SIMBAD references

2004A&A...414..927H - Astronomy and Astrophysics, volume 414, 927-929 (2004/2-2)

Bgg revisited: The environments of low-excitation radio galaxies and unified models.

HARDCASTLE M.J.

Abstract (from CDS):

Recent measurements of the galaxy clustering environments around intermediate-redshift radio sources have suggested a systematic environmental difference between radio galaxies and radio-loud quasars, in contradiction to the predictions of simple unified models for the two classes of object. I show that the apparent difference arises mainly as a result of the properties of low-excitation radio galaxies included in the radio-galaxy sample, which tend to lie in significantly richer environments. The environmental properties of high-excitation radio galaxies and quasars are statistically consistent in the redshift range 0.15<z<0.4, as unified models would predict.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: quasars: general - galaxies: clusters: general - radio continuum: galaxies

Simbad objects: 16

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2020.09.21-10:02:27

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