Can CMB surveys help the AGN community?

Bruce Partridge*, Laura Bonavera, Marcos López-Caniego, Rahul Datta, Joaquin Gonzalez-Nuevo, Megan Gralla, Diego Herranz, Anne Lähteenmäki, Laura Mocanu, Heather Prince, Joaquin Vieira, Nathan Whitehorn, Lizhong Zhang

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)
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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.

Original languageEnglish
Article number47
Number of pages6
JournalGalaxies
Volume5
Issue number3
DOIs
Publication statusPublished - 30 Aug 2017
MoE publication typeA1 Journal article-refereed

Keywords

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

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