Computer Science
Scientific paper
Aug 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989sccha..32..970c&link_type=abstract
Science in China, Series A, Vol. 32, No. 8, p. 970 - 982
Computer Science
Reddening: Quasars, Reddening: Seyfert Galaxies, Balmer Lines: Quasars, Balmer Lines: Seyfert Galaxies
Scientific paper
The authors compile the observed intensity ratios of the Balmer lines for low redshift quasars and Seyfert 1 galaxies. In the framework of the Cerenkov line emission theory, the authors compare the theoretical intensity ratios with those of observations, and find that the observed intensity ratios for the radio-loud quasars and the Seyfert 1 galaxies are nearer to the theoretical expectation than those for the radio-quiet sources. The fact that the reddening of the Seyfert galaxies is more serious than quasars shows that the Seyfert galaxies have more dust than quasars.
Cheng Fu-Hua
Cheng Fu-zhen
Shan Luo
You Jun-Han
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