Radio emission and the optical isophotal twist of radio-loud ellipticals

Astron.Astrophys.410:139,2003 Using the surface photometric analysis data for a well defined sample of 79 nearby radio galaxies (z < 0.12), it is shown that the level of radio emission associated with an elliptical galaxy during the radio-loud phase is related to the presence of large amounts of...

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Bibliographic Details
Main Authors Gopal-Krishna, Dhakulkar, Amit R, Wiita, Paul J, Dhurde, Samir
Format Journal Article
LanguageEnglish
Published 29.08.2003
Subjects
Physics - Astrophysics of Galaxies
Physics - Cosmology and Nongalactic Astrophysics
Physics - Earth and Planetary Astrophysics
Physics - High Energy Astrophysical Phenomena
Physics - Instrumentation and Methods for Astrophysics
Physics - Solar and Stellar Astrophysics
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Summary:Astron.Astrophys.410:139,2003 Using the surface photometric analysis data for a well defined sample of 79 nearby radio galaxies (z < 0.12), it is shown that the level of radio emission associated with an elliptical galaxy during the radio-loud phase is related to the presence of large amounts of isophotal twist in its optical image. In particular, radio galaxies with P_408 > 3 x 10^{25} W/Hz appear to show a preference to be associated with elliptical hosts exhibiting an isophotal twist in excess of ~20 degrees.
DOI:10.48550/arxiv.astro-ph/0308542