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Discovery of the most luminous quasar of the last 9 Gyr

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dc.contributor.authorOnken, Christopher A.
dc.contributor.authorLai, Samuel
dc.contributor.authorWolf, Christian
dc.contributor.authorLucy, Adrian B.
dc.contributor.authorHon,Wei Jeat
dc.contributor.authorTisserand, Patrick
dc.contributor.authorSokolosk, Jennifer L.
dc.contributor.authorLuna, Gerardo J. M.
dc.contributor.authorManick, Rajeev
dc.contributor.authorFan, Xiaohui
dc.contributor.authorBian, Fuyan
dc.contributor.authorPérez, Mariana Valeria
dc.contributor.authorLuna, Gerardo Juan Manuel
dc.coverageAUS
dc.date.accessioned2024-01-26T19:18:27Z
dc.date.available2024-01-26T19:18:27Z
dc.date.issued2021
dc.description.abstractWe report the discovery of a bright (g = 14.5 mag (AB), K = 11.9 mag (Vega)) quasar at redshift z = 0.83 — the optically brightest (unbeamed) quasar at z > 0.4. SMSS J114447.77-430859.3, at a Galactic latitude of b = +18.1◦, was identified by its optical colours from the SkyMapper Southern Survey (SMSS) during a search for symbiotic binary stars. Optical and near-infrared spectroscopy reveals broad Mg II, Hβ, Hα, and Paβ emission lines, from which we measure a black hole mass of log10(MBH/M) = 9.4 ± 0.5. With its high luminosity, Lbol = (4.7 ± 1.0) × 1047 erg s−1 or Mi(z = 2) = −29.74 mag (AB), we estimate an Eddington ratio of ≈ 1.4. As the most luminous quasar known over the last ∼9 Gyr of cosmic history, having a luminosity 8× greater than 3C 273, the source offers a range of potential follow-up opportunities.en
dc.description.filFil: Onken, Christopher A.. Australian National University; Australia
dc.description.filFil: Lai, Samuel. Australian National University; Australia
dc.description.filFil: Wolf, Christian. Research School of Astronomy And Astrophysics; Australia
dc.description.filFil: Lucy, Adrian B.. Space Telescope Science Institute; Estados Unidos
dc.description.filFil: Hon, Wei Jeat. University of Melbourne; Australia
dc.description.filFil: Tisserand, Patrick. Sorbonne University; Francia
dc.description.filFil: Sokoloski, Jennifer L.. Columbia University; Estados Unidos
dc.description.filFil: Luna, Gerardo Juan Manuel. Universidad Nacional de Hurlingham; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina. Universidad Nacional de Hurlingham; Argentina
dc.description.filFil: Manick, Rajeev. Universite Grenoble Alpes.; Francia. South African Astronomical Observatory; Sudáfrica
dc.description.filFil: Fan, Xiaohui. University of Arizona; Estados Unidos
dc.description.filFil: Bian, Fuyan. European Southern Observatory Chile.; Chile
dc.formatapplication/pdf
dc.identifier.citationOnken, C.A. et al. (2022) Discovery of the most luminous quasar of the last 9 Gyr. PASA. Astronomical Society of Australia, 39, 37-47. doi:10.1017/pasa.2022.36
dc.identifier.doihttps://doi.org/10.1017/pasa.2022.36 P
dc.identifier.doihttp://dx.doi.org/10.1017/pasa.2022.36
dc.identifier.issn1448-6083
dc.identifier.urihttps://repositorio.unahur.edu.ar/handle/123456789/97
dc.identifier.urihttps://www.cambridge.org/core/product/identifier/S1323358022000364/type/journal_article
dc.identifier.urihttps://arxiv.org/abs/2206.04204
dc.journal.pagination37-47
dc.journal.titlePASA. Astronomical Society of Australia
dc.journal.volume39
dc.language.isoeng
dc.publisherAstronomical Society of Australia
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.licenseAttribution-NonCommercial-ShareAlike 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.subjectNúcleo galácticoses
dc.subjectAgujeros negroses
dc.subjectCuasareses
dc.titleDiscovery of the most luminous quasar of the last 9 Gyren
dc.typeinfo:eu-repo/semantics/article
dc.type.snrdinfo:ar-repo/semantics/artículo
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
relation.isAuthorOfPublication550d3f91-c6af-4379-a094-54e886b72955
relation.isAuthorOfPublication780246c8-d7fb-43ba-b6f5-1ef1f4e7f242
relation.isAuthorOfPublication.latestForDiscovery550d3f91-c6af-4379-a094-54e886b72955
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