Results 41 to 50 of about 80,128 (249)

Cluster magnetic fields from active galactic nuclei

, 2009
Active galactic nuclei (AGN) found at the centers of clusters of galaxies are a possible source for weak cluster-wide magnetic fields. To evaluate this scenario, we present 3D adaptive mesh refinement MHD simulations of a cool-core cluster that include ...
Ricker, P. M., Sutter, P. M., Yang, H. -Y.   +2 more
core   +1 more source

Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. XII. Reverberation Mapping Results for 15 PG Quasars from a Long-duration High-cadence Campaign [PDF]

, 2021
Chen Hu, Shasha Li, Sen Yang, Zi-Xu Yang, Wei-Jian Guo, Dong-Wei Bao, Bo-Wei Jiang, Pu Du, Yan-Rong Li, Ming Xiao, Yu-Yang Songsheng, Zhe Yu, Jin‐Ming Bai, Luis C. Ho, M. S. Brotherton, J. Aceituno, Hartmut Winkler, Jian‐Min Wang   +17 more
openalex   +1 more source

Device Performance of Emerging Photovoltaic Materials (Version 6)

Advanced Energy Materials, EarlyView.
Efficiency of single junction perovskite (circles), organic (hexagons), dye sensitized (pentagons), kesterite (diamonds), Sb2Se3 (right triangle), and AgBiS2 (left triangles) solar cells at emerging‐pv.org over the last decade. ABSTRACT This 6th annual Emerging PV Report surveys peer‐reviewed advances since August 2024 across perovskite, organic ...
Osbel Almora, Agustin O. Alvarez, Derya Baran, Carlos I. Cabrera, Luigi A. Castriotta, Bruno Ehrler, Sule Erten‐Ela, Kenjiro Fukuda, Fei Guo, Jens Hauch, Anita W.Y. Ho‐Baillie, T. Jesper Jacobsson, Rene A. J. Janssen, Thomas Kirchartz, Maria A. Loi, Richard R. Lunt, Xavier Mathew, Jie Min, David B. Mitzi, Mohammad K. Nazeeruddin, Ana F. Nogueira, Ulrich W. Paetzold, Nam‐Gyu Park, Barry P. Rand, Henry Snaith, Takao Someya, Christian Sprau, Lulu Sun, Karen Forberich, Christoph J. Brabec   +29 more
wiley   +1 more source

A UV to X-Ray View of Soft Excess in Type 1 Active Galactic Nuclei. I. Sample Selection and Spectral Profile

The Astrophysical Journal
A core sample of 59 unobscured type 1 active galactic nuclei (AGNs) with simultaneous XMM-Newton X-ray and UV observations is compiled from the archives to probe the nature of soft X-ray excess (SE).
Shi-Jiang Chen, Jun-Xian Wang, Jia-Lai Kang, Wen-Yong Kang, Hao Sou, Teng Liu, Zhen-Yi Cai, Zhen-Bo Su   +7 more
doaj   +1 more source

Active Galactic Nuclei as High Energy Engines [PDF]

, 1999
Active Galactic Nuclei are considered as possible sites of cosmic ray acceleration and some of them have been observed as high energy gamma ray emitters (Blazars). There naturally comes an appealing idea that the acceleration of the highest energy cosmic
Aharonian, Blandford, Blandford, Blanford, Dermer, Dermer, G. Henri, G. Pelletier, Ghisellini, Henri, Henri, Jokipii, Jones, Lichti, Mannheim, Marcowith, Marcowith, Montigny, N. Renaud, P.O. Petrucci, Pelletier, Pelletier, Pian, Protheroe, Ragot, Renaud, Rosso, Salamon, Schlickeiser, Shakura, Sikora, Wardle   +31 more
core   +3 more sources

Deep Learning‐Assisted Coherent Raman Scattering Microscopy

Advanced Intelligent Discovery, EarlyView.
The analytical capabilities of coherent Raman scattering microscopy are augmented through deep learning integration. This synergistic paradigm improves fundamental performance via denoising, deconvolution, and hyperspectral unmixing. Concurrently, it enhances downstream image analysis including subcellular localization, virtual staining, and clinical ...
Jianlin Liu, Rujia Liu, Xinyan Zhang, Xun Chen, Shuhua Yue   +4 more
wiley   +1 more source

The Halo Occupation Distribution Modeling of X-Ray-selected Active Galactic Nuclei at 0.6 < z < 2.6 in the COSMOS Field

The Astrophysical Journal
We conduct precise measurements of active galactic nucleus (AGN) clustering at z ∼ 1 and z ∼ 2 by measuring the two-point cross-correlation function (CCF) between galaxies and X-ray-selected AGNs, and the two-point autocorrelation function (ACF) of ...
Hiroyuki Ikeda, Takamitsu Miyaji, Taira Oogi, Yoshiki Toba, Héctor Aceves, Stefano Marchesi, Viola Allevato, Akke Viitanen, Francesca Civano   +8 more
doaj   +1 more source

The parsec scale region of Active Galactic Nuclei in the IR [PDF]

, 2004
First results from the AGN-Heidelberg program aimed at spatially resolving the central pc region of the closest Active Galactic Nuclei are presented. The core region of prototype active nuclei are clearly unveiled at IR waves and at distances from the ...
Meisenheimer, Klaus, Prieto, M. Almudena
core   +2 more sources

Early evolutionary history of the seed

Biological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman, Alan R. T. Spencer, Jason Hilton   +2 more
wiley   +1 more source

NuSTAR Observation of the TeV-detected Radio Galaxy 3C 264: Core Emission and the Hot Accretion Flow Contribution

The Astrophysical Journal
3C 264 is one of the few FRI radio galaxies with detected TeV emission. It is a low-luminosity active galactic nucleus (LLAGN) and is generally associated with a radiatively inefficient accretion flow (RIAF).
Ka-Wah Wong, Colin M. Steiner, Allison M. Blum, Dacheng Lin, Rodrigo Nemmen, Jimmy A. Irwin, Daniel R. Wik   +6 more
doaj   +1 more source