RELATIVE QUASAR LUMINOSITIES DETERMINED FROM EMISSION-LINE STRENGTHS

被引:103
作者
BALDWIN, JA [1 ]
BURKE, WL [1 ]
GASKELL, CM [1 ]
WAMPLER, EJ [1 ]
机构
[1] UNIV CALIF SANTA CRUZ,LICK OBSERV,SANTA CRUZ,CA 95064
关键词
D O I
10.1038/273431a0
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Observations of flat radio spectrum QSOs selected from complete samples confirm the strong correlation between continuum luminosity and emission line equivalent width. The r.m.s. scatter about a mean relationship is about 0.6 mag. The data indicate that the luminosity of QSO emission lines increase as the 1/3 power of the continuum luminosity. Unless the zero point of the relationship between emission line equivalent width and continuum luminosity depends on redshift, both the local hypothesis and zero pressure models of the Universe in which qo ≈ 0 are ruled out by the data at about the 99% confidence level. © 1978 Nature Publishing Group.
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页码:431 / 435
页数:5
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