High spatial resolution imaging of some of the distant 3CR galaxies

Details High spatial resolution imaging of some of the distant 3CR galaxies High spatial resolution imaging of some of the distant 3CR galaxies

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...331l..73l&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 331, Aug. 15, 1988, p. L73-L76.

Astronomy and Astrophysics

Astrophysics

37

Gravitational Lenses, Image Resolution, Radio Galaxies, Spatial Resolution, Galactic Evolution, Galactic Structure, Red Shift

Scientific paper

Deep, high spatial resolution imaging of several sources from the high-redshift 3CR galaxy sample is presented. Very complex and unexpected morphologies are found. All the galaxies observed so far are resolved, and most of them show multimodal sources. Significant color differences for the components of each galaxy are measured. An interpretation in terms of gravitational amplification/lensing by foreground galaxies or galactic clusters is proposed for 3C 238, 3C 241, and 3C 305.1, 3C 238 being the strongest candidate. The complexity of the 3CR galaxies like 3C 356, which includes a compact object, and 3C 326.1 shows that they are not normal ellipticals and their use as standard candles to test for galaxy evolution is therefore questionable.

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