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A UV to X-Ray View of Soft Excess in Type 1 Active Galactic Nuclei. I. Sample Selection and Spectral Profile
Shi-Jiang Chen, Jun-Xian Wang, Jia-Lai Kang, Wen-Yong Kang, Hao Sou, Teng Liu, Zhen-Yi Cai and Zhen-Bo Su The Astrophysical Journal 980(1) 23 (2025) https://doi.org/10.3847/1538-4357/ada035
Euclid preparation
M. Selwood, S. Fotopoulou, M. N. Bremer, L. Bisigello, H. Landt, E. Bañados, G. Zamorani, F. Shankar, D. Stern, E. Lusso, L. Spinoglio, V. Allevato, F. Ricci, A. Feltre, F. Mannucci, M. Salvato, R. A. A. Bowler, M. Mignoli, D. Vergani, F. La Franca, A. Amara, S. Andreon, N. Auricchio, M. Baldi, S. Bardelli, et al. Astronomy & Astrophysics 693 A250 (2025) https://doi.org/10.1051/0004-6361/202450894
A Multi-faceted View of the X-Ray Spectral Variability in Seyfert Galaxy Ark 120
Exploring the Spectral Energy Distributions of Luminous Broad Absorption Line Quasars at High Redshift
Harum Ahmed, Sarah C. Gallagher, Ohad Shemmer, Michael S. Brotherton, Cooper Dix, Leigh Parrott and Gordon T. Richards The Astrophysical Journal 985(2) 207 (2025) https://doi.org/10.3847/1538-4357/adca38
A Long-term Study of Mrk 50: Appearance and Disappearance of Soft Excess
HYPERION: Broad-band X-ray-to-near-infrared emission of quasars in the first billion years of the Universe
I. Saccheo, A. Bongiorno, E. Piconcelli, L. Zappacosta, M. Bischetti, V. D’Odorico, C. Done, M. J. Temple, V. Testa, A. Tortosa, M. Brusa, S. Carniani, F. Civano, A. Comastri, S. Cristiani, D. De Cicco, M. Elvis, X. Fan, C. Feruglio, F. Fiore, S. Gallerani, E. Giallongo, R. Gilli, A. Grazian, M. Guainazzi, et al. Astronomy & Astrophysics 693 A157 (2025) https://doi.org/10.1051/0004-6361/202450876
Multiwavelength Study of a Hyperluminous X-Ray Source near NGC 6099: A Strong IMBH Candidate
Yi-Chi Chang, Roberto Soria, Albert K. H. Kong, Alister W. Graham, Kirill A. Grishin and Igor V. Chilingarian The Astrophysical Journal 983(2) 109 (2025) https://doi.org/10.3847/1538-4357/adbbee
The eROSITA Final Equatorial Depth Survey (eFEDS): Complex absorption and soft excesses in hard X-ray–selected active galactic nuclei
S. G. H. Waddell, K. Nandra, J. Buchner, Q. Wu, Y. Shen, R. Arcodia, A. Merloni, M. Salvato, T. Dauser, Th. Boller, T. Liu, J. Comparat, J. Wolf, T. Dwelly, C. Ricci, J. R. Brownstein and M. Brusa Astronomy & Astrophysics 690 A132 (2024) https://doi.org/10.1051/0004-6361/202245572
Recurring tidal disruption events a decade apart in IRAS F01004-2237
Luming Sun, Ning Jiang, Liming Dou, Xinwen Shu, Jiazheng Zhu, Subo Dong, David Buckley, S. Bradley Cenko, Xiaohui Fan, Mariusz Gromadzki, Zhu Liu, Jianguo Wang, Tinggui Wang, Yibo Wang, Tao Wu, Lei Yang, Fabao Zhang, Wenjie Zhang and Xiaer Zhang Astronomy & Astrophysics 692 A262 (2024) https://doi.org/10.1051/0004-6361/202452380
Probing the face-on disc-corona system of the bare AGN Mrk 110 from UV to hard X-rays: A moderate changing-state AGN?
