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

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dc.contributorAalto-yliopistofi
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.departmentDepartment of Electronics and Nanoengineeringen
dc.contributor.departmentMetsähovi Radio Observatoryen
dc.contributor.groupauthorAnne Lähteenmäki Groupen
dc.contributor.organizationUniversity of Padovaen_US
dc.contributor.organizationUniversity of California, Santa Barbaraen_US
dc.contributor.organizationTata Institute of Fundamental Researchen_US
dc.contributor.organizationPurdue Universityen_US
dc.contributor.organizationNational Institute for Astrophysics (INAF)en_US
dc.contributor.organizationOsservatorio Astronomico di Breraen_US
dc.date.accessioned2018-08-01T13:32:38Z
dc.date.available2018-08-01T13:32:38Z
dc.date.issued2018-06-01en_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.format.mimetypeapplication/pdfen_US
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 & Astrophysics, vol. 614, A87. https://doi.org/10.1051/0004-6361/201832612en
dc.identifier.doi10.1051/0004-6361/201832612en_US
dc.identifier.issn0004-6361
dc.identifier.issn1432-0746
dc.identifier.otherPURE UUID: b0dab672-b8fb-4f3b-9cf1-c381c29d478den_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/b0dab672-b8fb-4f3b-9cf1-c381c29d478den_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/26741759/ELEC_Berton_et_al_Radio_emitting_AstronomyandAstrophysics.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/32879
dc.identifier.urnURN:NBN:fi:aalto-201808014280
dc.language.isoenen
dc.publisherEDP Sciences
dc.relation.fundinginfocA knowledgements. The authors are deeply grateful to Dr. M. Giroletti for the helpful discussion about the JVLA data reduction. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. This paper is based on observations collected with the 1.22 m Galileo telescope of the Asiago Astrophysical Observatory, operated by the Department of Physics and Astronomy “G. Galilei” of the University of Padova. This work has been partially supported by PRIN INAF 2014 “Jet and astro-particle physics of gamma-ray blazars” (P.I. F. Tavecchio). This research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Admistration.
dc.relation.ispartofseriesAstronomy & Astrophysicsen
dc.relation.ispartofseriesVolume 614en
dc.rightsopenAccessen
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
dc.type.versionpublishedVersion

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