Publications of the Astronomical Society of the Pacific, Volume 106, Issues 695-702Astronomical Society of the Pacific, 1994 |
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Page 128
... evolution parameter , k , such that , k'k - e ( a ) , where k ' is the inferred value of the evolution parameter . Alternatively , note that reaching 0.6 mag fainter into the bright end of the quasar luminosity function , where N ( L ) ...
... evolution parameter , k , such that , k'k - e ( a ) , where k ' is the inferred value of the evolution parameter . Alternatively , note that reaching 0.6 mag fainter into the bright end of the quasar luminosity function , where N ( L ) ...
Page 344
... evolution of planetary nebulae is reviewed . We now recognize that a planetary nebula represents a dynamical system in which evolution is tightly coupled to the evolution of the central star . Not only is the ionization structure of the ...
... evolution of planetary nebulae is reviewed . We now recognize that a planetary nebula represents a dynamical system in which evolution is tightly coupled to the evolution of the central star . Not only is the ionization structure of the ...
Page 351
... evolution . 13. PLANETARY NEBULAE AS DYNAMICAL SYSTEMS We now recognize that a PN is a dynamical system whose nebular evolution is closely coupled to the evolution of the central star . The existence of a planetary nebula depends on the ...
... evolution . 13. PLANETARY NEBULAE AS DYNAMICAL SYSTEMS We now recognize that a PN is a dynamical system whose nebular evolution is closely coupled to the evolution of the central star . The existence of a planetary nebula depends on the ...
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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