Can CMB surveys help the AGN community?

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© 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Authors

Date

2017-08-30

Department

Metsähovi Radio Observatory
Department of Electronics and Nanoengineering

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Mcode

Degree programme

Language

en

Pages

6

Series

Galaxies, Volume 5, issue 3

Abstract

Contemporary projects to measure anisotropies in the cosmic microwave background (CMB) are now detecting hundreds to thousands of extragalactic radio sources, most of them blazars. As a member of a group of CMB scientists involved in the construction of catalogues of such sources and their analysis, I wish to point out the potential value of CMB surveys to studies of AGN jets and their polarization. Current CMB projects, for instance, reach mJy sensitivity, offer wide sky coverage, are "blind" and generally of uniform sensitivity across the sky (hence useful statistically), make essentially simultaneous multi-frequency observations at frequencies from 30 to 857 GHz, routinely offer repeated observations of sources with interesting cadences and now generally provide polarization measurements. The aim here is not to analyze in any depth the AGN science already derived from such projects, but rather to heighten awareness of their promise for the AGN community.

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Keywords

Active galactic nuclei, Cosmic microwave background, Extragalactic radio sources, Polarized emission

Other note

DOI

10.3390/galaxies5030047

Citation

Partridge, B, Bonavera, L, López-Caniego, M, Datta, R, Gonzalez-Nuevo, J, Gralla, M, Herranz, D, Lähteenmäki, A, Mocanu, L, Prince, H, Vieira, J, Whitehorn, N & Zhang, L 2017, 'Can CMB surveys help the AGN community?', Galaxies, vol. 5, no. 3, 47. https://doi.org/10.3390/galaxies5030047

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https://urn.fi/URN:NBN:fi:aalto-201711217681

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[article-cris] Sähkötekniikan korkeakoulu / ELEC