Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...429l...1h&link_type=abstract
The Astrophysical Journal, vol. 429, no. 1, pt. 2, p. L1-L4
Astronomy and Astrophysics
Astronomy
40
Hubble Space Telescope, Image Processing, Image Reconstruction, Quasars, Radio Astronomy, Barred Galaxies, Elliptical Galaxies
Scientific paper
Early images were taken with the optically corrected WFPC2 camera of the Hubble Space Telescope of the low-redshift quasars(QSOs) 1229+204 and 2141+175, which are radio-quiet and radio-loud, respectively. We discuss image restoration on the data. The objects were chosen on the basis of structure seen with 0.5 sec resolution with the Canada-France-Hawaii-Telescope (CFHT) high-resolution camera (HRCAM). 1229+204 was known to be a barred spiral with an asymmetrical extra blue feature: this is now resolved into a ring of knots which are probably young stellar populations in the tidal debris of a small gas-rich companion. There are also shell-like structures along the bar. 2141+175 has a faint smooth curved tidal arm without knots which extends on both sides of a compact elliptical-shaped central galaxy. There is also a short jetlike feature emerging from the nucleus. We discuss the properties and implications of these morphological details.
Conway Morris Simon
Hanisch Robert J.
Holtzman Jon
Hutchings John B.
Mo Jianhua
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