Abstract
view Abstract Citations (27) References (11) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS High-resolution imaging from Mauna Kea : Cygnus A. Thompson, L. A. Abstract A high-resolution image of Cygnus A was obtained using a computer-controlled active-mirror autoguider. The CCD image, with FWHM = 0.65 arcsec, reveals considerable structure in the central 2 kpc of Cygnus A: an elliptically shaped region that contains the central radio source, a concentrated knot that looks like an extra galaxy nucleus (which appears in the projection within 900 h(-1) pc of the central radio component), and some indication that the central region around the radio source contains a patchy dust distribution. As originally suggested by Baade and Minkowski (1954), Cygnus A is best described as a collision of galaxies. With the improved resolution, Cygnus A shows only cursory resemblance to Centaurus A. Publication: The Astrophysical Journal Pub Date: April 1984 DOI: 10.1086/184253 Bibcode: 1984ApJ...279L..47T Keywords: Elliptical Galaxies; Galactic Nuclei; Radio Sources (Astronomy); Astronomical Observatories; Astronomical Photography; Cygnus Constellation; Astrophysics full text sources ADS | data products SIMBAD (1) NED (1)
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