GK
Gerard A. Kriss
astro-ph.HEastro-ph.GAastro-phastro-ph.COastro-ph.IMastro-ph.SRastro-ph.EPphysics.atom-phphysics.plasm-ph
On Valency
published · living versionsW_687hmvzb·v1 · currentpublished
NGC 3227 Blinks: An Extreme Changing-Look Event in a Seyfert Galaxy
with Kaiwen Zhang, Michael S. Brotherton, Pu Du, Dong-Wei Bao +8
1 version
Preprints & journals
171 papers in the corpus · 1995–2026NGC 3227 Blinks: An Extreme Changing-Look Event in a Seyfert Galaxy2610.29137v1 · Kaiwen Zhang, Michael S. Brotherton, Pu Du et al.2026 · 0 citationsarXivon Valency
Supermassive Black Hole Winds in X-rays -- SUBWAYS. VI. Interplay between the soft X-ray excess and ultra-fast outflows2610.26936v1 · V. E. Gianolli, P-O. Petrucci, S. Bianchi et al.2026 · 0 citationsarXiv
Dissecting the Nuclear Structure of NGC 5548 with XRISM. I. Physical Properties of the Highly Ionized Outflows2608.05098v1 · Missagh Mehdipour, Jon M. Miller, Jelle S. Kaastra et al.2026 · 0 citationsarXiv
AGN STORM 2. XII. Ground-Based Optical Photometry and Lag Measurements of Mrk 8172605.02875v1 · John W. Montano, Aaron J. Barth, Keith Horne et al.2026 · 0 citationsarXiv
Supermassive Black Hole Winds in X-rays: SUBWAYS IV. Tracing Radio Emission and Unveiling the Role of Winds2604.21405v3 · E. Amenta, M. Brienza, G. Bruni et al.2026 · 0 citationsA&A 710, A295 (2026)
Supermassive Black Hole Winds in X-rays: SUBWAYS V. Properties of hot coronae in quasars at intermediate redshift2603.18156v1 · S. Peluso, G. Lanzuisi, A. Comastri et al.2026 · 0 citationsarXiv
The dynamic central environment of NGC 3516 revealed by XRISM2512.07950v1 · Anna Jur'anov'a, Erin Kara, Ehud Behar et al.2025 · 0 citationsarXiv
AGN STORM 2. XI. Spectroscopic reverberation mapping of the hot dust in Mrk 8172510.21395v1 · Hermine Landt, Benjamin D. Boizelle, Michael S. Brotherton et al.2025 · 1 citationarXiv
The Accretion Disk Size Problem in AGN Disk Reverberation Mapping is an Obscuration Effect: A Uniform AGN Sample Study with Swift2509.25315v1 · Collin Lewin, Erin Kara, Christos Panagiotou et al.2025 · 3 citationsarXiv
AGN STORM 2: X. The origin of the interband continuum delays in Mrk 8172410.02652v2 · Hagai Netzer, Michael R. Goad, Aaron J. Barth et al.2024 · 12 citationsarXiv
AGN STORM 2. VII. A Frequency-resolved Map of the Accretion Disk in Mrk 817: Simultaneous X-ray Reverberation and UVOIR Disk Reprocessing Time Lags2409.09115v1 · Collin Lewin, Erin Kara, Aaron J. Barth et al.2024 · 20 citationsApJ 974 271 (2024)
AGN STORM 2: VIII. Investigating the Narrow Absorption Lines in Mrk 817 Using HST-COS Observations2407.04164v2 · Maryam Dehghanian, Nahum Arav, Gerard A. Kriss et al.2024 · 5 citationsarXiv
AGN STORM 2: IX. Studying the Dynamics of the Ionized Obscurer in Mrk 817 with High-resolution X-ray Spectroscopy2406.17061v1 · Fatima Zaidouni, Erin Kara, Peter Kosec et al.2024 · 11 citationsarXiv
The outflowing ionised gas of I Zw 1 observed by HST COS2404.10060v1 · A. Jur'anov'a, E. Costantini, G. A. Kriss et al.2024 · 4 citationsarXiv
Supermassive Black Hole Winds in X-rays -- SUBWAYS. III. A population study on ultra-fast outflows2403.09538v2 · V. E. Gianolli (1, S. Bianchi, P-O Petrucci et al.2024 · 21 citationsA&A 687, A235 (2024)
