Results 31 to 40 of about 96,122 (298)

The Radio Properties of Radio-Loud Narrow-Line Seyfert 1 Galaxies on Parsec Scales

, 2015
We present the detection of compact radio structures of fourteen radio-loud narrow line Seyfert 1 (NLS1) galaxies from Very Long Baseline Array observations at 5 GHz, which were performed in 2013.
Chen, Yongjun, Gu, Minfeng, Komossa, S., Shen, Zhi-Qiang, Wajima, Kiyoaki, Yuan, Weimin, Zensus, J. A., Zhou, Hongyan   +7 more
core   +1 more source

Extended radio emission in MOJAVE Blazars: Challenges to Unification [PDF]

, 2010
We present the results of a study on the 1.4 GHz kpc-scale radio emission in the complete flux density limited MOJAVE sample, comprising 135 radio-loud AGNs.
Appl, Barthel, Biretta, Blanton, Bîrzan, Cara, Cohen, Cooper, Corbett, Fanaroff, Giroletti, Gopal-Krishna, Homan, Kapahi, Kellermann, Kharb, Kovalev, Landt, Laurent-Muehleisen, Lister, Lister, Lister, M. L. Lister, Meier, Miller, Miller, Murphy, N. J. Cooper, Orr, P. Kharb, Padrielli, Prestage, Pringle, Rector, Reynolds, Scarpa, Schwab, Urry, Vermeulen, Wills, Xu, Xu   +41 more
core   +3 more sources

An Adaptive Human Pilot Model With Reaction Time Delay for Enhanced Adaptive Control in Piloted Systems

International Journal of Adaptive Control and Signal Processing, EarlyView.
This work introduces an adaptive human pilot model that captures pilot time‐delay effects in adaptive control systems. The model enables the prediction of pilot–controller interactions, facilitating safer integration and improved design of adaptive controllers for piloted applications.
Abdullah Habboush, Yildiray Yildiz
wiley   +1 more source

Clear Evidence for Intranight Optical Variability in Radio-quiet Quasars [PDF]

, 2003
We present new clues to the problem of the radio loudness dichotomy arising from an extensive search for intranight optical variability in seven sets of optically luminous radio-quiet quasars and (radio-loud) BL Lacertae objects, which are matched in ...
Gopal-Krishna, Sagar, Ram, Stalin, C. S., Wiita, Paul J.   +3 more
core   +3 more sources

Radio Loud AGN Unification: Connecting Jets and Accretion

EPJ Web of Conferences, 2013
While only a fraction of Active Galactic Nuclei are observed to host a powerful relativistic jet, a cohesive picture is emerging that radio-loud AGN may represent an important phase in the evolution of galaxies and the growth of the central super-massive
Meyer Eileen T., Georganopoulos Markos, Fossati Giovanni, Lister Matthew L.   +3 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Multifrequency VLA observations of the FR I radio galaxy 3C 31: morphology, spectrum and magnetic field

, 2008
We present high-quality VLA images of the FR I radio galaxy 3C 31 in the frequency range 1365 to 8440 MHz with angular resolutions from 0.25 to 40 arcsec.
A. H. Bridle, Andernach H., Bell A. R., Burch S. F., Burch S. F., De Vaucouleurs G., Fanaroff B. L., G. Giovannini, Jagers W. J. M., Komossa S., L. Feretti, Laing R. A., Laing R. A., Laing R. A., M. Murgia, P. Parma, Parma P., Pratt W. K., R. A. Laing, R. A. Perley, Strom R. G., Zwicky F.   +21 more
core   +1 more source

Hunting Gamma-Ray-emitting FR0 Radio Galaxies in Wide-field Sky Surveys

The Astrophysical Journal, 2023
The latest entry in the jetted active galactic nuclei (AGN) family is the Fanaroff–Riley type 0 (FR0) radio galaxies. They share several observational characteristics, e.g., nuclear emission and host galaxy morphology, with FR I sources; however, they ...
Meghana Pannikkote, Vaidehi S. Paliya, D. J. Saikia   +2 more
doaj   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Low-velocity Precessing Jets Can Explain Observed Morphologies in the Twin Radio Galaxy TRG J104454+354055

The Astrophysical Journal
Our understanding of large-scale radio jets in merger systems has been drastically improved in the era of the Very Large Array, Very Long Baseline Array/European VLBI Network, upgraded Giant Metrewave Radio Telescope, and MeerKAT.
Santanu Mondal, Gourab Giri, Ravi Joshi, Paul J. Wiita, Gopal-Krishna, Luis C. Ho   +5 more
doaj   +1 more source