Structural variations of extragalactic radio sources over large frequency ranges
نویسندگان
چکیده
منابع مشابه
Young Extragalactic Radio Sources
Gigahertz Peaked Spectrum (GPS) sources and Compact Symmetric Objects (CSO) are selected in very different ways, but have a significant overlap in properties. Ever since their discovery it has been speculated that they are young objects, but only recently, strong evidence has been provided indicating that GPS sources and CSOs are indeed the young counterparts of large, extended sources. They ar...
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Symmetric extragalactic radio sources exhibit a baffling array of features that are very poorly understood. What is the origin of the remarkable symmetry between the two lobes? Why is the emission in the radio frequency (RF) range? Why are the jets so well collimated, implying long term memory of the core? Why do the core regions emit blue and ultraviolet light? What is the origin of transient ...
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We present the results of an Australia Telescope Compact Array (ATCA) survey for intra-day variability (IDV) of the total and polarized flux densities of 118 compact, flat spectrum, extragalactic radio sources from the Parkes 2.7 GHz Survey. A total of 22 total flux density IDV sources were discovered and 15 sources were found to show IDV of their polarized flux density. We discuss the statisti...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1977
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/179.3.377