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Material Type: Artigo
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Redshift evolution of X-ray spectral index of quasars observed by XMM-NEWTON/SDSSShehata, SH.M. ; Misra, R. ; Osman, A.M.I. ; Shalabiea, O.M. ; Hayman, Z.M.Journal of high energy astrophysics, 2021-08, Vol.31 (C), p.37-43 [Periódico revisado por pares]Netherlands: Elsevier B.VTexto completo disponível |
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Material Type: Artigo
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A Search for Redshifted 21-CM Absorption in Quasi-Stellar ObjectsHeiles, Carl ; Miley, George K.The Astrophysical journal, 1970-01, Vol.160, p.L83 [Periódico revisado por pares]Texto completo disponível |
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3 |
Material Type: Artigo
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TWO-COMPONENT STRUCTURE OF THE Hβ BROAD-LINE REGION IN QUASARS. I. EVIDENCE FROM SPECTRAL PRINCIPAL COMPONENT ANALYSISCHEN HU ; WANG, Jian-Min ; HO, Luis C ; FERLAND, Gary J ; BALDWIN, Jack A ; YE WANGThe Astrophysical journal, 2012-12, Vol.760 (2), p.126 [Periódico revisado por pares]Bristol: IOPTexto completo disponível |
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Material Type: Artigo
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TWO-COMPONENT STRUCTURE OF THE H[beta] BROAD-LINE REGION IN QUASARS. I. EVIDENCE FROM SPECTRAL PRINCIPAL COMPONENT ANALYSISHu, Chen ; Wang, Jian-Min ; Ho, Luis C ; Ferland, Gary J ; Baldwin, Jack A ; Wang, YeThe Astrophysical journal, 2012-12, Vol.760 (2), p.1-21 [Periódico revisado por pares]United StatesTexto completo disponível |
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Material Type: Artigo
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Linear Polarization of Distant QuasarsCONWAY, R. G ; GILBERT, J. ANature (London), 1970-04, Vol.226 (5243), p.332-333 [Periódico revisado por pares]EnglandTexto completo disponível |
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Material Type: Artigo
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Clustering Effects among Clusters of Galaxies and Quasi-Stellar SourcesBogart, Richard S. ; Wagoner, Robert V.The Astrophysical journal, 1973-05, Vol.181, p.609 [Periódico revisado por pares]Texto completo disponível |
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Material Type: Artigo
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Properties of radio-loud quasars in the Sloan Digital Sky SurveyGaur, H. ; Gu, M. ; Ramya, S. ; Guo, H.Astronomy and astrophysics (Berlin), 2019-11, Vol.631, p.A46 [Periódico revisado por pares]Heidelberg: EDP SciencesTexto completo disponível |
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8 |
Material Type: Artigo
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Broad Emission-Line Shifts in Quasars: An Orientation Measure for Radio-Quiet Quasars?Richards, Gordon T ; Vanden Berk, Daniel E ; Reichard, Timothy A ; Hall, Patrick B ; Schneider, Donald P ; SubbaRao, Mark ; Thakar, Anirudda R ; York, Donald GThe Astronomical journal, 2002-07, Vol.124 (1), p.1-17 [Periódico revisado por pares]IOP PublishingTexto completo disponível |
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Material Type: Artigo
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Quasar Absorption Lines and Radio PolarizationGARDNER, F. F ; WHITEOAK, J. BNature (London), 1970-08, Vol.227 (5258), p.585-585 [Periódico revisado por pares]EnglandTexto completo disponível |
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10 |
Material Type: Artigo
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Quasar Winds Caught on Acceleration and DecelerationYi, Weimin ; Hall, P B ; Yuan, Zunli ; Brandt, W N ; Schneider, D P ; He, Zhicheng ; Jin-Ming, Bai ; Xue-Bing, WuThe Astrophysical journal. Supplement series, 2024-04, Vol.271 (2), p.61 [Periódico revisado por pares]Saskatoon: IOP PublishingTexto completo disponível |