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dc.contributor.author
Kapińska, Anna D.
dc.contributor.author
Terentev, Ivan
dc.contributor.author
Shabala, Stanislav S.
dc.contributor.author
Wong, O. Ivy
dc.contributor.author
Andernach, Heinz
dc.contributor.author
Rudnick, Lawrence
dc.contributor.author
Storer, L.
dc.contributor.author
Banfield, Julie K.
dc.contributor.author
Willett, Kyle
dc.contributor.author
De Gasperin, Franco
dc.contributor.author
Lintott, Chris J.
dc.contributor.author
López-Sánchez, Ángel R.
dc.contributor.author
Middelberg, Enno
dc.contributor.author
Norris, Ray P.
dc.contributor.author
Schawinski, Kevin
dc.contributor.author
Seymour, Nick
dc.contributor.author
Simmons, B.
dc.date.accessioned
2018-01-04T11:52:51Z
dc.date.available
2017-12-09T05:49:32Z
dc.date.available
2017-12-11T11:30:10Z
dc.date.available
2018-01-04T11:52:51Z
dc.date.available
2018-01-04T10:35:56Z
dc.date.available
2018-01-04T11:51:34Z
dc.date.issued
2017-12
dc.identifier.issn
0004-6256
dc.identifier.issn
1538-3881
dc.identifier.other
10.3847/1538-3881/aa90b7
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/225791
dc.identifier.doi
10.3929/ethz-b-000219517
dc.description.abstract
Hybrid morphology radio sources (HyMoRS) are a rare type of radio galaxy that display different Fanaroff–Riley classes on opposite sides of their nuclei. To enhance the statistical analysis of HyMoRS, we embarked on a large-scale search of these sources within the international citizen science project, Radio Galaxy Zoo (RGZ). Here, we present 25 new candidate hybrid morphology radio galaxies. Our selected candidates are moderate power radio galaxies (${L}_{\mathrm{median}}=4.7\times {10}^{24}$ W Hz−1 sr−1) at redshifts $0.14\lt z\lt 1.0$. Hosts of nine candidates have spectroscopic observations, of which six are classified as quasars, one as high- and two as low-excitation galaxies. Two candidate HyMoRS are giant ($\gt 1$ Mpc) radio galaxies, one resides at the center of a galaxy cluster, and one is hosted by a rare green bean galaxy. Although the origin of the hybrid morphology radio galaxies is still unclear, this type of radio source starts depicting itself as a rather diverse class. We discuss hybrid radio morphology formation in terms of the radio source environment (nurture) and intrinsically occurring phenomena (nature; activity cessation and amplification), showing that these peculiar radio galaxies can be formed by both mechanisms. While high angular resolution follow-up observations are still necessary to confirm our candidates, we demonstrate the efficacy of the RGZ in the pre-selection of these sources from all-sky radio surveys, and report the reliability of citizen scientists in identifying and classifying complex radio sources.
en_US
dc.format
application/pdf
dc.language.iso
en
en_US
dc.publisher
Institute of Physics
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/3.0/
dc.subject
galaxies: active
en_US
dc.subject
galaxies: clusters: individual (WHL J122425.8 + 020310)
en_US
dc.subject
galaxies: jets
en_US
dc.subject
ISM: lines and bands
en_US
dc.subject
quasars: supermassive black holes
en_US
dc.subject
radio continuum: galaxies
en_US
dc.title
Radio Galaxy Zoo: A Search for Hybrid Morphology Radio Galaxies
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 3.0 Unported
dc.date.published
2017-11-27
ethz.journal.title
The Astronomical Journal
ethz.journal.volume
154
en_US
ethz.journal.issue
6
en_US
ethz.journal.abbreviated
Astron. j.
ethz.pages.start
253
en_US
ethz.size
16 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
From the Dawn of the Universe to Today: The Co-evolution of Galaxies and Black Holes
en_US
ethz.identifier.scopus
ethz.publication.place
Bristol
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::03968 - Schawinski (SNF-Professur) (ehemalig) / Schawinski (SNF-Professur) (former)
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::03968 - Schawinski (SNF-Professur) (ehemalig) / Schawinski (SNF-Professur) (former)
en_US
ethz.grant.agreementno
138979
ethz.grant.fundername
SNF
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.program
SNF-Förderungsprofessuren Stufe 2
ethz.date.deposited
2017-12-09T05:49:37Z
ethz.source
SCOPUS
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2018-01-05T07:39:26Z
ethz.rosetta.lastUpdated
2022-03-28T18:47:10Z
ethz.rosetta.versionExported
true
dc.identifier.olduri
http://hdl.handle.net/20.500.11850/225378
dc.identifier.olduri
http://hdl.handle.net/20.500.11850/219517
ethz.COinS
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