Redshift cutoff and evolution of QSOs |
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| Authors: | Liu Yulin |
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| Institution: | (1) Beijing Astronomical Observatory, Chinese Academy of Sciences, China |
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| Abstract: | In this paper I present a new evolution model of QSOs luminosity. The model is based on edges distribution of apparent magnitude-redshift of QSOs. After the quasars were formed, the luminosities were increasing until they attained their maximum value atz=2+a, where –0.1 a0.6, then the luminosities were decreasing. If the QSOs originate from superconducting cosmic string of same initial massM
i
 1012
M
 , the formation epochs are different, most of the quasars start atz
cutoff5.6. The most luminous QSOs start at later epochz
cutoff5.15. The present sky survey echniques may give us the possibility to see the formation of QSOs at apparent magnitudem
V
22.5 by chance of 0.3%. |
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| Keywords: | |
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