Constraints on the densities and temperature of the Seyfert 2 narrow line region
Luc Binette, Henry R. M. Zovaro, Montserrat Villar Martín, Oli L. Dors, Yair Krongold, Christophe Morisset, Mitchell Revalski, Alexandre Alarie, Rogemar A. Riffel and Michael A. Dopita Astronomy & Astrophysics 684 A53 (2024) https://doi.org/10.1051/0004-6361/202245754
The Weakness of Soft X-Ray Intensity: Possible Physical Reason for Weak-line Quasars
Heavily obscured AGN detection: A radio versus X-ray challenge
G. Mazzolari, R. Gilli, M. Brusa, M. Mignoli, F. Vito, I. Prandoni, S. Marchesi, M. Chiaberge, G. Lanzuisi, Q. D’Amato, A. Comastri, C. Vignali, K. Iwasawa and C. Norman Astronomy & Astrophysics 687 A120 (2024) https://doi.org/10.1051/0004-6361/202348072
Comprehensive view of a z ∼ 6.5 radio-loud quasi-stellar object: From the radio to the optical/NIR to the X-ray band
L. Ighina, A. Caccianiga, A. Moretti, J. W. Broderick, J. K. Leung, S. Paterson, F. Rigamonti, N. Seymour, S. Belladitta, G. Drouart, T. J. Galvin and N. Hurley-Walker Astronomy & Astrophysics 687 A242 (2024) https://doi.org/10.1051/0004-6361/202449369
Investigating the nuclear properties of highly accreting active galactic nuclei with XMM-Newton
G. Lanzuisi, G. Matzeu, P. Baldini, E. Bertola, A. Comastri, F. Tombesi, A. Luminari, V. Braito, J. Reeves, G. Chartas, S. Bianchi, M. Brusa, G. Cresci, E. Nardini, E. Piconcelli, L. Zappacosta, R. Serafinelli, M. Gaspari, R. Gilli, M. Cappi, M. Dadina, M. Perna, C. Vignali and S. Veilleux Astronomy & Astrophysics 689 A247 (2024) https://doi.org/10.1051/0004-6361/202449194
X-Ray Weak Active Galactic Nuclei from Super-Eddington Accretion onto Infant Black Holes
Stripe 82-XL: The ∼54.8 deg2 and ∼18.8 Ms Chandra and XMM-Newton Point-source Catalog and Number of Counts
Alessandro Peca, Nico Cappelluti, Stephanie LaMassa, C. Megan Urry, Massimo Moscetti, Stefano Marchesi, David Sanders, Connor Auge, Aritra Ghosh, Tonima Tasnim Ananna, Núria Torres-Albà and Ezequiel Treister The Astrophysical Journal 974(2) 156 (2024) https://doi.org/10.3847/1538-4357/ad6df4
Probing properties of nearly two-hundred new active galactic nuclei
Samrat Ghosh, Samir Mandal, Sudip Bhattacharyya and Shivam Kumaran Monthly Notices of the Royal Astronomical Society 534(3) 1889 (2024) https://doi.org/10.1093/mnras/stae2208
NGC 7314: X-Ray Study of the Evolving Accretion Properties
Unveiling energy pathways in AGN accretion flows with the warm corona model for the soft excess
D R Ballantyne, V Sudhakar, D Fairfax, S Bianchi, B Czerny, A De Rosa, B De Marco, R Middei, B Palit, P -O Petrucci, A Różańska and F Ursini Monthly Notices of the Royal Astronomical Society 530(2) 1603 (2024) https://doi.org/10.1093/mnras/stae944
X-ray detection of the most extreme star-forming galaxies at the cosmic noon via strong lensing
Q Daniel Wang, Carlos Garcia Diaz, Patrick S Kamieneski, Kevin C Harrington, Min S Yun, Nicholas Foo, Brenda L Frye, Eric F Jimenez-Andrade, Daizhong Liu, James D Lowenthal, Belén Alcalde Pampliega, Massimo Pascale, Amit Vishwas and Mark A Gurwell Monthly Notices of the Royal Astronomical Society 527(4) 10584 (2023) https://doi.org/10.1093/mnras/stad3827
Thermal instability as a constraint for warm X-ray coronas in active galactic nuclei
Disentangling the AGN and Star formation Contributions to the Radio–X-Ray Emission of Radio-loud Quasars at 1 < Z < 2
