameters. Color indices corresponding to either spirals (e.g., Mk 106, PG 1351 plus 64) or ellipticals (Ton 256) are obtained. It is concluded that the objects observed can equally well be considered as Seyfert or N galaxies with very bright nuclei or as moderately bright quasars.
Schneider Jeff
Vanderriest Ch.
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