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J

Johannes Büchner

ecole polytechnique federale de lausanne

38H-index
307Paper Count
1.9WCitation Count
Published Papers 116
Publication Date
Changing-look Active Galactic Nuclei in SDSS-V: Host-galaxy Properties and Black Hole Scaling Relations
err2026-04-24
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errGrisha Zeltyn; Benny Trakhtenbrot; Michael Eracleous; Scott F. Anderson; Claudio Ricci; Andrea Merloni; Jessie Runnoe; Mirko Krumpe; James Aird; Roberto J. Assef; Catarina Aydar; Franz E. Bauer; W.N. Brandt; Joel R. Brownstein; Johannes Buchner; Kaushik Chatterjee; Laura Duffy; Lorena Hernández-García; Héctor Hernández-Toledo; Anton M. Koekemoer; Sean Morrison; Castalia Alenka Negrete Peñaloza; Mara Salvato; Donald P. Schneider; Yue Shen; Marzena Śniegowska
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Characterizing the roles of transitory obscured phases and inner torus in shaping the fractions of obscured Active Galactic Nuclei at cosmic noon
err2026-04-01
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errAlonso-Tetilla, Alba, V; Shankar, Francesco; Fontanot, Fabio; Lapi, Andrea; Valentini, Milena; Puglisi, Annagrazia; Menci, Nicola; Fu, Hao; Boco, Lumen; Buchner, Johannes; Hirschmann, Michaela; Almeida, Cristina Ramos; Villforth, Carolin; Xie, Lizhi
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Association-induced folding governs surrogate light chain and pre-B cell receptor core assembly
err2026-01-30
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errJasmin König; Natalia Catalina Sarmiento Alam; Ruiming He; Nicolas Blömeke; Olga Sieluzycka; Florian Rührnößl; Maximilian Riedl; Bernd Reif; Matthias J. Feige; Johannes Buchner
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Revisiting the X-ray-to-UV relation of quasars in the era of all-sky surveys
err2026-01-01
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PREAI
errChira, Maria; Georgakakis, Antonis; Ruiz, Angel; Chen, Shi-Jiang; Buchner, Johannes; Rankine, Amy L.; Kammoun, Elias; Aydar, Catarina; Salvato, Mara; Merloni, Andrea; Krumpe, Mirko
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SDSS-V black hole mapper: the index diagram as a tool to disentangle the influence of the host galaxy in quasar spectra
err2025-11-01
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errNegrete, C. A.; Sandoval-Orozco, R.; Ibarra-Medel, H.; Tapia-Benavides, B., I; Assef, R. J.; Dultzin, D.; Lacerna, I; Morrison, S.; Anderson, S. F.; Rodriguez Hidalgo, P.; Aydar, C.; Bauer, F. E.; Benitez, E.; Bizyaev, D.; Brandt, W. N.; Brownstein, J. R.; Buchner, J.; Cruz-Gonzalez, I; Gonzalez-Buitrago, D.; Hernandez-Toledo, H.; Jenaro-Ballesteros, N.; Koekemoer, A.; Krongold, Y.; Martinez-Aldama, M. L.; Pan, K.; Ricci, C.; Salvato, M.; Sanchez, S. F.; Serrano-Felix, D.; Schneider, D. P.; Sniegowska, M.; Trakhtenbrot, B.; Wu, Q.; Wylezalek, D.; Yang, Q.; Zermeno, R. J.
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SRG/eROSITA No. 5: Discovery of Quasiperiodic Eruptions Every ∼3.7 days from a Galaxy at z > 0.1
err2025-08-01
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PREAI
errR. Arcodia; P. Baldini; A. Merloni; A. Rau; K. Nandra; J. Chakraborty; A. J. Goodwin; M. J. Page; J. Buchner; M. Masterson; I. Monageng; Z. Arzoumanian; D. Buckley; E. Kara; G. Ponti; M. E. Ramos-Ceja; M. Salvato; K. Gendreau; I. Grotova; M. Krumpe
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An obscured quasar census with the 4MOST IR AGN survey: design, predicted properties, and scientific goals
err2025-05-01
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errAndonie, Carolina; Alexander, David M.; Greenwell, Claire; Fotopoulou, Sotiria; Hickox, Ryan; Rosario, David J.; Villforth, Carolin; Buchner, Johannes; Krogager, Jens-Kristian; Laloux, Brivael; Merloni, Andrea; Salvato, Mara; Streicher, Ole; Yan, Wei
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Bayesian inference of radial impurity transport in the pedestal of ASDEX Upgrade discharges using charge-exchange spectroscopy
err2025-02-28
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errGleiter, T.; Dux, R.; Sciortino, F.; Odstrcil, T.; Fajardo, D.; Angioni, C.; Buchner, J.; McDermott, R. M.; Hayward-Schneider, T.; Harrer, G. F.; Faitsch, M.; Griener, M.; Fischer, R.; Wolfrum, E.; Stroth, U.
