Essential properties of the cD galaxy in Abell 1795. I - General optical and X-ray structure, dynamics, and formation

Details Essential properties of the cD galaxy in Abell 1795. I - General optical and X-ray structure, dynamics, and formation Essential properties of the cD galaxy in Abell 1795. I - General optical and X-ray structure, dynamics, and formation

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992an....313...21b&link_type=abstract

Astronomische Nachrichten (ISSN 0004-6337), vol. 313, no. 1, 1992, p. 21-33

Astronomy and Astrophysics

Astrophysics

2

Active Galactic Nuclei, Brightness Distribution, Cooling Flows (Astrophysics), Galactic Clusters, Galactic Evolution, Galactic Structure, Interacting Galaxies, Optical Properties, Radio Jets (Astronomy), X Ray Astronomy, Galactic Radio Waves, Isophotes, Light Emission, Star Formation

Scientific paper

Current problems connected with the formation of cD galaxies are investigated, with special attention given to a comparison of the internal properties of the cD galaxy Zw162010 with cluster properties of Abell 1795. Commonly valid essential correlations are explored between peculiarities of the brightest cluster members as structures and active phenomena and global cluster properties such as galaxy populations and concentration degrees. The colors, the X-ray emission, and the velocity of the cD galaxy are used to discuss the obvious influence of the environment on the evolution of the active nucleus. The radio structure is used to investigate the influence of the surrounding cluster medium on the development of the active nucleus. A quantitative investigation of two scenarios for jet interaction with the surrounding interstellar/intercluster medium in 4C 26.42 gives parameter values in reasonable agreement with the ones discussed in the literature.

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