Gigahertz-Peaked Spectrum Radio Sources in Nearby Galaxies

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dc.creatorNagar, N. M.
dc.creatorWilson, A. S.
dc.creatorFalcke, H.
dc.creatorUlvestad, J. S.
dc.creatorMundell, C. G.
dc.date2002-01-10
dc.date.accessioned2026-07-25T18:33:02Z
dc.descriptionThere is now strong evidence that many low-luminosity AGNs (LLAGNs) contain accreting massive black holes and that the nuclear radio emission is dominated by parsec-scale jets launched by these black holes. Here, we present preliminary results on the 1.4 GHz to 667 GHz spectral shape of a well-defined sample of 16 LLAGNs. The LLAGNs have a falling spectrum at high GHz frequencies. Several also show a low-frequency turnover with a peak in the 1-20 GHz range. The results provide further support for jet dominance of the core radio emission. The LLAGNs show intriguing similarities with gigahertz-peaked spectrum (GPS) sources.
dc.description6 pages, to appear in ASP Conference series, 2002, Vol. 258
dc.identifierhttps://arxiv.org/abs/astro-ph/0201156
dc.identifierhttp://arxiv.org/abs/astro-ph/0201156
dc.identifier.urihttps://dspace.dare.co.zw/handle/123456789/56239
dc.subjectAstrophysics
dc.titleGigahertz-Peaked Spectrum Radio Sources in Nearby Galaxies
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