Extragalactic megahertz-peaked spectrum radio sources at milliarcsecond scales

Extragalactic peaked-spectrum radio sources are thought to be the progenitors of larger, radio-loud active galactic nuclei (AGN). Synchrotron self-absorption (SSA) has often been identified as the cause of their spectral peak. The identification of new megahertz-peaked spectrum sources from the GaLa...

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Veröffentlicht in:	Astronomy and astrophysics (Berlin) 2019-08, Vol.628, p.A56
Hauptverfasser:	Keim, M. A., Callingham, J. R., Röttgering, H. J. A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption Active galactic nuclei Arrays Field strength galaxies: active galaxies: evolution Interstellar matter Luminosity Magnetic fields Morphology Peak frequency Radio radio continuum: galaxies Sky surveys (astronomy) Spectra
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