The Role of Active Galactic Nuclei in the Quenching of Massive Galaxies in the SQuIGG E Survey [PDF]
Astrophysical Journal, 2020 We study the incidence of nuclear activity in a large sample of massive post-starburst (PSB) galaxies at selected from the Sloan Digital Sky Survey, and identify active galactic nuclei based on radio continuum and optical emission lines.
J. Greene +7 more
semanticscholar +1 more source
Milky Way scattering properties and intrinsic sizes of active galactic nuclei cores probed by very long baseline interferometry surveys of compact extragalactic radio sources [PDF]
, 2015 We have measured the angular sizes of radio cores of active galactic nuclei (AGN) and analyzed their sky distributions and frequency dependencies to study synchrotron opacity in AGN jets and the strength of angular broadening in the interstellar medium ...
A. Pushkarev, Y. Kovalev
semanticscholar +1 more source
Discovery of millimetre-wave excess emission in radio-quiet active galactic nuclei [PDF]
, 2015 The physical origin of radio emission in Radio Quiet Active Galactic Nuclei (RQ AGN) remains unclear, whether it is a downscaled version of the relativistic jets typical of Radio Loud (RL) AGN, or whether it originates from the accretion disk.
E. Behar +9 more
semanticscholar +1 more source
Fast Neutron Detector Based on Hybrid 2D Perovskite Thin Films
Advanced 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
Changing-Look AGNs or Short-Lived Radio Sources?
Frontiers in Astronomy and Space Sciences, 2017 The evolution of extragalactic radio sources has been a fundamental problem in the study of active galactic nuclei for many years. A standard evolutionary model has been created based on observations of a wide range of radio sources.
Aleksandra Wołowska +3 more
doaj +1 more source
The many lives of active galactic nuclei: cooling flows, black holes and the luminosities and colour [PDF]
, 2005 We simulate the growth of galaxies and their central supermassive black holes by implementing a suite of semi-analytic models on the output of the Millennium Run, a very large simulation of the concordance A cold dark matter cosmogony.
D. Croton +9 more
semanticscholar +1 more source
Ultrafast Laser Synthesis of Zeolites
Advanced 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
Mid-infrared Properties of Narrow-line Seyfert 1 Galaxies Detected by LoTSS DR2
The Astrophysical JournalNarrow-line Seyfert 1 galaxies (NLS1s), a subclass of active galactic nuclei (AGNs) in an early stage of the accretion process, are also found to host relativistic jets. However, currently known jetted NLS1s are rare. The majority of NLS1s are undetected
Xu-Liang Fan
doaj +1 more source
Probing the Jet–Torus Interaction in the Radio Galaxy NGC 1052 by Sulfur-bearing Molecules
The Astrophysical Journal, 2023 The radio galaxy NGC 1052 casts absorption features of sulfur-bearing molecules, H _2 S, SO, SO _2 , and CS toward the radio continuum emission from the core and jets.
Seiji Kameno +10 more
doaj +1 more source
INVISIBLE ACTIVE GALACTIC NUCLEI. II. RADIO MORPHOLOGIES AND FIVE NEW H i 21 cm ABSORPTION LINE DETECTORS [PDF]
, 2015 This is the second paper directed toward finding new highly redshifted atomic and molecular absorption lines at radio frequencies. To this end, we selected a sample of 80 candidates for obscured radio-loud active galactic nuclei (AGNs) and presented ...
T. Yan +5 more
semanticscholar +1 more source