Results 71 to 80 of about 87,894 (300)

X-ray Photons in the CO 2-1 'Lacuna' of NGC 2110

open access: yes, 2019
A recent ALMA study of the Seyfert 2 Active Galactic Nucleus (AGN) NGC 2110 by Rosario et al. (2019) has reported a remarkable lack of CO 2-1 emission from the circumnuclear region, where optical lines and H2 emission are observed, leading to the ...
Elvis, M., Fabbiano, G., Paggi, A.
core   +1 more source

Active Galactic Nucleus Feedback in an Elliptical Galaxy with the Most Updated AGN Physics. I. Low Angular Momentum Case [PDF]

open access: yes, 2017
We investigate the effects of AGN feedback on the cosmological evolution of an isolated elliptical galaxy by performing two-dimensional high-resolution hydrodynamical numerical simulations. The inner boundary of the simulation is chosen so that the Bondi
F. Yuan   +5 more
semanticscholar   +1 more source

Fast Neutron Detector Based on Hybrid 2D Perovskite Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
This work presents the direct detection of fast neutrons using flexible hybrid 2D perovskite (PEA2PbBr4) thin‐film detectors. Thanks to their high low‐Z elements content and good charge transport, these materials enable efficient neutron detection. The thin film configuration allowed the operation at low voltage, and offer scalability, flexibility, and
Ilaria Fratelli   +11 more
wiley   +1 more source

The Spatially Uniform Spectrum of the Fermi Bubbles: The Leptonic Active Galactic Nucleus Jet Scenario [PDF]

open access: yes, 2017
The Fermi bubbles are among the most important findings of the Fermi Gamma-ray Space Telescope; however, their origin is still elusive. One of the unique features of the bubbles is that their gamma-ray spectrum, including a high-energy cutoff at ∼110 GeV
H. Yang, M. Ruszkowski
semanticscholar   +1 more source

Ultrafast Laser Synthesis of Zeolites

open access: yesAdvanced Materials, EarlyView.
The study presents a novel ultrafast laser‐driven synthesis technique for zeolites directly in liquid. Laser pulses create a microscopic reactor that controls reaction kinetics at femto‐ and picosecond timescales. Nonlinear light‐matter interactions drive nucleation and growth, allowing the process to be paused at any stage of self‐assembly.
Sezin Galioglu   +11 more
wiley   +1 more source

OUTFLOWING DIFFUSE GAS IN THE ACTIVE GALACTIC NUCLEUS OF NGC 1068 [PDF]

open access: yesThe Astrophysical Journal, 2015
Accepted by ApJ 2 Sep ...
T. R. Geballe, R. E. Mason, T. Oka
openaire   +4 more sources

Powerful outflows in the central parsecs of the low-luminosity active galactic nucleus NGC 1386 [PDF]

open access: yes, 2017
Low-luminosity Active Galactic Nuclei, i.e. L_bol/L_edd ~ 10^-6 - 10^-3, constitute the bulk population of Active Galactic Nuclei (AGNs). Powerful jets, common in these objects, are a crucial source of feedback energy driving mass outflows into the host ...
A. Rodr'iguez-Ardila   +14 more
semanticscholar   +1 more source

How to Manufacture Photonic Metamaterials

open access: yesAdvanced Materials Technologies, EarlyView.
Metamaterials boast applications such as invisibility and “hyperlenses” with resolution beyond the diffraction limit, but these applications haven’t been exploited in earnest and the market for them hasn’t grown much likely because facile and economical methods for fabricating them without defect has not emerged.
Apurba Paul, Gregory Timp
wiley   +1 more source

ON THE HOST GALAXY OF GRB 150101B AND THE ASSOCIATED ACTIVE GALACTIC NUCLEUS [PDF]

open access: yesThe Astrophysical Journal Letters, 2016
ABSTRACT We present a multi-wavelength analysis of the host galaxy of short-duration gamma-ray burst (GRB) 150101B. Follow-up optical and X-ray observations suggested that the host galaxy, 2MASX J12320498-1056010, likely harbors low-luminosity active galactic nuclei (AGNs).
Taotao Fang   +5 more
openaire   +4 more sources

Prior-informed Active Galactic Nucleus Host Spectral Decomposition Using PyQSOFit

open access: yesThe Astrophysical Journal
We introduce an improved method for decomposing the emission of active galactic nuclei (AGN) and their host galaxies using templates from principal component analysis (PCA).
Wenke Ren   +6 more
doaj   +1 more source

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