High‐resolution observations of low‐luminosity peaked spectrum sources

Although radio observations have been historically seen as less valuable than optical observations, today's broadband radio spectra of peaked spectrum sources reveal detailed physics from within the inner region of the galaxy, on spatial scales beyond what an optical telescope can resolve. Peak...

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Bibliographic Details
Published in:Astronomische Nachrichten 2021-11, Vol.342 (9-10), p.1077-1081
Main Author: Collier, Jordan D.
Format: Article
Language:English
Subjects:
active galaxies
Broadband
Galactic evolution
galaxy evolution
image processing
Luminosity
Radio astronomy
radio continuum
Radio galaxies
Radio observation
Radio spectra
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Summary:Although radio observations have been historically seen as less valuable than optical observations, today's broadband radio spectra of peaked spectrum sources reveal detailed physics from within the inner region of the galaxy, on spatial scales beyond what an optical telescope can resolve. Peaked radio spectra are thought to be evolving into large‐scale radio galaxies, although an over‐abundance of the most compact sources reveals that a significant fraction are confined within their host galaxies. Furthermore, at the lowest luminosities, these sources are largely unknown, and may reveal the small‐scale precursors of FR‐I galaxies. Here, I summarize the previous work exploring the properties of low‐luminosity peaked radio sources, and the future work that extends on this within even deeper radio observations of well‐studied fields.
ISSN:0004-6337
1521-3994
DOI:10.1002/asna.20210087