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dc.contributor.authorBañados, E.
dc.contributor.authorSchindler, J.-T.
dc.contributor.authorVenemans, B.P.
dc.contributor.authorConnor, T.
dc.contributor.authorDecarli, R.
dc.contributor.authorFarina, E.P.
dc.contributor.authorMazzucchelli, C.
dc.contributor.authorMeyer, R.A.
dc.contributor.authorStern, D.
dc.contributor.authorWalter, F.
dc.contributor.authorFan, X.
dc.contributor.authorHennawi, J.F.
dc.contributor.authorKhusanova, Y.
dc.contributor.authorMorrell, N.
dc.contributor.authorNanni, R.
dc.contributor.authorNoirot, G.
dc.contributor.authorPensabene, A.
dc.contributor.authorRix, H.-W.
dc.contributor.authorSimon, J.
dc.contributor.authorVerdoes, Kleijn, G.A.
dc.contributor.authorXie, Z.-L.
dc.contributor.authorYang, D.-M.
dc.contributor.authorConnor, A.
dc.date.accessioned2024-08-04T07:10:58Z
dc.date.available2024-08-04T07:10:58Z
dc.date.issued2023-03-08
dc.identifier.citationEduardo Bañados et al 2023 ApJS 265 29
dc.identifier.issn0067-0049
dc.identifier.doi10.3847/1538-4365/acb3c7
dc.identifier.urihttp://hdl.handle.net/10150/673523
dc.description.abstractThe identification of bright quasars at z ≳ 6 enables detailed studies of supermassive black holes, massive galaxies, structure formation, and the state of the intergalactic medium within the first billion years after the Big Bang. We present the spectroscopic confirmation of 55 quasars at redshifts 5.6 < z < 6.5 and UV magnitudes −24.5 < M 1450 < −28.5 identified in the optical Pan-STARRS1 and near-IR VIKING surveys (48 and 7, respectively). Five of these quasars have independently been discovered in other studies. The quasar sample shows an extensive range of physical properties, including 17 objects with weak emission lines, 10 broad absorption line quasars, and 5 objects with strong radio emission (radio-loud quasars). There are also a few notable sources in the sample, including a blazar candidate at z = 6.23, a likely gravitationally lensed quasar at z = 6.41, and a z = 5.84 quasar in the outskirts of the nearby (D ∼ 3 Mpc) spiral galaxy M81. The blazar candidate remains undetected in NOEMA observations of the [C ii] and underlying emission, implying a star formation rate <30-70 M ⊙ yr−1. A significant fraction of the quasars presented here lies at the foundation of the first measurement of the z ∼ 6 quasar luminosity function from Pan-STARRS1 (introduced in a companion paper). These quasars will enable further studies of the high-redshift quasar population with current and future facilities. © 2023. The Author(s). Published by the American Astronomical Society.
dc.language.isoen
dc.publisherAmerican Astronomical Society
dc.rights© 2023. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleThe Pan-STARRS1 z > 5.6 Quasar Survey. II. Discovery of 55 Quasars at 5.6 < z < 6.5
dc.typeArticle
dc.typetext
dc.contributor.departmentSteward Observatory, University of Arizona
dc.identifier.journalAstrophysical Journal, Supplement Series
dc.description.noteOpen access journal
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
dc.eprint.versionFinal Published Version
dc.source.journaltitleAstrophysical Journal, Supplement Series
refterms.dateFOA2024-08-04T07:10:58Z


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© 2023. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.
Except where otherwise noted, this item's license is described as © 2023. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.