منابع مشابه
Restarting activity in radio galaxies
We present observations of two radio galaxies, J1835+620 and 3C338, both with signs of having passed through different stages of core activity. The former presents two symmetric and bright components within a typical FR II structure, possibly resulting from two distinct phases of activity; the latter is a FR I radio galaxy with two separated regions with different age properties, possibly due t...
متن کاملA search for molecular gas in restarting radio galaxies
Several radio galaxies are known that show radio morphological signatures that are best interpreted as restarting of nuclear activity after a period of quiescence. The conditions surrounding the phenomenon of nuclear recurrence are not understood. In this paper we have attempted to address this question by examining the nuclear fuelling characteristics in a sample of restarting radio galaxies. ...
متن کاملRestarting activity in the giant radio galaxy J1835+620
We present radio and optical observations of the peculiar radio galaxy J1835+620, a member of a new sample of large angular size radio galaxies selected from the NRAO VLA Sky Survey. Its optical counterpart is in a group of at least three galaxies and shows strong, narrow emission lines which allow us to measure its redshift as z = 0.518. The derived cosmological distance places J1835+620 among...
متن کاملRestarting radio activity and dust emission in radio-loud broad absorption line quasars
1 Max-Planck Institute for Radio Astronomy, Auf dem Hügel 69, 53121 Bonn, Germany e-mail: [email protected] 2 INAF–Istituto di Radioastronomia, via P. Gobetti 101, 40129 Bologna, Italy 3 European Southern Observatory, Alonso de Córdova 3107, Vitacura, Casilla 19001, Santiago de Chile, Chile 4 Netherlands Institute for Radio Astronomy, Postbus 2, 7990 AA Dwingeloo, The Netherlands 5 Kaptey...
متن کاملA Radio Census of Nuclear Activity in Nearby Galaxies
In order to determine the incidence of black hole accretion-driven nuclear activity in nearby galaxies, as manifested by their radio emission, we have carried out a high-resolution Multi-Element Radio-Linked Interferometer Network (MERLIN) survey of LINERs and composite LINER/Hii galaxies from a complete magnitude-limited sample of bright nearby galaxies (Palomar sample) with unknown arcsecond-...
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ژورنال
عنوان ژورنال: New Astronomy Reviews
سال: 2002
ISSN: 1387-6473
DOI: 10.1016/s1387-6473(01)00161-0