Results 101 to 110 of about 62,437 (252)

Multifrequency Studies of Active Galactic Nuclei in the Planck Satellite Era

Galaxies, 2016
The multi-epoch single-survey Planck satellite data have given a rare glimpse into how the radio spectra of active galactic nuclei (AGN) evolve in time.
Anne Lähteenmäki, the Planck Collaboration   +1 more
doaj   +1 more source

The Contribution of Active Galactic Nuclei to the Microjansky Radio Population

, 2009
A X-ray background synthesis model is used to calculate the contribution of Active Galactic Nuclei (AGNs) to the 1.4 GHz number counts between 100 nJy and 10 mJy.
Ballantyne, Ballantyne, Ballantyne, Barger, Bell, Benn, Blundell, Bondi, Brinkmann, D. R. Ballantyne, Donley, Fomalont, Gabor, Grogin ., Heckman, Hickox, Hopkins, Hopkins, Hopkins, Hopkins, Huynh, Kellermann, Kellermann, Kim, La Franca, Lawrence, Longair, Moran, Mushotzky, Napier, Padovani, Pierce, Richards, Schawinski, Schinnerer, Serjeant, Shi, Sikora, Silverman, Silverman, Smolčić, Solomon, Spergel, Terashima, Thompson, Tozzi, Treister, Treister, Tueller, Ueda, Wada, Watabe, White, Wilman, Winter, Yun, Zakamska   +56 more
core   +1 more source

Revisiting the Unified Model of Active Galactic Nuclei [PDF]

, 2015
This review describes recent developments related to the unified model of active galactic nuclei (AGNs). It focuses on new ideas about the origin and properties of the central obscurer (torus) and the connection to its surroundings.
H. Netzer
semanticscholar   +1 more source

Clinical application of single‐cell RNA sequencing in disease and therapy

Clinical and Translational Medicine, Volume 15, Issue 11, November 2025.
This review provides a comprehensive overview of the application of scRNA‐seq in revisiting the somatic cell evolutions in human diseases, as well as in biomarker discovery and drug development. Abstract Background The emergence of single‐cell RNA sequencing (scRNA‐seq) technology has revolutionized our capacity to study cell functions in complex ...
Aisha Shigna Nadukkandy, Sowmiya Kalaiselvan, Lin Lin, Yonglun Luo   +3 more
wiley   +1 more source

Multiwavelength Properties of Infrared-faint Radio Sources Based on Analysis of Their Spectral Energy Distribution

The Astrophysical Journal
Infrared-faint radio sources (IFRSs) are believed to be a rare class of radio-loud active galactic nuclei (AGNs) characterized by their high radio-to-infrared flux density ratios of up to several thousand.
Yihang Zhang, Lulu Fan, Tao An, Jun Yang, Weibin Sun, Haoran Yu, Yunkun Han   +6 more
doaj   +1 more source

A Radio View of the Sky: the Cosmic History of Star-Forming and AGN Galaxies [PDF]

, 2009
We explore the cosmic evolution of radio detected star forming (SF) galaxies and active galactic nuclei (AGN), drawn from the VLA-COSMOS survey, out to z = 1.3.
Schinnerer, E., Smolčić, V., Zamorani, G.   +2 more
core  

PAGaN I: Multi-Frequency Polarimetry of AGN Jets with KVN

, 2015
Active Galactic Nuclei (AGN) with bright radio jets offer the opportunity to study the structure of and physical conditions in relativistic outflows. For such studies, multi-frequency polarimetric very long baseline interferometric (VLBI) observations ...
Kim, Daewon, Kim, Jae-Young, Lee, Sang-Sung, Lee, Taeseok, Oh, Junghwan, Park, Jong-Ho, Sohn, Bong Won, Trippe, Sascha   +7 more
core   +1 more source

Effect of Background Magnetic Field on Ion Weibel Instability With High‐Intensity Short‐Pulse Lasers

Contributions to Plasma Physics, Volume 65, Issue 10, November 2025.
ABSTRACT The effect of finite background magnetic field on magnetic field amplification by Weibel instability using high‐intensity short‐pulse lasers is investigated. We consider Weibel instability for counter‐streaming sub‐relativistic plasma flows generated by shooting pure carbon targets with short‐pulse lasers.
Taiki Jikei, Takanobu Amano, Yosuke Matsumoto, Yasuhiro Kuramitsu   +3 more
wiley   +1 more source

Probing the High-frequency Variability of NGC 5044: The Key to Active Galactic Nucleus Feedback

The Astrophysical Journal
The active galactic nucleus (AGN) feeding and feedback process in the centers of galaxy clusters and groups is still not well understood. NGC 5044 is the ideal system in which to study AGN feedback. It hosts the largest known reservoir of cold gas in any
Gerrit Schellenberger, Ewan O’Sullivan, Laurence P. David, Jan Vrtilek, Charles Romero, Glen Petitpas, William Forman, Simona Giacintucci, Mark Gurwell, Christine Jones, Kamlesh Rajpurohit, Francesco Ubertosi, Tiziana Venturi   +12 more
doaj   +1 more source

How relevant is the torus activity/geometry for the TeV gamma-rays emitted in the jet of M87 ? [PDF]

, 2003
Motivated by unification schemes of active galactic nuclei, we review evidence for the existence of a small-scale dust torus in M87, a Fanaroff-Riley Class I radio galaxy.
Donea, A. -C., Protheroe, R. J.
core   +1 more source