Radio spectrum evolution and magnetic field in extreme GPS radio sources
نویسندگان
چکیده
منابع مشابه
Radio spectrum evolution and magnetic field in extreme GPS radio sources The case of RXJ 1459 + 3337
Aims. The knowledge of the properties of the youngest radio sources is very important in order to trace the earliest phase of the evolution of the radio emission. RXJ1459+3337, with its high turnover frequency (∼ 25 GHz) provides a unique opportunity to study this class of extreme objects. Methods. High-sensitivity multi-frequency VLA observations have been carried out to measure the flux-densi...
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The study of compact AGN which possess convex radio spectra (the gigahertz-peaked spectrum, or GPS sources) has generated a lot of interest over the last four decades, since these objects offer a unique opportunity to probe both the early evolutionary stages of relativistic AGN jets and their immediate nuclear environments. In this article I trace Ken Kellermann’s early investigations of these ...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2007
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20078098