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The Large-Scale Variations of Quasi-Stellar Objects
Published online by Cambridge University Press: 14 August 2015
Extract
The proposition for consideration is:
A QSO is an approximately standard object: it has an approximately standard history consisting mainly of an increase of optical brightness to a very high peak, and a subsequent decline. I suggest that the history has a relevant duration of about 106 yr, and that the total increase of brightness is by a factor about 103, while the mean brightness is of the order of 1% of the peak brightness (so that the peak is rather sharp).
- Type
- Research Article
- Information
- Symposium - International Astronomical Union , Volume 44: External Galaxies and Quasi-Stellar Objects , 1972 , pp. 283 - 284
- Copyright
- Copyright © Reidel 1972
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