Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.212..631w&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 212, Feb. 1, 1985, p. 631-643. NSF-supported research.
Astronomy and Astrophysics
Astronomy
12
Astronomical Spectroscopy, Infrared Astronomy, Radio Sources (Astronomy), Charge Coupled Devices, Classifications, Infrared Photometry, Near Infrared Radiation, Quasars, Red Shift
Scientific paper
The acquisition of CCD frames and extensive near-infrared photometry for radio sources selected from the Jodrell Bank 966-MHz survey has shown that objects not visible on the POSS can be classified. As predicted, many of these sources are high-redshift galaxies, but a substantial number appear to be compact and variable, suggesting that they are related to QSOs. The infrared colours of the objects classified as QSOs are extremely red, lending support to the QSO classification. The large number of QSOs found in this steep-spectrum radio sample brings into question the traditional assumption that such objects will be exclusively high-redshift galaxies.
Elston Richard
Lebofsky Marcia J.
Rieke George H.
Shone D.
Walsh Dave
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