Oct 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...345l..13m&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 345, Oct. 1, 1989, p. L13-L16.
Other
41
Quasars, Spectrophotometry, Ultraviolet Radiation, Color-Color Diagram, Spectral Energy Distribution, X Ray Spectra
Scientific paper
The recent emphasis on big bumps dominating the UV continuum of quasars has obscured the facts that bump properties vary widely and that there are objects in which no such component is evident. As part of a survey of quasar continuum spectra, a class of quasars is identified in which the optical-UV continuum big bump feature appears to be weak or absent, relative to both IR and X-ray. These weak bump quasars are otherwise normal objects and constitute a few percent of the quasar population.
Bechtold Jill
Elvis Martin
Green Richard F.
McDowell Jonathan C.
Oey Sally M.
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