Results 161 to 167 of about 6,096 (167)
Some of the next articles are maybe not open access.
Seyfert Galaxies in the Universe
1986Recent optical spectroscopy of Seyfert galaxies, particularly at Lick Observatory, is discussed. The frame of reference is the luminosity function of Seyfert galaxies, the incompleteness of available surveys, and how complete samples can be found by combining several different types of surveys.
openaire +1 more source