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Monthly Notices of the Royal Astronomical Society 491 (4) 4884 (2020)
https://doi.org/10.1093/mnras/stz3395

BAL and non-BAL quasars: continuum, emission, and absorption properties establish a common parent sample

Amy L Rankine, Paul C Hewett, Manda Banerji and Gordon T Richards
Monthly Notices of the Royal Astronomical Society 492 (3) 4553 (2020)
https://doi.org/10.1093/mnras/staa130

Spectral energy distributions of candidate periodically variable quasars: testing the binary black hole hypothesis

Hengxiao Guo, Xin Liu, Tayyaba Zafar and Wei-Ting Liao
Monthly Notices of the Royal Astronomical Society 492 (2) 2910 (2020)
https://doi.org/10.1093/mnras/stz3566

Three-dimensional Distribution Map of H i Gas and Galaxies around an Enormous Lyα Nebula and Three QSOs at z = 2.3 Revealed by the H i Tomographic Mapping Technique

Shiro Mukae, Masami Ouchi, Zheng Cai, Khee-Gan Lee, J. Xavier Prochaska, Sebastiano Cantalupo, Yoshiaki Ono, Zheng Zheng, Kentaro Nagamine, Nao Suzuki, John D. Silverman, Toru Misawa, Akio K. Inoue, Joseph F. Hennawi, Yuichi Matsuda, Ken Mawatari, Yuma Sugahara, Takashi Kojima, Takatoshi Shibuya, Yuichi Harikane, Seiji Fujimoto, Yi-Kuan Chiang, Haibin Zhang and Ryota Kakuma
The Astrophysical Journal 896 (1) 45 (2020)
https://doi.org/10.3847/1538-4357/ab8db7

Extreme ultraviolet quasar colours from GALEX observations of the SDSS DR14Q catalogue

Daniel E Vanden Berk, Sarah C Wesolowski, Mary J Yeckley, et al.
Monthly Notices of the Royal Astronomical Society 493 (2) 2745 (2020)
https://doi.org/10.1093/mnras/staa411

A thirty-four billion solar mass black hole in SMSS J2157–3602, the most luminous known quasar

Christopher A Onken, Fuyan Bian, Xiaohui Fan, et al.
Monthly Notices of the Royal Astronomical Society 496 (2) 2309 (2020)
https://doi.org/10.1093/mnras/staa1635

The Sloan Digital Sky Survey Quasar Catalog: Sixteenth Data Release

Brad W. Lyke, Alexandra N. Higley, J. N. McLane, Danielle P. Schurhammer, Adam D. Myers, Ashley J. Ross, Kyle Dawson, Solène Chabanier, Paul Martini, Nicolás G. Busca, Hélion du Mas des Bourboux, Mara Salvato, Alina Streblyanska, Pauline Zarrouk, Etienne Burtin, Scott F. Anderson, Julian Bautista, Dmitry Bizyaev, W. N. Brandt, Jonathan Brinkmann, Joel R. Brownstein, Johan Comparat, Paul Green, Axel de la Macorra, Andrea Muñoz Gutiérrez, et al.
The Astrophysical Journal Supplement Series 250 (1) 8 (2020)
https://doi.org/10.3847/1538-4365/aba623

Serendipitous discovery of a brightening quasar at redshift z = 3.68

Fernando J. Selman, Fuyan Bian, Israel Blanchard, Stephane Brillant, Lodovico Coccato, Stefano Cristiani, Pascale Hibon, Darshan Kakkad, Andrea Mehner, Sabine Moehler, Diego Parraguez, Claudia Reyes, Thomas Rivinius, Sergio Vera, Frédéric P. A. Vogt, Peter M. Weilbacher and Bin Yang
Astronomische Nachrichten 341 (1) 26 (2020)
https://doi.org/10.1002/asna.202013637

The first high-redshift changing-look quasars

Nicholas P Ross, Matthew J Graham, Giorgio Calderone, et al.
Monthly Notices of the Royal Astronomical Society 498 (2) 2339 (2020)
https://doi.org/10.1093/mnras/staa2415

The correlations between optical/UV broad lines and X-ray emission for a large sample of quasars

John D Timlin, W N Brandt, Q Ni, et al.
Monthly Notices of the Royal Astronomical Society 492 (1) 719 (2020)
https://doi.org/10.1093/mnras/stz3433

Detecting multiple DLAs per spectrum in SDSS DR12 with Gaussian processes

Ming-Feng Ho, Simeon Bird and Roman Garnett
Monthly Notices of the Royal Astronomical Society 496 (4) 5436 (2020)
https://doi.org/10.1093/mnras/staa1806