Radio two-color diagram for QSOs, spiral galaxies, and BL Lac objects. [redshift dependence, dispersion, mean spectral index]
Journal Article
·
· Astron. J.; (United States)
OSTI ID:7175663
A radio ''color---color'' diagram is presented for 311 QSOs with known redshifts, 26 BL Lacertae-type objects, and 75 spiral galaxies. The spiral galaxies and BL Lac objects are found to cluster in two different almost mutually exclusive regions of the radio two-color diagram. The QSOs display a greater dispersion in their spectra and the dispersion appears to increase with redshift. The mean spectral index i /of the QSOs indicates a flatter spectrum with increasing (AIP)
- Research Organization:
- Ohio State University Radio Observatory, Columbus, Ohio 43210
- OSTI ID:
- 7175663
- Journal Information:
- Astron. J.; (United States), Journal Name: Astron. J.; (United States) Vol. 81:8; ISSN ANJOA
- Country of Publication:
- United States
- Language:
- English
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