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

dc.contributorAalto Universityen
dc.contributor.authorBerton, M.en_US
dc.contributor.authorCongiu, E.en_US
dc.contributor.authorJärvelä, E.en_US
dc.contributor.authorAntonucci, R.en_US
dc.contributor.authorKharb, P.en_US
dc.contributor.authorLister, M. L.en_US
dc.contributor.authorTarchi, A.en_US
dc.contributor.authorCaccianiga, A.en_US
dc.contributor.authorChen, S.en_US
dc.contributor.authorFoschini, L.en_US
dc.contributor.authorLähteenmäki, A.en_US
dc.contributor.authorRichards, J. L.en_US
dc.contributor.authorCiroi, S.en_US
dc.contributor.authorCracco, V.en_US
dc.contributor.authorFrezzato, M.en_US
dc.contributor.authorLa Mura, G.en_US
dc.contributor.authorRafanelli, P.en_US
dc.contributor.departmentUniversity of Padovaen_US
dc.contributor.departmentDepartment of Electronics and Nanoengineeringen_US
dc.contributor.departmentUniversity of California Santa Barbaraen_US
dc.contributor.departmentTata Institute of Fundamental Researchen_US
dc.contributor.departmentPurdue Universityen_US
dc.contributor.departmentNational Institute for Astrophysics (INAF)en_US
dc.contributor.departmentOsservatorio Astronomico di Breraen_US
dc.description.abstractWe 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.description.versionPeer revieweden
dc.identifier.citationBerton , 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 .
dc.identifier.otherPURE UUID: b0dab672-b8fb-4f3b-9cf1-c381c29d478den_US
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dc.relation.ispartofseriesAstronomy and Astrophysicsen
dc.relation.ispartofseriesVolume 614en
dc.subject.keywordGalaxies: activeen_US
dc.subject.keywordGalaxies: jetsen_US
dc.subject.keywordGalaxies: Seyferten_US
dc.subject.keywordQuasars: supermassive black holesen_US
dc.titleRadio-emitting narrow-line Seyfert 1 galaxies in the JVLA perspectiveen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi