Results 111 to 120 of about 4,214,854 (199)

Faraday Complexity and Depolarization in a High-rotation-measure Radio Galaxy from the Spectra and Polarization in Cutouts of Extragalactic Sources (SPICE-RACS) DR2

The Astrophysical Journal
We present a broadband spectropolarimetric analysis of the extragalactic radio source RACS_0900-28_7036 using Spectra and Polarization in Cutouts of Extragalactic Sources (SPICE-RACS) DR2 observations with the Australian Square Kilometre Array Pathfinder
Debajyoti Mondal, Abhik Ghosh, Dipanjan Banerjee   +2 more
doaj   +1 more source

Oscillating magnetic field disrupts magnetic orientation in Zebra finches, Taeniopygia guttata [PDF]

, 2009
Background Zebra finches can be trained to use the geomagnetic field as a directional cue for short distance orientation. The physical mechanisms underlying the primary processes of magnetoreception are, however, largely unknown.
Wiltschko, Wolfgang, Voss Joe, Tim Ruploh, Ruploh, Tim, Nina Keary, Wolfgang Wiltschko, Keary, Nina, Thalau, Peter, Wiltschko, Roswitha, Ruploh Tim, Voss, Joe, Wiltschko, Wolfgang (Prof. Dr.), Joe Voss, Roswitha Wiltschko, Peter Thalau, Wiltschko Roswitha, Bischof Hans-Joachim, Thalau Peter, Wiltschko Wolfgang, Keary Nina, Hans-Joachim Bischof, Bischof, Hans-Joachim   +21 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

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

Galactic and extragalactic magnetic fields - a concise review

, 2009
The strength of the total magnetic field in our Milky Way from radio synchrotron measurements is about 6µG (0.6 nT), averaged over a radius of about 1 kpc around the Sun.
R. Beck
semanticscholar   +1 more source

Possible health effects of magnetic fields

, 2015
There is a major public concern about possible detrimental health effects of weak magnetic fields. Our research will provide the first systematic and detailed study of magnetic properties of important radical-containing complexes using microwave ...
MARINAKIS, S, Howard,, B
core   +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

The axion-photon mixing and the extragalactic magnetic background: plateau regimes, resonances, and non-Gaussian boosts

European Physical Journal C: Particles and Fields
We present an analytical treatment of Axion-Like-Particle (ALP)—photon mixing with extragalactic background light (EBL) attenuation for constant, Gaussian-stochastic, and non-Gaussian magnetic field configurations−with direct implications for Very High ...
Andrea Addazi, Yi-Fu Cai, Salvatore Capozziello, Qingyu Gan, Gaetano Lambiase   +4 more
doaj   +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

Primordial magnetic fields

We discuss here the following questions related to magnetic fields in the early universe: 1. Observational constraints on primordial magnetic fields. 2.
Shaposhnikov, M.
core   +1 more source