Results 111 to 120 of about 242,882 (259)

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

Evidence for Toroidal B-Field Components in AGN Jets on Kiloparsec Scales

Galaxies, 2017
Though helical magnetic fields are generally believed to arise when the jets of Active Galactic Nuclei (AGN) are launched, it is still unclear what role they play (and if they survive) to the largest jet scales.
Sebastian Knuettel, Denise Gabuzda, Shane P. O’Sullivan   +2 more
doaj   +1 more source

The Radio Structure of the γ-Ray Narrow-line Seyfert 1 Galaxy SDSS J211852.96-073227.5

The Astrophysical Journal, 2023
The γ -ray narrow-line Seyfert 1 (NLS1) galaxies can be considered to be the third class of γ -ray active galactic nuclei possessing relativistic jets. In this paper, we present multi-band high-resolution Very Long Baseline Array (VLBA) images of the γ ...
Xi Shao, Minfeng Gu, Yongjun Chen, Hui Yang, Su Yao, Weimin Yuan, Zhiqiang Shen   +6 more
doaj   +1 more source

The wavelength dependence of polarization in active galactic nuclei [PDF]

arXiv, 2003
Using the gaseous disk model and the condition for emission based on a stimulated origin of thermal radio emission (Prigara 2003), we received the wavelength dependence of polarization for radio emission from active galactic nuclei consistent with available observational data.
arxiv  

The jet-disc connection: evidence for a reinterpretation in radio loud and radio quiet active galactic nuclei [PDF]

, 2013
To constrain models of the jet-disc connection, we explore Eddington ratios reported in Foschini (2011) and interpret them in relation to the values in Sikora et al. across the active galactic nuclei population from radio loud quasars, their flat spectrum radio quasar subclass, the recently discovered gamma-ray loud narrow-line type 1 Seyfert galaxies,
arxiv   +1 more source

Nano‐Topography Enhanced Topological‐Cell‐Analysis in Radiation‐Therapy

Advanced Healthcare Materials, Volume 14, Issue 12, May 6, 2025.
Radiotherapy, a treatment that implies exposition of cells to radiation, offers promise to treat cancer. Here, it is hypothesized that the nanoscale details of a scaffold can amplify the response of cells to radiation, measured through topological variables, providing ways to assess the efficacy of Radiotherapy treatment.
Francesca Pagliari, Maria‐Francesca Spadea, Pierre Montay‐Gruel, Anggraeini Puspitasari‐Kokko, Joao Seco, Luca Tirinato, Angelo Accardo, Francesco De Angelis, Francesco Gentile   +8 more
wiley   +1 more source

Significant core shift variability in parsec-scale jets of active galactic nuclei [PDF]

Monthly notices of the Royal Astronomical Society, 2018
The apparent position of jet base (core) in radio-loud active galactic nuclei changes with frequency because of synchrotron self-absorption. Studying this `core shift` effect enables us to reconstruct properties of the jet regions close to the central ...
A. Plavin, A. Plavin, Y. Kovalev, Y. Kovalev, Y. Kovalev, A. Pushkarev, A. Lobanov, A. Lobanov   +7 more
semanticscholar   +1 more source

VLA FRAMEx. I. Wideband Radio Properties of the AGN in NGC 4388

The Astrophysical Journal
We present the first results from Karl G. Jansky Very Large Array (VLA) observations as a part of the Fundamental Reference Active Galactic Nucleus (AGN) Monitoring Experiment, a program to understand the relationship between AGN accretion physics and ...
Andrew J. Sargent, Travis C. Fischer, Megan C. Johnson, Alexander J. van der Horst, Nathan J. Secrest, Onic I. Shuvo, Phil J. Cigan, Krista L. Smith   +7 more
doaj   +1 more source

Insights into pathophysiology, biomarkers, and therapeutics in tauopathies: Proceedings of the Tau2024 Global Conference

Alzheimer's &Dementia, Volume 21, Issue 5, May 2025.
Abstract Recent years have seen major advances in tau‐associated brain disorders through interdisciplinary research spanning molecular biology, neuroimaging, clinical trials, and therapeutic development. The Tau2024 Global Conference, hosted by the Alzheimer's Association, CurePSP, and Rainwater Charitable Foundation, showcased these efforts by ...
Bess Frost, James B. Rowe, Rufus O. Akinyemi, Jose F. Abisambra, Nicholas J. Ashton, Matthias Brendel, Luc Buée, David Butler, Maria C. Carrillo, Peter Chung, Claire D. Clelland, Sarah L. DeVos, Kristophe Diaz, Rebecca M. Edelmayer, Fanny M. Elahi, Ratnavalli Ellajosyula, Colin Ewen, Igor Camargo Fontana, Marie‐Christine Galas, Oskar Hansson, Günter Höglinger, Kanta Horie, Agustín Ibanez, Linde Jacobs, Mahmoud B. Maina, Maura Malpetti, Eric McDade, Will McEwan, Laia Montoliu‐Gaya, Catherine J. Mummery, Miranda E. Orr, Jonathan D. Rohrer, Amy Rommel, Carlos Sastre, Tara L. Spires‐Jones, Boon Lead Tee, Tim J. Viney, Jamie M. Walker, Susanne Wegmann, Kristin Wildsmith, Ravi Yadav, Simin Mahinrad, Claire Sexton   +42 more
wiley   +1 more source

Radio Spectroscopy of Active Galactic Nuclei

, 2005
Radio spectroscopy offers a number of tools for studying a large variety of astrophysical phenomena, ranging from stars and their environment to interstellar and intergalactic medium, active galactic nuclei (AGN) and distant quasars. Main targets of extragalactic radio spectroscopy are atomic and molecular material in galaxies, HII regions, and maser ...
openaire   +2 more sources