Radio-emitting narrow-line Seyfert 1 galaxies in the JVLA perspective

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Berton, M. Congiu, E. Järvelä, E. Antonucci, R. Kharb, P. Lister, M. L. Tarchi, A. Caccianiga, A. Chen, S. Foschini, L. Lähteenmäki, A. Richards, J. L. Ciroi, S. Cracco, V. Frezzato, M. La Mura, G. Rafanelli, P. 2018-08-01T13:32:38Z 2018-08-01T13:32:38Z 2018-06-01
dc.identifier.citation Berton , M , Congiu , E , Järvelä , E , Antonucci , R , Kharb , P , Lister , M L , Tarchi , A , Caccianiga , A , Chen , S , Foschini , L , Lähteenmäki , A , Richards , J L , Ciroi , S , Cracco , V , Frezzato , M , La Mura , G & Rafanelli , P 2018 , ' Radio-emitting narrow-line Seyfert 1 galaxies in the JVLA perspective ' Astronomy and Astrophysics , vol 614 , A87 . DOI: 10.1051/0004-6361/201832612 en
dc.identifier.issn 0004-6361
dc.identifier.issn 1432-0746
dc.identifier.other PURE UUID: b0dab672-b8fb-4f3b-9cf1-c381c29d478d
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE LINK:
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dc.description.abstract We report the first results of a survey on 74 narrow-line Seyfert 1 galaxies (NLS1s) carried out in 2015 with the Karl G. Jansky Very Large Array (JVLA) at 5 GHz in A-configuration. So far, this is the largest survey aimed to image the radio continuum of NLS1s. We produced radio maps in order to compare the general properties of three different samples of objects: radio-quiet NLS1s (RQNLS1s), steep-spectrum radio-loud NLS1s (S-NLS1s), and flat-spectrum radio-loud NLS1s (F-NLS1s). We find that the three classes correspond to different radio morphologies, with F-NLS1s being more compact, and RQNLS1s often showing diffuse emission on kpc scales. We also find that F-NLS1s might be low-luminosity and possibly young blazars, and that S-NLS1s are part of the parent population of F-NLS1s. Dedicated studies to RQNLS1s are needed to fully understand their role in the unification pictures. en
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Astronomy and Astrophysics en
dc.relation.ispartofseries Volume 614 en
dc.rights openAccess en
dc.subject.other Astronomy and Astrophysics en
dc.subject.other Space and Planetary Science en
dc.subject.other 115 Astronomy and space science en
dc.title Radio-emitting narrow-line Seyfert 1 galaxies in the JVLA perspective en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Università Degli Studi di Padova
dc.contributor.department Department of Electronics and Nanoengineering
dc.contributor.department University of California at Santa Barbara
dc.contributor.department Tata Institute of Fundamental Research
dc.contributor.department Purdue University
dc.contributor.department National Institute for Astrophysics
dc.contributor.department Osservatorio Astronomico di Brera
dc.subject.keyword Galaxies: active
dc.subject.keyword Galaxies: jets
dc.subject.keyword Galaxies: Seyfert
dc.subject.keyword Quasars: supermassive black holes
dc.subject.keyword Astronomy and Astrophysics
dc.subject.keyword Space and Planetary Science
dc.subject.keyword 115 Astronomy and space science
dc.identifier.urn URN:NBN:fi:aalto-201808014280
dc.identifier.doi 10.1051/0004-6361/201832612
dc.type.version publishedVersion

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