Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...311l...1h&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 311, Dec. 1, 1986, p. L1-L5.
Astronomy and Astrophysics
Astrophysics
35
Galactic Clusters, Galactic Nuclei, Intergalactic Media, Quasars, X Ray Sources, Collisions, Cooling, Cooling Flows (Astrophysics), Ionized Gases, Luminosity, Oxygen Ions, Rotating Fluids
Scientific paper
The quasar 3C 275.1 (z = 0.55) was previously shown to lie in a large "rotating" gas cloud (major axis ≈ 100 kpc) at the center of a rich cluster of galaxies. The authors present CCD imaging observations of the 3C 275.1 field using r, v, and redshifted [O II] λ3727 filters. The observations indicate that the quasar host galaxy is extremely large and luminous (MB ≈ -24.3). The host galaxy's luminosity, dimensions, and position at the cluster center suggest that it may be a cD or a "proto-cD". Since the cluster (or quasar) is a strong X-ray source, the authors suggest that the nebulosity observed may be accreted matter from a "cooling flow" of the intracluster medium, and that this flow both powers the quasar nucleus and has induced extensive star formation, thereby accounting for the host galaxy's extreme luminosity and blue color.
Hintzen Paul
Romanishin William
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