SIMBAD references

1997A&A...326..919M - Astronomy and Astrophysics, volume 326, 919-923 (1997/10-3)

Asymmetric depolarization in double low-luminosity radio galaxies.

MORGANTI R., PARMA P., CAPETTI A., FANTI R. and DE RUITER H.R.

Abstract (from CDS):

To investigate the presence of the Laing-Garrington effect (i.e. the lobe containing the jet more depolarized than that containing the counter-jet), we analyse polarization data at 6 and 20cm for a sample of double low-luminosity radio galaxies. The effect is well visible, although not very strong. We therefore confirm what was inferred in a previous paper based on data at one frequency (20cm) only. Furthermore, we find that radio galaxies with strong radio cores show a more pronounced asymmetry in depolarization. We conclude that the presence of the Laing-Garrington effect in our sample is a indication that relativistic motions do occur on the kpc scale of low-luminosity radio galaxies as recently suggested by theoretical arguments and observational evidence.

Abstract Copyright:

Journal keyword(s): radio continuum: galaxies - galaxies: active - polarization - galaxies: jets

Status at CDS:  

Simbad objects: 47

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2020.05.27-05:45:47

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