Identification of a new low-redshift GHz-peaked spectrum radio source and implications for the GHz-peaked spectrum class
نویسندگان
چکیده
منابع مشابه
New 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...
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We present VLBA observations at 15 GHz of ten GHz Peaked Spectrum (GPS) radio sources. The cores are often difficult or impossible to locate. When likely cores are found, they account for a small fraction of the flux density in GPS galaxies around or below 2%, while in GPS quasars they can account for more than 20% of the total flux density. We detect low polarization in the GPS sources – i.e.,...
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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 کاملEVN observations of eleven GHz - Peaked - Spectrum radio sources at 2 . 3 / 8 . 4 GHz
We present results of EVN observations of eleven GHz-Peaked-Spectrum (GPS) radio sources at 2.3/8.4 GHz. These sources are from the classical " bright " GPS source samples with peak flux densities > 0.2 Jy and spectral indices α < −0.2 (S ∝ ν −α) in the optically thick regime of their convex spectra. Most of the target sources did not have VLBI images at the time this project started. The aim o...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2003
ISSN: 0035-8711,1365-2966
DOI: 10.1046/j.1365-2966.2003.07098.x