Seyfert galaxies with large Z - an electronographic survey

Details Seyfert galaxies with large Z - an electronographic survey Seyfert galaxies with large Z - an electronographic survey

Oct 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977mnras.181..211w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 181, Oct. 1977, p. 211-231. Research supported by the Science Research

Other

27

Astronomical Maps, Electronography, Seyfert Galaxies, Spiral Galaxies, Astronomical Photography, Galactic Structure, Isophotes, Photographic Plates, Resolution

Scientific paper

Electronographic observations (3500-7500 A) of Seyfert galaxies in the range z = 0.022-0.057 are presented in the form of isophotal maps which attain levels of detection not previously reported for these galaxies. The observations include high-resolution isophotal maps of: Markarian 79, 110, 124, 141, 176, 198, 231, 268, 273, 471, 474, 506, and 501 (a BL Lac-type object). The weakest contours attain intensity levels estimated to be 15 percent the sky background (B of approximately 24.5 mag/sq arcsec). Both fine-resolution (about 1 arcsec) and coarse-resolution (approximately 4 arcsec) maps are presented for each object. The majority of the sample (about 60 percent) are probably spiral galaxies, while most of the remainder have jets or other disturbed features.

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