Multifrequency Studies of Active Galactic Nuclei in the Planck Satellite Era

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Lähteenmäki, Anne 2017-05-11T08:35:59Z 2017-05-11T08:35:59Z 2016-10
dc.identifier.citation Planck Collaboration 2016 , ' Multifrequency Studies of Active Galactic Nuclei in the Planck Satellite Era ' Galaxies , vol 4 , no. 4 , 49 . DOI: 10.3390/galaxies4040049 en
dc.identifier.issn 2075-4434
dc.identifier.other PURE UUID: 84f0ce0c-e1be-465c-9c4a-3d4866716af0
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE LINK:
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dc.description.abstract The multi-epoch single-survey Planck satellite data have given a rare glimpse into how the radio spectra of active galactic nuclei (AGN) evolve in time. Using Planck and simultaneous auxiliary radio data ranging from 1 GHz to 857 GHz, spectra for 104 bright northern extragalactic radio sources (most of them AGN) have been assembled; in these, the various stages of flare development can be identified. The results are compared with theoretical models describing relativistic jets. Evidence for particularly flat high-frequency radio spectra is found, indicating a harder accelerated electron energy spectrum than usually assumed. A set of sources also shows signs of intrinsic cold dust. en
dc.format.extent 6
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Galaxies en
dc.relation.ispartofseries Volume 4, issue 4 en
dc.rights openAccess en
dc.subject.other 115 Astronomy and space science en
dc.title Multifrequency Studies of Active Galactic Nuclei in the Planck Satellite Era en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Radio Science and Engineering
dc.subject.keyword 115 Astronomy and space science
dc.identifier.urn URN:NBN:fi:aalto-201705114048
dc.identifier.doi 10.3390/galaxies4040049
dc.type.version publishedVersion

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