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(1 - 17 of 17)
Transient obscuration event captured in NGC 3227
Grafton-Waters, S.; Mao, J.; Mehdipour, M.; Branduardi-Raymont, G.; Page, M.; Kaastra, J.S.; ... ; Ebrero, J. 2023
Transient obscuration event captured in NGC 3227: IV. Origin of the obscuring cloud variability
Article / Letter to editor
open access
Supermassive black hole winds in X-rays: SUBWAYS
Matzeu, G.A.; Brusa, M.; Lanzuisi, G.; Dadina, M.; Bianchi, S.; Kriss, G.; ... ; Merloni, A. 2023
Supermassive black hole winds in X-rays: SUBWAYS: I. Ultra-fast outflows in quasars beyond the local universe
Article / Letter to editor
open access
Supermassive black hole winds in X-rays: SUBWAYS
Mehdipour, M.; Kriss, G.A.; Brusa, M.; Matzeu, G.A.; Gaspari, M.; Kraemer, S.B.; ... ; Zappacosta, L. 2023
Supermassive black hole winds in X-rays: SUBWAYS: II. HST UV spectroscopy of winds at intermediate redshifts
Article / Letter to editor
open access
Detection of an unidentified soft X-ray emission feature in NGC 5548
Gu, L.; Mao, J.; Kaastra, J.S.; Mehdipour, M.; Pinto, C.; Grafton-Waters, S.; ... ; Ward, M. 2022
Detection of an unidentified soft X-ray emission feature in NGC 5548
Article / Letter to editor
open access
Transient obscuration event captured in NGC 3227 III
Mao, J.; Kaastra, J.S.; Mehdipour, M.; Kriss, G.A.; Wang, Y.; Grafton-Waters, S.; ... ; Behar, E. 2022
Transient obscuration event captured in NGC 3227 III: photoionization modeling of the X-ray obscuration event in 2019
Article / Letter to editor
open access
Transient obscuration event captured in NGC 3227. II.
Wang, Y.; Kaastra, J.; Mehdipour, M.; Mao, J.; Costantini, E.; Kriss, G.A.; ... ; He, Z. 2022
Transient obscuration event captured in NGC 3227. II. Warm absorbers and obscuration events in archival XMM-Newton and NuSTAR observations
Article / Letter to editor
open access
Short-timescale X-ray spectral variability in the Seyfert 1 galaxy NGC 3783
Costanzo, D.; Dadina, M.; Vignali, C.; De Marco, B.; Cappi, M.; Petrucci, P.O.; ... ; Matzeu, G.A. 2022
Short-timescale X-ray spectral variability in the Seyfert 1 galaxy NGC 3783
Article / Letter to editor
open access
2023-03-23T00:00:00Z
Transient obscuration event captured in NGC 3227
Mehdipour, M.; Kriss, G.A.; Kaastra, J.S.; Wang, Y.; Mao, J.; Costantini, E.; ... ; Walton, D.J. 2021
Transient obscuration event captured in NGC 3227: I. Continuum model for the broadband spectral energy distribution
Article / Letter to editor
open access
Multi-wavelength campaign on NGC 7469. VI. Photoionisation modelling of the emission line regions and the warm absorber
Grafton-Waters, S.; Branduardi-Raymont, G.; Mehdipour, M.; Page, M.J.; Behar, E.; Kaastra, J.S.; ... ; Ponti, G. 2020
Multi-wavelength campaign on NGC 7469. VI. Photoionisation modelling of the emission line regions and the warm absorber
Article / Letter to editor
open access
Multi-wavelength campaign on NGC 7469. I. The rich 640 ks RGS spectrum
Behar, E.; Peretz, U.; Kriss, G.A.; Kaastra, J.S.; Arav, N.; Bianchi, S.; ... ; Ursini, F. 2017
Multi-wavelength campaign on NGC 7469. I. The rich 640 ks RGS spectrum
Article / Letter to editor
open access
Chasing obscuration in type-I AGN: discovery of an eclipsing clumpy wind at the outer broad-line region of NGC 3783
Mehdipour, M.; Kaastra, J.S.; Kriss, G.A.; Arav, N.; Behar, E.; Bianchi, S.; ... ; Walton, D.J. 2017
Chasing obscuration in type-I AGN: discovery of an eclipsing clumpy wind at the outer broad-line region of NGC 3783
Article / Letter to editor
open access
Anatomy of the AGN in NGC 5548. VII. Swift study of obscuration and broadband continuum variability
Mehdipour, M.; Kaastra, J.S.; Kriss, G.A.; Cappi, M.; Petrucci, P.-O.; De Marco, B.; ... ; Whewell, M. 2016
Anatomy of the AGN in NGC 5548. VII. Swift study of obscuration and broadband continuum variability
Article / Letter to editor
open access
Anatomy of the AGN in NGC 5548. VIII. XMM-Newton's EPIC detailed view of an unexpected variable multilayer absorber
Cappi, M.; De Marco, B.; Ponti, G.; Ursini, F.; Petrucci, P.-O.; Bianchi, S.; ... ; Walton, D.J. 2016
Anatomy of the AGN in NGC 5548. VIII. XMM-Newton's EPIC detailed view of an unexpected variable multilayer absorber
Article / Letter to editor
open access
Multiwavelength campaign on Mrk 509. XV. A global modeling of the broad emission lines in the optical, UV, and X-ray bands
Costantini, E.; Kriss, G.A.; Kaastra, J.S.; Bianchi, S.; Branduardi-Raymont, G.; Cappi, M.; ... ; Arav, N. 2016
Multiwavelength campaign on Mrk 509. XV. A global modeling of the broad emission lines in the optical, UV, and X-ray bands
Article / Letter to editor
open access
Anatomy of the AGN in NGC 5548. IV. The short-term variability of the outflows
Di Gesu, L.; Costantini, E.; Ebrero, J.; Mehdipour, M.; Kaastra, J.S.; Ursini, F.; ... ; Whewell, M. 2015
Anatomy of the AGN in NGC 5548. IV. The short-term variability of the outflows
Article / Letter to editor
open access
Anatomy of the AGN in NGC 5548. V. A clear view of the X-ray narrow emission lines
Whewell, M.; Branduardi-Raymont, G.; Kaastra, J.S.; Mehdipour, M.; Steenbrugge, K.C.; Bianchi, S.; ... ; Ponti, G. 2015
Anatomy of the AGN in NGC 5548. V. A clear view of the X-ray narrow emission lines
Article / Letter to editor
open access
Multiwavelength campaign on Mrk 509. XIV. Chandra HETGS spectra
Kaastra, J.S.; Ebrero, J.; Arav, N.; Behar, E.; Bianchi, S.; Branduardi-Raymont, G.; ... ; Vries, C. 2014
Multiwavelength campaign on Mrk 509. XIV. Chandra HETGS spectra
Article / Letter to editor
open access