CCD surface photometry of the low-luminosity radio galaxies containing radio jets B2 0034 + 25 and B2 0206 + 35

Details CCD surface photometry of the low-luminosity radio galaxies containing radio jets B2 0034 + 25 and B2 0206 + 35 CCD surface photometry of the low-luminosity radio galaxies containing radio jets B2 0034 + 25 and B2 0206 + 35

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...249...75g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 249, no. 1, Sept. 1991, p. 75-87.

Astronomy and Astrophysics

Astronomy

10

Astronomical Photometry, Charge Coupled Devices, Luminosity, Radio Galaxies, Radio Jets (Astronomy), Elliptical Galaxies, Galactic Structure, Interacting Galaxies, Morphology

Scientific paper

CCD imaging of low-luminosity radio galaxies to detect the optical counterparts of radio jets is described in terms of the surface-photometry procedure and the results for two galaxies. The galaxies have low-power radio jets at the arcsec scale and appear to be interacting with companion galaxies. Interfering images are removed, and isophotal ellipse fitting is undertaken for the primary galaxies. A quasi-elliptical model is then constructed, and the model is subtracted from the original image. A comparison with simulations shows that the method permits the detection of photometric effects of the galactic interactions. A Vaucouleurs law fitted to the inner galaxy is extrapolated to the outer parts permitting the detection of effects such as deviations of the galaxy-surface brightness profiles and nonconcentric isophotes. The limits of the optical emissions from the inner parts of the jets are described in relation to the radio emission.

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