| |  Online-Ressource |
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| Verfasst von: | Andika, Irham Taufik [VerfasserIn]  |
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| | Jahnke, Knud [VerfasserIn] |
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| | Onoue, Masafusa [VerfasserIn] |
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| | Bañados Torres, Eduardo [VerfasserIn] |
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| | Mazzucchelli, Chiara [VerfasserIn] |
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| | Novak, Mladen [VerfasserIn] |
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| | Eilers, Anna-Christina [VerfasserIn] |
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| | Venemans, Bram P. [VerfasserIn] |
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| | Schindler, Jan-Torge [VerfasserIn] |
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| | Walter, Fabian [VerfasserIn] |
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| | Neeleman, Marcel [VerfasserIn] |
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| | Simcoe, Robert A. [VerfasserIn] |
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| | Decarli, Roberto [VerfasserIn] |
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| | Farina, Emanuele Paolo [VerfasserIn] |
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| | Marian, Victor [VerfasserIn] |
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| | Pensabene, Antonio [VerfasserIn] |
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| | Cooper, Thomas M. [VerfasserIn] |
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| | Rojas, Alejandra F. [VerfasserIn] |
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| Titel: | Probing the nature of high-redshift weak emission line quasars |
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| Titelzusatz: | a young quasar with a starburst host galaxy |
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| Verf.angabe: | Irham Taufik Andika, Knud Jahnke, Masafusa Onoue, Eduardo Bañados, Chiara Mazzucchelli, Mladen Novak, Anna-Christina Eilers, Bram P. Venemans, Jan-Torge Schindler, Fabian Walter, Marcel Neeleman, Robert A. Simcoe, Roberto Decarli, Emanuele Paolo Farina, Victor Marian, Antonio Pensabene, Thomas M. Cooper, and Alejandra F. Rojas |
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| E-Jahr: | 2020 |
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| Jahr: | 2020 October 29 |
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| Umfang: | 20 S. |
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| Teil: | volume:903 |
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| | year:2020 |
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| | number:1 |
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| | extent:20 |
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| Fussnoten: | Gesehen am 30.11.2020 |
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| Titel Quelle: | Enthalten in: The astrophysical journal / 1 |
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| Ort Quelle: | London : Institute of Physics Publ., 1996 |
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| Jahr Quelle: | 2020 |
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| Band/Heft Quelle: | 903(2020,1) Artikel-Nummer 34, 20 Seiten |
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| ISSN Quelle: | 1538-4357 |
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| Abstract: | We present the discovery of PSO J083.8371+11.8482, a weak emission line quasar with extreme star formation rate at z = 6.3401. This quasar was selected from Pan-STARRS1, UHS, and unWISE photometric data. Gemini/GNIRS spectroscopy follow-up indicates a Mg ii-based black hole mass of M ⊙ and an Eddington ratio of , in line with an actively accreting supermassive black hole (SMBH) at z ≳ 6. Hubble Space Telescope imaging sets strong constraint on lens boosting, showing no relevant effect on the apparent emission. The quasar is also observed as a pure point source with no additional emission component. The broad-line region (BLR) emission is intrinsically weak and not likely caused by an intervening absorber. We found rest-frame equivalent widths of EW , EW Å (3σ upper limit), and EW . A small proximity zone size ( pMpc) indicates a lifetime of only years from the last quasar phase ignition. ALMA shows extended [C ii] emission with a mild velocity gradient. The inferred far-infrared luminosity () is one of the highest among all known quasar hosts at z ≳ 6. Dust and [C ii] emissions put a constraint on the star formation rate of SFR = 900-, similar to that of a hyperluminous infrared galaxy. Considering the observed quasar lifetime and BLR formation timescale, the weak-line profile in the quasar spectrum is most likely caused by a BLR that is not yet fully formed rather than by continuum boosting by gravitational lensing or a soft continuum due to super-Eddington accretion. |
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| DOI: | doi:10.3847/1538-4357/abb9a6 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.3847/1538-4357/abb9a6 |
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| | DOI: https://doi.org/10.3847/1538-4357/abb9a6 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1741451469 |
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| Verknüpfungen: | → Zeitschrift |
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Probing the nature of high-redshift weak emission line quasars / Andika, Irham Taufik [VerfasserIn]; 2020 October 29 (Online-Ressource)