Mojegan Azadi, Belinda Wilkes, Joanna Kuraszkiewicz, Jonathan McDowell, Ralf Siebenmorgen, Matthew Ashby, Mark Birkinshaw, Diana Worrall, Natasha Abrams, Peter Barthel, Giovanni G. Fazio, Martin Haas, Sóley Hyman, Rafael Martínez-Galarza and Eileen T. Meyer The Astrophysical Journal 945(2) 145 (2023) https://doi.org/10.3847/1538-4357/acbe9c
Dynamics of Molecular Gas in the Central Region of the Quasar I Zwicky 1
Qinyue Fei, Ran Wang, Juan Molina, Jinyi Shangguan, Luis C. Ho, Franz E. Bauer and Ezequiel Treister The Astrophysical Journal 946(1) 45 (2023) https://doi.org/10.3847/1538-4357/acbb05
X-ray Properties of the Luminous Quasar PG 1634+706 at z = 1.337
from SRG and XMM-Newton Data
G. S. Uskov, S. Yu. Sazonov, M. R. Gilfanov, I. Yu. Lapshov and R. A. Sunyaev Письма в Астрономический журнал: Астрономия и космическая астрофизика 49(11) 717 (2023) https://doi.org/10.31857/S0320010823110098
Coordinated X-ray and UV absorption within the accretion disk wind of the active galactic nucleus PG 1126-041
M. Giustini, P. Rodríguez Hidalgo, J. N. Reeves, G. Matzeu, V. Braito, M. Eracleous, G. Chartas, N. Schartel, C. Vignali, P. B. Hall, T. Waters, G. Ponti, D. Proga, M. Dadina, M. Cappi, G. Miniutti and L. de Vries Astronomy & Astrophysics 679 A73 (2023) https://doi.org/10.1051/0004-6361/202244270
An XMM–Newton study of six narrow-line Seyfert 1 galaxies at z = 0.35–0.92
Zhibo Yu, Jiachen Jiang, Cosimo Bambi, et al. Monthly Notices of the Royal Astronomical Society 522(4) 5456 (2023) https://doi.org/10.1093/mnras/stad1327
X-ray Properties of the Luminous Quasar PG 1634+706 at $$z=1.337$$ from SRG and XMM-Newton Data
Bartolomeo Trefoloni, Elisabeta Lusso, Emanuele Nardini, Guido Risaliti, Giada Bargiacchi, Susanna Bisogni, Francesca M. Civano, Martin Elvis, Giuseppina Fabbiano, Roberto Gilli, Alessandro Marconi, Gordon T. Richards, Andrea Sacchi, Francesco Salvestrini, Matilde Signorini and Cristian Vignali Astronomy & Astrophysics 677 A111 (2023) https://doi.org/10.1051/0004-6361/202346024
An X-Ray Census of Fast Radio Burst Host Galaxies: Constraints on Active Galactic Nuclei and X-Ray Counterparts
T. Eftekhari, W. Fong, A. C. Gordon, N. Sridhar, C. D. Kilpatrick, S. Bhandari, A. T. Deller, Y. 雨 欣 Dong 董, A. Rouco Escorial, K. E. Heintz, J. Leja, B. Margalit, B. D. Metzger, A. B. Pearlman, J. X. Prochaska, S. D. Ryder, P. Scholz, R. M. Shannon and N. Tejos The Astrophysical Journal 958(1) 66 (2023) https://doi.org/10.3847/1538-4357/acf843
Survey of Bare Active Galactic Nuclei in the Local Universe (z < 0.2). I. On the Origin of Soft Excess
Prantik Nandi, Arka Chatterjee, Arghajit Jana, Sandip K. Chakrabarti, Sachindra Naik, Samar Safi-Harb, Hsiang-Kuang Chang and Jeremy Heyl The Astrophysical Journal Supplement Series 269(1) 15 (2023) https://doi.org/10.3847/1538-4365/acf4f9
Outskirts of Abell 1795: Probing gas clumping in the intracluster medium
The exploration of the soft X-ray excess in FSRQ 4C+21.35 during the 2014 X-ray flare
Keqin Zhao, Hongxing Yin, Shaoming Hu, Shifeng Huang, Erlin Qiao, Huaqing Cheng, Xu Chen and Jingran Xu Monthly Notices of the Royal Astronomical Society 525(1) 642 (2023) https://doi.org/10.1093/mnras/stad2325
X‐HESS: A large sample of highly accreting serendipitous AGN under the XMM‐Newton microscope
M. Laurenti, F. Tombesi, F. Vagnetti, E. Piconcelli, M. Guainazzi and R. Middei Astronomische Nachrichten 344(4) (2023) https://doi.org/10.1002/asna.20230053
On the Cosmic Evolution of AGN Obscuration and the X-Ray Luminosity Function: XMM-Newton and Chandra Spectral Analysis of the 31.3 deg2 Stripe 82X
