Publications of the Astronomical Society of the Pacific, Volume 106, Issues 695-702Astronomical Society of the Pacific, 1994 |
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Page 115
... luminosity , redshift , and spectral energy distributions within the quasar population are taken into account . The situation is compounded by unavoidable correlations between fundamental quantities such as redshift and luminosity in ...
... luminosity , redshift , and spectral energy distributions within the quasar population are taken into account . The situation is compounded by unavoidable correlations between fundamental quantities such as redshift and luminosity in ...
Page 127
... Luminosity Function The understanding of the evolution of the quasar X - ray luminosity function has been revolutionized by the completion of two surveys : the Extended Medium Sensitivity Survey ( EMSS ) , and very deep ROSAT ...
... Luminosity Function The understanding of the evolution of the quasar X - ray luminosity function has been revolutionized by the completion of two surveys : the Extended Medium Sensitivity Survey ( EMSS ) , and very deep ROSAT ...
Page 299
... luminosity to overlap with the stars . Note that the He - burning track is only available for the isochrone at 1.5 Gyr but the trend for isochrones younger than 1.5 Gyr is that the faint luminosity limit of the clump is not strongly age ...
... luminosity to overlap with the stars . Note that the He - burning track is only available for the isochrone at 1.5 Gyr but the trend for isochrones younger than 1.5 Gyr is that the faint luminosity limit of the clump is not strongly age ...
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abundance additional analysis appear associations assumed Astronomical average binary blue bright calibration catalog central clouds cluster color compared correction derived detection determined discussed distance distribution dwarf eclipse effects emission errors estimate et al evidence evolution field Figure flux frame function galaxies giants given groups included increase indices less light limit lines luminosity magnitude mass mean measured MNRAS nebulae noted objects observations obtained optical orbital PASP period phase photometric pixels position possible present probably quasars range ratio reduced reference region relation relative rotation sample scale scatter secondary shown similar sources spectral spectrum standard stars stellar stellar winds suggests surface survey Table telescope temperature tion University values variability velocity wavelength X-ray