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The Diverse Properties of GPS Sources

M. L. Lister·K. I. Kellermann·I. I. Pauliny-Toth
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Abstract

We discuss the morphology and kinematics of five gigahertz-peaked spectrum (GPS) sources that have been observed with the VLBA. We find a wide range of observed properties including core-jet structure, superluminal motion, variability, extended structure, and polarization, all of which appear to deviate from commonly-accepted GPS paradigms (e.g., O'Dea 1998). We suggest that the observed low frequency cutoff in GPS sources may be primarily due to free-free absorption rather than synchrotron self-absorption.

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M. L. Lister, K. I. Kellermann, I. I. Pauliny-Toth. 2002-07-08. The Diverse Properties of GPS Sources. https://arxiv.org/abs/astro-ph/0207175

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