Alessandro Peca, Nico Cappelluti, C. Megan Urry, Stephanie LaMassa, Stefano Marchesi, Tonima Tasnim Ananna, Mislav Baloković, David Sanders, Connor Auge, Ezequiel Treister, Meredith Powell, Tracey Jane Turner, Allison Kirkpatrick and Chuan Tian The Astrophysical Journal 943(2) 162 (2023) https://doi.org/10.3847/1538-4357/acac28
Supersoft luminous X-ray sources in galactic nuclei
HYPerluminous quasars at the Epoch of ReionizatION (HYPERION): A new regime for the X-ray nuclear properties of the first quasars
L. Zappacosta, E. Piconcelli, F. Fiore, I. Saccheo, R. Valiante, C. Vignali, F. Vito, M. Volonteri, M. Bischetti, A. Comastri, C. Done, M. Elvis, E. Giallongo, F. La Franca, G. Lanzuisi, M. Laurenti, G. Miniutti, A. Bongiorno, M. Brusa, F. Civano, S. Carniani, V. D’Odorico, C. Feruglio, S. Gallerani, R. Gilli, et al. Astronomy & Astrophysics 678 A201 (2023) https://doi.org/10.1051/0004-6361/202346795
reXcor: a model of the X-ray spectrum of active galactic nuclei that combines ionized reflection and a warm corona
Comparing reflection and absorption models for the soft X-ray variability in the NLS1 AGN UGC 11763
Jiachen Jiang, Luigi C Gallo, Dirk Grupe and Michael L Parker Monthly Notices of the Royal Astronomical Society 516(3) 4256 (2022) https://doi.org/10.1093/mnras/stac2434
XMM-Newton and Swift observations of the Seyfert 1 AGN NGC 5940
A Multiwavelength View of IC 860: What Is in Action inside Quenching Galaxies
*
Yuanze Luo, Kate Rowlands, Katherine Alatalo, Elizaveta Sazonova, Abdurro’uf, Timothy Heckman, Anne M. Medling, Susana E. Deustua, Kristina Nyland, Lauranne Lanz, Andreea O. Petric, Justin A. Otter, Susanne Aalto, Sabrina Dimassimo, K. Decker French, John S. Gallagher III, Joel C. Roediger and Sofia Stepanoff The Astrophysical Journal 938(1) 63 (2022) https://doi.org/10.3847/1538-4357/ac8b7d
Evolution of a Relativistic Outflow and X-Ray Corona in the Extreme Changing-look AGN 1ES 1927+654
Megan Masterson, Erin Kara, Claudio Ricci, Javier A. García, Andrew C. Fabian, Ciro Pinto, Peter Kosec, Ronald A. Remillard, Michael Loewenstein, Benny Trakhtenbrot and Iair Arcavi The Astrophysical Journal 934(1) 35 (2022) https://doi.org/10.3847/1538-4357/ac76c0
Broad-band spectral analysis of Mrk 926 using multi-epoch X-ray observations
S Chalise, A M Lohfink, J Chauhan, T D Russell, D J K Buisson and L Mallick Monthly Notices of the Royal Astronomical Society 517(4) 4788 (2022) https://doi.org/10.1093/mnras/stac2953
Toward a More Complete Optical Census of Active Galactic Nuclei via Spatially Resolved Spectroscopy
Julia M. Comerford, James Negus, R. Scott Barrows, Dominika Wylezalek, Jenny E. Greene, Francisco Müller-Sánchez and Rebecca Nevin The Astrophysical Journal 927(1) 23 (2022) https://doi.org/10.3847/1538-4357/ac496a
A deep 1.4 GHz survey of the J1030 equatorial field: A new window on radio source populations across cosmic time
Is the star-formation rate in z ∼ 6 quasars overestimated?
Fabio Di Mascia, Stefano Carniani, Simona Gallerani, et al. Monthly Notices of the Royal Astronomical Society 518(3) 3667 (2022) https://doi.org/10.1093/mnras/stac3306
A new emulated Monte Carlo radiative transfer disc-wind model: X-Ray Accretion Disc-wind Emulator – xrade
G A Matzeu, M Lieu, M T Costa, J N Reeves, V Braito, M Dadina, E Nardini, P G Boorman, M L Parker, S A Sim, D Barret, E Kammoun, R Middei, M Giustini, M Brusa, J Pérez Cabrera and S Marchesi Monthly Notices of the Royal Astronomical Society 515(4) 6172 (2022) https://doi.org/10.1093/mnras/stac2155
X-ray spectroscopic survey of highly accreting AGN
Are Active Galactic Nuclei in Post-starburst Galaxies Driving the Change or Along for the Ride?
