Results 21 to 30 of about 37,251 (259)
Cosmic-ray driven dynamo in galaxies [PDF]
, 2011 We present recent developments of global galactic-scale numerical models of the Cosmic Ray (CR) driven dynamo, which was originally proposed by Parker (1992).
Allen +13 more
core +2 more sources
The Galactic distribution of magnetic fields in molecular clouds and HII regions [PDF]
, 2006 {Magnetic fields exist on all scales in our Galaxy. There is a controversy about whether the magnetic fields in molecular clouds are preserved from the permeated magnetic fields in the interstellar medium (ISM) during cloud formation. We investigate this
Han, J. L., Zhang, J. S.
core +3 more sources
Polarisation of submillimetre lines from interstellar medium [PDF]
, 2017 Magnetic fields play important roles in many astrophysical processes. However, there is no universal diagnostic for the magnetic fields in the interstellar medium (ISM) and each magnetic tracer has its limitation.
Yan, Huirong, Zhang, Heshou
core +1 more source
Reactivity of a Substituted Aryloxenium Cation with a Triplet Ground State. [PDF]
ChemistryA substituted aryloxenium cation with a triplet electronic ground state is not a strong electrophile like the analogous singlet aryloxenium cations. It undergoes only radical reactions that are remarkably fast for a delocalized π‐type biradical. Abstract Aryloxenium cations contain a formally positively charged, monovalent oxygen atom. In spite of this
Nguyen TV, Nash JJ, Kenttämaa HI.
europepmc +2 more sources
TRIANGULATION OF THE INTERSTELLAR MAGNETIC FIELD [PDF]
The Astrophysical Journal, 2015 Determining the direction of the local interstellar magnetic field (LISMF) is important for understanding the heliosphere's global structure, the properties of the interstellar medium, and the propagation of cosmic rays in the local galactic medium. Measurements of interstellar neutral atoms by Ulysses for He and by SOHO/SWAN for H provided some of the
N. A. Schwadron +4 more
openaire +2 more sources
Interstellar Polarization Survey. II. General Interstellar Medium
The Astronomical Journal, 2023 Magnetic fields permeate the entire Galaxy and are essential to, for example, the regulation of several stages of the star formation process and cosmic-ray transportation.
M. J. F. Versteeg +6 more
doaj +1 more source
Turbulent amplification of interstellar magnetic fields [PDF]
Symposium - International Astronomical Union, 1991 We show that the radiative cooling properties of the interstellar gas lead naturally to a scaling law for the magnetic field of the form B ∝ n1/2, if the magnetic field is amplified by a vigorous injection of turbulent energy due to expanding HII regions, stellar winds, supernova explosions, stellar jets, etc.
openaire +1 more source
Biermann Mechanism in Primordial Supernova Remnant and Seed Fields
, 2006 We have studied the generation of magnetic fields by the Biermann mechanism in the pair-instability supernovae explosions of the first stars. The Biermann mechanism produces magnetic fields in the shocked region between the bubble and interstellar medium
Abel +29 more
core +1 more source
FAST Polarization Mapping of the Supernova Remnant VRO 42.05.01
The Astrophysical Journal, 2023 We have obtained the polarization data cube of the supernova remnant (SNR) VRO 42.05.01 at 1240 MHz using the Five-hundred-meter Aperture Spherical Radio Telescope (FAST).
Li Xiao +4 more
doaj +1 more source
Obtaining the Strength of the Magnetic Field from E- and B-Modes of Dust Polarization
The Astrophysical Journal, 2023 We perform numerical simulations of supersonic magnetohydrodynamic (MHD) turbulence and calculate Fourier power spectra of E - and B -modes arising from dust polarization. We pay close attention to the ratio of E -mode to B -mode spectra (a.k.a.
Jungyeon Cho
doaj +1 more source