Spectrophotometry of three high-redshift radio galaxies - 3C 6.1, 3C 265, and 3C 352

Astronomy and Astrophysics – Astronomy

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Astronomical Spectroscopy, Emission Spectra, Radio Galaxies, Red Shift, Spectrophotometry, Elliptical Galaxies, Galactic Radiation, Line Spectra, Luminous Intensity, Optical Emission Spectroscopy, Radio Astronomy

Scientific paper

Redshifts and spectrophotometry have been obtained for the high-redshift radio galaxies identified with 3C 6.1, 3C 265, and 3C 352, which have redshifts of z = 0.840, 0.811, and 0.806, respectively. 3C 265 has a very rich strong emission-line spectrum, a nonthermal optical continuum, and a disturbed appearance on deep direct photographs. 3C 6.1 and 3C 352, while also having emission-line spectra, appear to show stellar galaxy continua as well. The rest-frame U - B colors of 3C 6.1 and 3C 352 are bluer than the integrated colors of nearby elliptical galaxies, suggesting color evolution over the 8 billion year look-back time to z = 0.8.

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