First High-Resolution Spectroscopy of X-ray Absorption Lines in the Obscured State of NGC 55482401.03019v1 · Missagh Mehdipour, Gerard A. Kriss, Jelle S. Kaastra et al.2024 · 6 citationsarXiv
Study of the optical to X-ray broad emission lines of Mrk 1102311.03459v1 · A. Jur'anov'a, E. Costantini, L. Di Gesu et al.2023 · 4 citationsA&A 681, A101 (2024)
BAL Outflow in Quasar B0254-3327B: Analysis and Comparison with Other Extreme UV Outflows2310.03588v2 · Doyee Byun, Nahum Arav, Maryam Dehghanian et al.2023 · 4 citationsarXiv
AGN STORM 2. VI. Mapping Temperature Fluctuations in the Accretion Disk of Mrk 8172310.01497v1 · Jack M. M. Neustadt, Christopher S. Kochanek, John Montano et al.2023 · 17 citationsarXiv
AGN STORM 2: V. Anomalous Behavior of the CIV Light Curve in Mrk 8172308.00742v3 · Y. Homayouni, Gerard A. Kriss, Gisella De Rosa et al.2023 · 0 citationsarXiv
AGN STORM 2. IV. Swift X-ray and ultraviolet/optical monitoring of Mrk 8172306.17663v2 · Edward M. Cackett, Jonathan Gelbord, Aaron J. Barth et al.2023 · 33 citationsarXiv
Dimming of Continuum Captured in Mrk 841: New Clues on the Nature of the Soft X-ray Excess2306.11960v2 · Missagh Mehdipour, Gerard Kriss, Jelle Kaastra et al.2023 · 13 citations2023, ApJL, 952, L5
The James Webb Space Telescope Mission2304.04869v1 · Jonathan P. Gardner, John C. Mather, Randy Abbott et al.2023 · 505 citationsarXiv
Detection of Dust in High-Velocity Cloud Complex C -- Enriched Gas Accreting onto the Milky Way2303.12577v2 · Andrew J. Fox, Frances H. Cashman, Gerard A. Kriss et al.2023 · 14 citationsApJL, 946, L48 (2023)
Transient obscuration event captured in NGC 3227 IV. Origin of the obscuring cloud variability2303.04717v2 · S. Grafton-Waters, J. Mao, M. Mehdipour et al.2023 · 7 citationsA&A 673, A26 (2023)
AGN STORM 2. III. A NICER view of the variable X-ray obscurer in Mrk 8172302.12896v1 · Ethan R. Partington, Edward M. Cackett, Erin Kara et al.2023 · 20 citationsApJ 947 2 (2023)
AGN STORM 2: II. Ultraviolet Observations of Mrk817 with the Cosmic Origins Spectrograph on the Hubble Space Telescope2302.11587v1 · Y. Homayouni, Gisella De Rosa, Rachel Plesha et al.2023 · 17 citationsarXiv
UV/Optical disk reverberation lags despite a faint X-ray corona in the AGN Mrk 3352302.07342v1 · Erin Kara, Aaron J. Barth, Edward M. Cackett et al.2023 · 41 citationsarXiv
Supermassive Black Hole Winds in X-rays -- SUBWAYS. I. Ultra-fast outflows in QSOs beyond the local Universe2212.02960v1 · G. A. Matzeu, M. Brusa, G. Lanzuisi et al.2022 · 56 citationsarXiv
Supermassive Black Hole Winds in X-rays: SUBWAYS. II. HST UV spectroscopy of winds at intermediate redshifts2212.02961v1 · M. Mehdipour, G. A. Kriss, M. Brusa et al.2022 · 13 citationsarXiv
Multi-wavelength observations of the obscuring wind in the radio-quiet quasar MR 2251-1782210.05939v1 · Junjie Mao, G. A. Kriss, H. Landt et al.2022 · 17 citationsarXiv
10-Year Transformation of the Obscuring Wind in NGC 55482207.09464v1 · Missagh Mehdipour, Gerard A. Kriss, Elisa Costantini et al.2022 · 18 citationsarXiv
Transient obscuration event captured in NGC 3227 III. Photoionization modeling of the X-ray obscuration event in 20192204.06813v1 · Junjie Mao, J. S. Kaastra, M. Mehdipour et al.2022 · 13 citationsA&A 665, A72 (2022)
