Near-infrared spectroscopy of powerful compact steep-spectrum radio sources

Details Near-infrared spectroscopy of powerful compact steep-spectrum radio sources Near-infrared spectroscopy of powerful compact steep-spectrum radio sources

2003-09-02

arxiv.org/abs/astro-ph/0309055v1

Mon.Not.Roy.Astron.Soc.346:1009,2003

Astronomy and Astrophysics

Astrophysics

Accepted by MNRAS

Scientific paper

10.1111/j.1365-2966.2003.07155.x

We have obtained near-infrared spectroscopy of a small sample of powerful Compact Steep-Spectrum (CSS) radio sources mainly, but not exclusively, from the 3CR sample. We find no differences between the distributions in the equivalent width and luminosity of the [OIII] 5007A line for our sample and other larger, presumably older, high-redshift 3C objects, suggesting that the underlying quasar luminosity remains roughly constant as quasars age. We also find a possible broad line in 3C241, adding to recent evidence for broad lines in some radio galaxies.

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