NuSTAR survey of obscured swift/BAT-selected active galactic nuclei. II. Median high-energy cutoff in seyfert II hard X-ray spectra
M Baloković, FA Harrison, G Madejski… - The Astrophysical …, 2020 - iopscience.iop.org
Broadband X-ray spectroscopy of the X-ray emission produced in the coronae of active
galactic nuclei (AGNs) can provide important insights into the physical conditions very close …
galactic nuclei (AGNs) can provide important insights into the physical conditions very close …
Evolution of a relativistic outflow and X-ray corona in the extreme changing-look AGN 1ES 1927+ 654
Abstract 1ES 1927+ 654 is a paradigm-defying active galactic nucleus (AGN) and one of the
most peculiar X-ray nuclear transients. In early 2018, this well-known AGN underwent a …
most peculiar X-ray nuclear transients. In early 2018, this well-known AGN underwent a …
The X-ray coronae in NuSTAR bright active galactic nuclei
JL Kang, JX Wang - The Astrophysical Journal, 2022 - iopscience.iop.org
We present a systematic and uniform analysis of NuSTAR data of a sample of 60 SWIFT BAT-
selected AGNs with 10–78 keV signal-to-noise ratio (S/N)> 50, 10 of which are radio loud …
selected AGNs with 10–78 keV signal-to-noise ratio (S/N)> 50, 10 of which are radio loud …
The first simultaneous X-ray broadband view of Mrk 110 with XMM-Newton and NuSTAR
D Porquet, JN Reeves, N Grosso, V Braito… - Astronomy & …, 2021 - aanda.org
Context. Soft and hard X-ray excesses, compared to the continuum power-law shape
between∼ 2− 10 keV, are common features observed in the spectra of active galactic nuclei …
between∼ 2− 10 keV, are common features observed in the spectra of active galactic nuclei …
NuSTAR hard X-ray spectra of radio galaxies
J Kang, J Wang, W Kang - The Astrophysical Journal, 2020 - iopscience.iop.org
Abstract The Nuclear Spectroscopic Telescope Array (NuSTAR) observatory, with its 3–78
keV broadband spectral coverage, enables the detection of the high-energy cutoff in a …
keV broadband spectral coverage, enables the detection of the high-energy cutoff in a …
Search for coronal temperature variation in Seyfert galaxies
I Pal, CS Stalin - Monthly Notices of the Royal Astronomical …, 2023 - academic.oup.com
While the temperature of the X-ray corona (kT e) in active galactic nuclei (AGNs) is known for
many sources, its variation if any is limited to a handful of objects. This is in part due to the …
many sources, its variation if any is limited to a handful of objects. This is in part due to the …
Radiatively Driven Clumpy X-Ray Absorbers in the NLS1 Galaxy IRAS 13224-3809
T Midooka, M Mizumoto, K Ebisawa - The Astrophysical Journal, 2023 - iopscience.iop.org
Recent radiation-magnetohydrodynamic simulations of active galactic nuclei predict the
presence of the disk winds, which may become unstable and turn into fragmented clumps far …
presence of the disk winds, which may become unstable and turn into fragmented clumps far …
NuSTAR spectral analysis of three Seyfert galaxies: NGC 3227, NGC 5548, and MR 2251− 178
Context. The observed nuclear X-ray emission in the radio-quiet category of active galactic
nuclei (AGN) is believed to be from a compact region, the corona, which is situated in the …
nuclei (AGN) is believed to be from a compact region, the corona, which is situated in the …
Distinct high-energy cutoff variation patterns in two Seyfert galaxies
JL Kang, JX Wang, WY Kang - Monthly Notices of the Royal …, 2021 - academic.oup.com
Investigating how the cut-off energy E cut varies with X-ray flux and photon index Γ in
individual active galactic nuclei (AGNs) opens a new window to probe the yet unclear …
individual active galactic nuclei (AGNs) opens a new window to probe the yet unclear …
X-ray spectral and timing analysis of the Compton Thick Seyfert 2 galaxy NGC 1068
We present the timing and spectral analysis of the Compton Thick Seyfert 2 active galactic
nuclei NGC 1068 observed using NuSTAR and XMM–Newton. In this work for the first time …
nuclei NGC 1068 observed using NuSTAR and XMM–Newton. In this work for the first time …