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Science objectives of the Einstein Probe mission
err2025-01-24
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errYuan, Weimin; Dai, Lixin; Feng, Hua; Jin, Chichuan; Jonker, Peter; Kuulkers, Erik; Liu, Yuan; Nandra, Kirpal; O'Brien, Paul; Piro, Luigi; Rau, Arne; Rea, Nanda; Sanders, Jeremy; Tao, Lian; Wang, Junfeng; Wu, Xuefeng; Zhang, Bing; Zhang, Shuangnan; Ai, Shunke; Buchner, Johannes; Bulbul, Esra; Chen, Hechao; Chen, Minghua; Chen, Yong; Chen, Yu-Peng; Coleiro, Alexis; Zelati, Francesco Coti; Dai, Zigao; Fan, Xilong; Fan, Zhou; Friedrich, Susanne; Gao, He; Ge, Chong; Ge, Mingyu; Geng, Jinjun; Ghirlanda, Giancarlo; Gianfagna, Giulia; Gou, Lijun; Guillot, Sebastien; Hou, Xian; Hu, Jingwei; Huang, Yongfeng; Ji, Long; Jia, Shumei; Komossa, S.; Kong, Albert K. H.; Lan, Lin; Li, An; Li, Ang; Li, Chengkui; Li, Dongyue; Li, Jian; Li, Zhaosheng; Ling, Zhixing; Liu, Ang; Liu, Jinzhong; Liu, Liangduan; Liu, Zhu; Luo, Jiawei; Ma, Ruican; Maggi, Pierre; Maitra, Chandreyee; Marino, Alessio; Ng, Stephen Chi-Yung; Pan, Haiwu; Rukdee, Surangkhana; Soria, Roberto; Sun, Hui; Tam, Pak-Hin Thomas; Thakur, Aishwarya Linesh; Tian, Hui; Troja, Eleonora; Wang, Wei; Wang, Xiangyu; Wang, Yanan; Wei, Junjie; Wen, Sixiang; Wu, Jianfeng; Wu, Ting; Xiao, Di; Xu, Dong; Xu, Renxin; Xu, Yanjun; Xu, Yu; Yang, Haonan; You, Bei; Yu, Heng; Yu, Yunwei; Zhang, Binbin; Zhang, Chen; Zhang, Guobao; Zhang, Liang; Zhang, Wenda; Zhang, Yu; Zhou, Ping; Zou, Zecheng
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Hydrogen Column Density Variability in a Sample of Local Compton-thin AGN II
err2025-01-24
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errPizzetti, A.; Torres-Alba, N.; Marchesi, S.; Buchner, J.; Cox, I.; Zhao, X.; Neal, S.; Sengupta, D.; Silver, R.; Ajello, M.
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The eROSITA Final Equatorial Depth Survey (eFEDS) The hard X-ray selected sample
err2025-01-17
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errNandra, K.; Waddell, S. G. H.; Liu, T.; Buchner, J.; Dwelly, T.; Salvato, M.; Shen, Y.; Wu, Q.; Arcodia, R.; Boller, Th.; Brunner, H.; Brusa, M.; Collmar, W.; Comparat, J.; Georgakakis, A.; Grau, M.; Haemmerich, S.; Ibarra-Medel, H.; Igo, Z.; Krumpe, M.; Lamer, G.; Merloni, A.; Musiimenta, B.; Wolf, J.; Assef, R. J.; Bauer, F. E.; Brandt, W. N.; Rix, H. -w.
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PICZL: Image-based photometric redshifts for AGN
err2024-12-18
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errRoster, W.; Salvato, M.; Krippendorf, S.; Saxena, A.; Shirley, R.; Buchner, J.; Wolf, J.; Dwelly, T.; Bauer, F. E.; Aird, J.; Ricci, C.; Assef, R. J.; Anderson, S. F.; Liu, X.; Merloni, A.; Weller, J.; Nandra, K.
