Results 71 to 80 of about 38,529 (262)

Effects of Forbush Decreases on the Global Electric Circuit

Space Weather, Volume 22, Issue 4, April 2024.
Abstract The suppression of high‐energy cosmic rays, known as Forbush decreases (FDs), represents a promising factor in influencing the global electric circuit (GEC) system. Researchers have delved into these effects by examining variations, often disruptive, of the potential gradient (PG) in ground‐based measurements taken in fair weather regions.
J. Tacza, G. Li, J.‐P. Raulin
wiley   +1 more source

Rotation Measure Jitter: Wavelength-dependent Scatter in Rotation Measure Related to Faraday Complexity

The Astrophysical Journal
The relation between Faraday rotation measure (RM) and differential Faraday rotation by unresolved structure of a turbulent plasma is investigated for extragalactic radio sources.
Jeroen M. Stil
doaj   +1 more source

Powerful Radio Sources in the Southern Sky. II. A Swift X-Ray Perspective

The Astrophysical Journal Supplement Series, 2023
We recently constructed the G4Jy-3CRE, a catalog of extragalactic radio sources based on the GLEAM 4-Jy (G4Jy) sample, with the aim of increasing the number of powerful radio galaxies and quasars with similar selection criteria to those of the revised ...
F. Massaro, S. V. White, A. Paggi, A. Jimenez-Gallardo, J. P. Madrid, C. Mazzucchelli, W. R. Forman, A. Capetti, C. Leto, A. García-Pérez, C. C. Cheung, V. Chavushyan, N. P. H. Nesvadba, I. Andruchow, H. A. Peña-Herazo, E. Sani, R. Grossová, V. Reynaldi, R. P. Kraft, B. Balmaverde, S. Cellone   +20 more
doaj   +1 more source

The CHILES Continuum and Polarization Survey. I. Survey Design and Noise Characterization

The Astronomical Journal
We introduce and describe the CHILES Continuum and Polarisation (CHILES Con Pol) Survey, a 1000 hr 1.4 GHz wideband full polarization radio continuum deepfield with the Very Large Array, commensurate with the CHILES H i deepfield.
Nicholas M. Luber, Min S. Yun, Hansung B. Gim, Daniel Krista-Kelsey, D.J. Pisano, Emmanuel Momjian, Chris Hales   +6 more
doaj   +1 more source

The contribution of the Unresolved Extragalactic Radio Sources to the Brightness Temperature of the sky

, 2008
The contribution of the Unresolved Extragalactic Radio Sources to the diffuse brightness of the sky was evaluated using the source number - flux measurements available in literature.
A. Tartari, Baldwin J. E., Bennett C. L., Birkinshaw M., Burigana C., Colla G., Davis M. M., Fomalont E. B., G. Boella, G. Sironi, Gower I. F. R., Grueff G., Gruppioni C., Hales S. E. G., Katgert J. K., Katgert P., Katgert P., Katgert P., Katgert P., Katgert-Merkelijn J. K., Longair M. S., M. Gervasi, M. Zannoni, Machalski J., McGilchrist M. M., Mills B. Y., Pauliny-Toth I. I. K., Peacock J. A., Peacock J. A., Pearson T. J., Seielstad G. A., Shaver P. A., Vallee J. P., Wall J. V., Wall J. V., Wall J. V., Wilson A. S.   +36 more
core   +1 more source

Updating the First CHIME/FRB Catalog of Fast Radio Bursts with Baseband Data

The Astrophysical Journal
In 2021, a catalog of 536 fast radio bursts (FRBs) detected with the Canadian Hydrogen Intensity Mapping Experiment (CHIME) radio telescope was released by the CHIME/FRB Collaboration.
The CHIME/FRB Collaboration, Mandana Amiri, Bridget C. Andersen, Shion Andrew, Kevin Bandura, Mohit Bhardwaj, P. J. Boyle, Charanjot Brar, Daniela Breitman, Tomas Cassanelli, Pragya Chawla, Amanda M. Cook, Alice P. Curtin, Matt Dobbs, Fengqiu Adam Dong, Gwendolyn Eadie, Emmanuel Fonseca, B. M. Gaensler, Utkarsh Giri, Antonio Herrera-Martin, Hans Hopkins, Adaeze L. Ibik, Ronniy C. Joseph, J. F. Kaczmarek, Zarif Kader, Victoria M. Kaspi, Adam E. Lanman, Mattias Lazda, Calvin Leung, Siqi Liu, Kiyoshi W. Masui, Ryan Mckinven, Juan Mena-Parra, Marcus Merryfield, Daniele Michilli, Cherry Ng, Kenzie Nimmo, Gavin Noble, Ayush Pandhi, Chitrang Patel, Aaron B. Pearlman, Ue-Li Pen, Emily Petroff, Ziggy Pleunis, Masoud Rafiei-Ravandi, Mubdi Rahman, Scott M. Ransom, Ketan R. Sand, Paul Scholz, Vishwangi Shah, Kaitlyn Shin, Yuliya Shpunarska, Seth R. Siegel, Kendrick Smith, Ingrid Stairs, David C. Stenning, Keith Vanderlinde, Haochen Wang, Henry White, Dallas Wulf   +59 more
doaj   +1 more source

A sharper view of the outer Galaxy at 1420 and 408 MHz from the Canadian Galactic Plane Survey - I. Revisiting the KR catalogue and new Gigahertz Peaked Spectrum Sources

, 2007
Arcminute-resolution radio continuum images at 408 and 1420 MHz from the Canadian Galactic Plane Survey (CGPS) have been used to reexamine radio sources listed in the Kallas and Reich (1980) catalogue. This catalogue is of particular interest to Galactic
Brand, C. R. Kerton, Cao, Condon, De Vries, Fich, Foster, Higgs, Kallas, Kerton, Landecker, Marecki, Masetti, O'Dea, Ortega, Reich, Röttgering, Taylor, Trushkin, Vollmer   +19 more
core   +1 more source

Flaring γ-Ray Emission from High Redshift Blazars

Galaxies, 2016
High redshift blazars are among the most powerful objects in the Universe. Although they represent a significant fraction of the extragalactic hard X-ray sky, they are not commonly detected in γ-rays. High redshift ( z > 2 ) objects represent
Monica Orienti, Filippo D’Ammando, Marcello Giroletti, Justin Finke, Daniele Dallacasa   +4 more
doaj   +1 more source

Observational Evidence of Accretion Disk-Caused Jet Precession in Galactic Nuclei

, 2005
We show that the observational data of extragalactic radio sources tend to support the theoretical relationship between the jet precession period and the optical luminosity of the sources, as predicted by the model in which an accretion disk causes the ...
Appl S., Bo-Yan Zhou, Collin-Souffrin S., Fanti C., Florido E., Hummel C. A., Hummel C. A., Hunstead R. W., Ju-Fu Lu, Klein U., Lu J. F., Nan R., Parma P., Rieger F. M., Roos N., Saikia D. J., Shakura N., van Ojik R., Vicente L.   +18 more
core   +2 more sources

The CHILES Continuum and Polarization Survey. II. Radio Continuum Source Catalog and Radio Properties

The Astronomical Journal
The COSMOS H I Large Extragalactic Survey (CHILES) Continuum and Polarization survey is an ultradeep continuum imaging study of the COSMOS field conducted using the Karl G. Jansky Very Large Array.
Hansung B. Gim, Min S. Yun, Nicholas M. Luber, Emmanuel Momjian, D. J. Pisano, Kelley M. Hess, Julia Blue Bird, Lucas Hunt   +7 more
doaj   +1 more source