A radio, optical, UV and X-ray view of the enigmatic changing look Active Galactic Nucleus 1ES~1927+654 from its pre- to post-flare states2203.07446v1 · Sibasish Laha (NASA-GSFC), Eileen Meyer, Agniva Roychowdhury et al.2022 · 46 citationsarXiv
UV counterpart of an X-ray ultra-fast outflow in IRAS 17020+45442202.08405v1 · Missagh Mehdipour, Gerard A. Kriss, Yair Krongold et al.2022 · 9 citationsarXiv
Short time-scale X-ray spectral variability in the Seyfert 1 galaxy NGC 37832112.09096v1 · D. Costanzo, M. Dadina, C. Vignali et al.2021 · 8 citationsarXiv
Changing-look event in NGC 3516: continuum or obscuration variability?2112.06297v1 · Missagh Mehdipour, Gerard A. Kriss, Laura W. Brenneman et al.2021 · 31 citationsarXiv
The Paschen Jump as a Diagnostic of the Diffuse Nebular Continuum Emission in Active Galactic Nuclei2111.03090v2 · Hengxiao Guo, Aaron J. Barth, Kirk T. Korista et al.2021 · 15 citationsarXiv
Transient obscuration event captured in NGC~3227 II. Warm absorbers and obscuration events in archival XMM-Newton and NuSTAR observations2110.07861v1 · Yijun Wang, Jelle Kaastra, Missagh Mehdipour et al.2021 · 24 citationsA&A 657, A77 (2022)
Multi-epoch properties of the warm absorber in the Seyfert 1 galaxy NGC 9852107.05676v1 · J. Ebrero, V. Domcek, G. A. Kriss et al.2021 · 5 citationsA&A 653, A125 (2021)
Transient obscuration event captured in NGC 3227. I. Continuum model for the broadband spectral energy distribution2106.14957v1 · M. Mehdipour, G. A. Kriss, J. S. Kaastra et al.2021 · 23 citationsA&A 652, A150 (2021)
AGN STORM 2: I. First results: A Change in the Weather of Mrk 8172105.05840v1 · Erin Kara, Missagh Mehdipour, Gerard A. Kriss et al.2021 · 120 citationsarXiv
Ionized outflows from active galactic nuclei as the essential elements of feedback2012.06945v1 · Sibasish Laha (NASA/GSFC), Christopher S. Reynolds, James Reeves et al.2020 · 192 citationsarXiv
Lifting the curtain: The Seyfert galaxy Mrk 335 emerges from deep low-state in a sequence of rapid flare events2011.04996v1 · S. Komossa, D. Grupe, L.C. Gallo et al.2020 · 27 citationsarXiv
The Contribution of Quasar Absorption Outflows to AGN Feedback2009.11851v1 · Timothy R. Miller, Nahum Arav, Xinfeng Xu et al.2020 · 21 citationsarXiv
Tracking the year-to-year variation in the spectral energy distribution of the Narrow-line Seyfert 1 Galaxy Mrk3352009.05705v1 · S. Tripathi, K. M. McGrath, L. C. Gallo et al.2020 · 22 citationsarXiv
Intensive disc-reverberation mapping of Fairall 9: 1st year of Swift & LCO monitoring2008.02134v1 · J. V. Hern'andez Santisteban, R. Edelson, K. Horne et al.2020 · 105 citationsarXiv
HST/COS Observations of Quasar Outflows in the 500-1050 Angstrom Rest Frame: VII. Distances and Energetics for 11 Outflows in Five Quasars2006.13027v1 · Timothy R. Miller, Nahum Arav, Xinfeng Xu et al.2020 · 8 citationsarXiv
Space Telescope and Optical Reverberation Mapping Project. XI. Disk-wind characteristics and contributions to the very broad emission lines of NGC 55482006.06615v1 · M. Dehghanian, G. J. Ferland, G. A. Kriss et al.2020 · 18 citationsarXiv
HST/COS Observations of Quasar Outflows in the 500-1050 Å\ Rest Frame: V. Richness of Physical Diagnostics and Ionization Potential-dependent Velocity Shift in PKS J0352-07112003.08692v1 · Timothy R. Miller, Nahum Arav, Xinfeng Xu et al.2020 · 18 citationsApJS 247 (2020) 41
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