Relative quasar luminosities determined from emission line strengths

Autor:	W. L. Burke, Jack A. Baldwin, C. Martin Gaskell, E. J. Wampler
Rok vydání:	1978
Předmět:	QSOS Physics Multidisciplinary Astrophysics::High Energy Astrophysical Phenomena Astronomy Quasar Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Cosmology Redshift Radio spectrum Ultraviolet astronomy Emission spectrum Equivalent width Astrophysics::Galaxy Astrophysics
Zdroj:	Nature. 273:431-435
ISSN:	1476-4687 0028-0836
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::37ec92e6c5c651a7f8889930202349c1 https://doi.org/10.1038/273431a0 Zobrazit plný text záznamu