Results 111 to 120 of about 1,204 (229)

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

Open Questions in Cosmic-Ray Research at Ultrahigh Energies

Frontiers in Astronomy and Space Sciences, 2019
We review open questions and prospects for progress in ultrahigh-energy cosmic ray (UHECR) research, based on a series of discussions that took place during the “The High-Energy Universe: Gamma-Ray, Neutrino, and Cosmic-ray Astronomy” MIAPP workshop in ...
Rafael Alves Batista, Jonathan Biteau, Mauricio Bustamante, Klaus Dolag, Klaus Dolag, Ralph Engel, Ke Fang, Karl-Heinz Kampert, Dmitriy Kostunin, Miguel Mostafa, Kohta Murase, Kohta Murase, Foteini Oikonomou, Angela V. Olinto, Mikhail I. Panasyuk, Guenter Sigl, Andrew M. Taylor, Michael Unger   +17 more
doaj   +1 more source

The origin and dynamic interaction of solar magnetic fields [PDF]

, 2007
The dynamics of the solar corona are dominated by the magnetic field which creates its structure. The magnetic field in most of the corona is ‘frozen’ to the plasma very effectively.
Antonia Wilmot-Smith, Wilmot-Smith, Antonia, Wilmot-Smith, A.L.   +2 more
core  

Time dependence of AGN pair echo, and halo emission as a probe of weak extragalactic magnetic fields

, 2017
International audienceGamma-rays with energy exceeding 100 GeV emitted by extragalactic sources initiate cascades in the intergalactic medium. The angular and temporal distribution of the cascade photons that arrive at the Earth depend on the strength ...
Kotera, Kumiko, Foteini Oikonomou, Kohta Murase, Oikonomou, Foteini, Murase, Kohta, Kumiko Kotera   +5 more
core   +1 more source

A Stratification in Magnetic Field Structures: The Radio Outflow in NGC 4151

The Astrophysical Journal
The nature of radio outflows in radio-quiet (RQ) active galactic nuclei (AGN) remains poorly understood. In this study, we present kiloparsec-scale polarization observations of the Seyfert galaxy NGC 4151 using the Karl G.
Salmoli Ghosh, Preeti Kharb, Elisa Costantini, Jack F. Gallimore, David Williams-Baldwin, Missagh Mehdipour   +5 more
doaj   +1 more source

ALPs searches with LST-1 [PDF]

EPJ Web of Conferences
Axions and axion-like particles (ALPs) are hypothetical particles predicted by several extensions of the Standard Model and viable candidates for solving one of the big mysteries of the Universe: Dark Matter.
Batković Ivana, D’Amico Giacomo, Doro Michele   +2 more
doaj   +1 more source

UHECRs deflections in the IRAS PSCz catalogue based models of extragalactic magnetic field [PDF]

, 2006
A. Elyiv
openalex   +1 more source

Extragalactic Magnetar Giant Flares: Population Implications, Rates, and Prospects for Gamma-Rays, Gravitational Waves, and Neutrinos

The Astrophysical Journal
Magnetar giant flares (MGFs) are the most energetic non-catastrophic transients known to originate from stellar objects. The first discovered events were nearby.
Paz Beniamini, Zorawar Wadiasingh, Aaron Trigg, Cecilia Chirenti, Eric Burns, George Younes, Michela Negro, Jonathan Granot   +7 more
doaj   +1 more source

A SURVEY OF EXTRAGALACTIC FARADAY ROTATION AT HIGH GALACTIC LATITUDE: THE VERTICAL MAGNETIC FIELD OF THE MILKY WAY TOWARD THE GALACTIC POLES [PDF]

, 2010
Sui Ann Mao, B. M. Gaensler, M. Haverkorn, Ellen G. Zweibel, G. J. Madsen, N. M. McClure‐Griffiths, Anvar Shukurov, P. P. Kronberg   +7 more
openalex   +1 more source

What Rogue Hydrogen Clouds Tell Us about Galactic Magnetic Fields

The Astrophysical Journal
Observations of the Milky Way and external galaxies support the idea that large-scale magnetic fields are concentrated in galactic disks, with halo magnetic fields at least an order of magnitude weaker.
Bailey M. Forster, Tyler J. Foster, Roland Kothes, Alex S. Hill, Jo-Anne C. Brown   +4 more
doaj   +1 more source