VLBA and MERLIN Polarization Observations of Compact Steep-Spectrum Source
نویسندگان
چکیده
منابع مشابه
FIRST-based survey of Compact Steep Spectrum sources II. MERLIN and VLA observations of Medium-sized Symmetric Objects
Abstract. A new sample of candidate Compact Steep Spectrum (CSS) sources that are much weaker than the CSS source prototypes has been selected from the VLA FIRST catalogue. MERLIN ‘snapshot’ observations of the sources at 5 GHz indicate that six of them have an FR II-like morphology, but are not edge-brightened as is normal for Medium-sized Symmetric Objects (MSOs) and FR IIs. Further observati...
متن کاملFIRST-based survey of Compact Steep Spectrum sources III. MERLIN and VLBI observations of subarcsecond-scale objects
Context. According to a generally accepted paradigm, small intrinsic sizes of Compact Steep Spectrum (CSS) radio sources are a direct consequence of their youth, but in later stages of their evolution they are believed to become large-scale sources. However, this notion was established mainly for strong CSS sources. Aims. In this series of papers we test this paradigm on 60 weaker objects selec...
متن کاملISO observations of a sample of Compact Steep Spectrum and GHz Peaked Spectrum Radio Galaxies
We present results from observations obtained with ISOPHOT, on board the ISO satellite, of a representative sample of seventeen CSS/GPS radio galaxies and of a control sample of sixteen extended radio galaxies spanning similar ranges in redshift (0.2 ≤ z ≤ 0.8) and radio luminosity (P2.7GHz ≥ 10 W/Hz). The observations have been performed at λ = 60, 90, 174 and 200 μm. The original purpose of t...
متن کاملNew candidate GHz Peaked Spectrum and Compact Steep Spectrum Sources
Data from a recent Australia Telescope Compact Array (ATCA) program of multi-frequency, multi-epoch monitoring of 202 active galactic nuclei with declinations < +10 • have been searched for GHz Peaked Spectrum (GPS) and Compact Steep Spectrum (CSS) radio sources. Supplementary data at higher and lower frequencies, where available, have been used to further examine the spectral properties of pre...
متن کاملEffelsberg 100-m polarimetric observations of a sample of Compact Steep-Spectrum sources
Aims. We completed observations with the Effelsberg 100-m radio telescope to measure the polarised emission from a complete sample of Compact Steep-Spectrum sources and improve our understanding of the physical conditions inside and around regions of radio emission embedded in dense interstellar environments. Methods. We observed the sources at four different frequencies, namely 2.64 GHz, 4.85G...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1998
ISSN: 0252-9211
DOI: 10.1017/s0252921100045656