Lauranne Lanz, Sofia Stepanoff, Ryan C. Hickox, Katherine Alatalo, K. Decker French, Kate Rowlands, Kristina Nyland, Philip N. Appleton, Mark Lacy, Anne Medling, John S. Mulchaey, Elizaveta Sazonova and Claudia Megan Urry The Astrophysical Journal 935(1) 29 (2022) https://doi.org/10.3847/1538-4357/ac7d56
Association of optical, ultraviolet, and soft X-ray excess emissions in AGNs
Ionized Outflows in Nearby Quasars Are Poorly Coupled to Their Host Galaxies
Juan Molina, Luis C. Ho, Ran Wang, Jinyi Shangguan, Franz E. Bauer, Ezequiel Treister, Ming-Yang Zhuang, Claudio Ricci and Fuyan Bian The Astrophysical Journal 935(2) 72 (2022) https://doi.org/10.3847/1538-4357/ac7d4d
The properties of the X-ray corona in the distant (z= 3.91) quasar APM 08279+5255
Galactic Winds across the Gas-rich Merger Sequence. I. Highly Ionized N v and O vi Outflows in the QUEST Quasars*
Sylvain Veilleux, David S. N. Rupke, Weizhe Liu, Anthony To, Margaret Trippe, Todd M. Tripp, Fred Hamann, Reinhard Genzel, Dieter Lutz, Roberto Maiolino, Hagai Netzer, Kenneth R. Sembach, Eckhard Sturm, Linda Tacconi and Stacy H. Teng The Astrophysical Journal 926(1) 60 (2022) https://doi.org/10.3847/1538-4357/ac3cbb
Hard X-Ray broadband spectroscopy of Mrk 876: characterizing its spectrum
The 450 Day X-Ray Monitoring of the Changing-look AGN 1ES 1927+654
C. Ricci, M. Loewenstein, E. Kara, R. Remillard, B. Trakhtenbrot, I. Arcavi, K. C. Gendreau, Z. Arzoumanian, A. C. Fabian, R. Li, L. C. Ho, C. L. MacLeod, E. Cackett, D. Altamirano, P. Gandhi, P. Kosec, D. Pasham, J. Steiner and C.-H. Chan The Astrophysical Journal Supplement Series 255(1) 7 (2021) https://doi.org/10.3847/1538-4365/abe94b
Infrared emission of z ∼ 6 galaxies: AGN imprints
F Di Mascia, S Gallerani, C Behrens, et al. Monthly Notices of the Royal Astronomical Society 503(2) 2349 (2021) https://doi.org/10.1093/mnras/stab528
Revealing the Accretion Physics of Supermassive Black Holes at Redshift z ∼ 7 with Chandra and Infrared Observations
Feige Wang, Xiaohui Fan, Jinyi Yang, Chiara Mazzucchelli, Xue-Bing Wu, Jiang-Tao Li, Eduardo Bañados, Emanuele Paolo Farina, Riccardo Nanni, Yanli Ai, Fuyan Bian, Frederick B. Davies, Roberto Decarli, Joseph F. Hennawi, Jan-Torge Schindler, Bram Venemans and Fabian Walter The Astrophysical Journal 908(1) 53 (2021) https://doi.org/10.3847/1538-4357/abcc5e
Exploratory X-Ray Monitoring of Luminous Radio-quiet Quasars at High Redshift: Extended Time-series Analyses and Stacked Imaging Spectroscopy
Marcus O. Thomas, Ohad Shemmer, W. N. Brandt, Maurizio Paolillo, Shai Kaspi, Cristian Vignali, Paulina Lira and Donald P. Schneider The Astrophysical Journal 923(1) 111 (2021) https://doi.org/10.3847/1538-4357/ac2e00
The Nature of Soft Excess in ESO 362-G18 Revealed by XMM-Newton and NuSTAR Spectroscopy
Yerong Xu, Javier A. García, Dominic J. Walton, Riley M. T. Connors, Kristin Madsen and Fiona A. Harrison The Astrophysical Journal 913(1) 13 (2021) https://doi.org/10.3847/1538-4357/abf430
What controls the UV-to-X-ray continuum shape in quasars?
X-ray analysis of SDSS J165202.60+172852.4, an obscured quasar with outflows at peak galaxy formation epoch
Yuzo Ishikawa, Andy D Goulding, Nadia L Zakamska, et al. Monthly Notices of the Royal Astronomical Society 502(3) 3769 (2021) https://doi.org/10.1093/mnras/stab137
The extreme properties of the nearby hyper-Eddington accreting active galactic nucleus in IRAS 04416+1215
Alessia Tortosa, Claudio Ricci, Francesco Tombesi, et al. Monthly Notices of the Royal Astronomical Society 509(3) 3599 (2021) https://doi.org/10.1093/mnras/stab3152
Probing ultradiffuse galaxies out to the virial radius of the Coma cluster with XMM–Newton