Are weak bump quasars edge-on sources?

Details Are weak bump quasars edge-on sources? Are weak bump quasars edge-on sources?

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993chsbu..38...50w&link_type=abstract

Chin. Sci. Bull., Vol. 38, No. 1, p. 50 - 53

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The "big bump" is one of the most striking features of the spectral energy distribution of quasars. However, McDowell et al. revealed a few quasars with a weak bump or without a bump when they studied the broad-band energy distribution (100 μm to 4 keV) of 31 quasars. By excluding the possibilities of reddening and contamination of starlight, they argued that these objects are intrinsic weak bump quasars, but they did not give any explanation. Motivated by why these objects are different from others, the authors of this paper have studied their UV spectra. Their results suggest that the weak bump quasars may be edge-on sources.

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