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Genuine Retrieval of the AGN Host Stellar Population (GRAHSP)
err2024-12-13
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errBuchner, Johannes; Starck, Hattie; Salvato, Mara; Netzer, Hagai; Igo, Zsofi; Laloux, Brivael; Georgakakis, Antonis; Gauger, Isabelle; Olechowska, Anna; Lopez, Nicolas; Shankar, Suraj D.; Li, Junyao; Nandra, Kirpal; Merloni, Andrea
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Fragments of harmony amid apparent chaos: A closer look at the X-ray quasi-periodic eruptions of the galaxy RX J1301.9+2747
err2024-11-29
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errGiustini, Margherita; Miniutti, Giovanni; Arcodia, Riccardo; Goodwin, Adelle; Alexander, Kate D.; Chakraborty, Joheen; Buchner, Johannes; Kosec, Peter; Saxton, Richard; Bonetti, Matteo; Franchini, Alessia; Ryu, Taeho; Shu, Xinwen; Kara, Erin; Ponti, Gabriele; Quintin, Erwan; Vincentelli, Federico; Webb, Natalie; Kajava, Jari; von Fellenberg, Sebastiano D.
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An Intermediate-mass Black Hole Hidden behind Thick Obscuration
err2024-11-06
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errBoorman, Peter G.; Stern, Daniel; Assef, Roberto J.; Borkar, Abhijeet; Brightman, Murray; Buchner, Johannes; Chen, Chien-Ting; Earnshaw, Hannah P.; Harrison, Fiona A.; Matzeu, Gabriele A.; Pfeifle, Ryan W.; Ricci, Claudio; Svoboda, Jiri; Torres-Alba, Nuria; Zaw, Ingyin
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The SRG/eROSITA All-Sky Survey: X-ray beacons at late cosmic dawn
err2024-10-29
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errWolf, J.; Salvato, M.; Belladitta, S.; Arcodia, R.; Ciroi, S.; Di Mille, F.; Sbarrato, T.; Buchner, J.; Haemmerich, S.; Wilms, J.; Collmar, W.; Dwelly, T.; Merloni, A.; Urrutia, T.; Nandra, K.
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CIRCLEZ : Reliable photometric redshifts for active galactic nuclei computed solely using photometry from Legacy Survey Imaging for DESI
err2024-10-24
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PREAI
errSaxena, A.; Salvato, M.; Roster, W.; Shirley, R.; Buchner, J.; Wolf, J.; Kohl, C.; Starck, H.; Dwelly, T.; Comparat, J.; Malyali, A.; Krippendorf, S.; Zenteno, A.; Lang, D.; Schlegel, D.; Zhou, R.; Dey, A.; Valdes, F.; Myers, A.; Assef, R. J.; Ricci, C.; Temple, M. J.; Merloni, A.; Koekemoer, A.; Anderson, S. F.; Morrison, S.; Liu, X.; Nandra, K.
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Constraining the properties of the thermonuclear burst oscillation source XTE J1814-338 through pulse profile modelling
err2024-10-21
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errKini, Yves; Salmi, Tuomo; Vinciguerra, Serena; Watts, Anna L.; Bilous, Anna; Galloway, Duncan K.; van der Wateren, Emma; Khalsa, Guru Partap; Bogdanov, Slavko; Buchner, Johannes; Suleimanov, Valery
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The eROSITA Final Equatorial Depth Survey (eFEDS): Complex absorption and soft excesses in hard X-ray-selected active galactic nuclei
err2024-10-04
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errWaddell, S. G. H.; Nandra, K.; Buchner, J.; Wu, Q.; Shen, Y.; Arcodia, R.; Merloni, A.; Salvato, M.; Dauser, T.; Boller, Th.; Liu, T.; Comparat, J.; Wolf, J.; Dwelly, T.; Ricci, C.; Brownstein, J. R.; Brusa, M.
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Systematic collapse of the accretion disc across the supermassive black hole population
err2024-10-03
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errHagen, Scott; Done, Chris; Silverman, John D.; Li, Junyao; Liu, Teng; Ren, Wenke; Buchner, Johannes; Merloni, Andrea; Nagao, Tohru; Salvato, Mara
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