Results 71 to 80 of about 37,251 (259)

Turbulence in the Star-forming Interstellar Medium: Steps toward Constraining Theories with Observations

, 2003
Increasingly sophisticated observational tools and techniques are now being developed for probing the nature of interstellar turbulence. At the same time, theoretical advances in understanding the nature of turbulence and its effects on the structure of ...
Heyer, Mark, Zweibel, Ellen
core   +1 more source

Correlation Patterns of Muon Flux With Vertical Atmospheric Profiles: Insights From Monte Carlo Simulations

Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.
Abstract The production, attenuation, and absorption of secondary cosmic rays (SCR) are influenced by atmospheric parameters such as air pressure and temperature. To reliably correlate SCR flux measurements with atmospheric ionization driven by energetic particle precipitation, these dependencies must be quantified.
A. Al‐Qaaod, V. Pierrard, A. Winant, U. Stolzenberg, I. Ambrozova, M. Sommer, J. Slegl, J. Solc, A. Gkikoudi, A. G. Georgakilas, A. Papayannis, F. S. Krasniqi   +11 more
wiley   +1 more source

Imprints of the Local Bubble and Dust Complexity on Polarized Dust Emission

The Astrophysical Journal
Using 3D dust maps and Planck polarized dust emission data, we investigate the influence of the 3D geometry of the nearby interstellar medium (ISM) on the statistics of the dust polarization on large ( $80^{\prime} $ ) scales.
George Halal, S. E. Clark, Mehrnoosh Tahani   +2 more
doaj   +1 more source

Probing interstellar magnetic fields with Supernova remnants [PDF]

Proceedings of the International Astronomical Union, 2008
AbstractAs Supernova remnants expand, their shock waves are freezing in and compressing the magnetic field lines they encounter; consequently we can use Supernova remnants as magnifying glasses for their ambient magnetic fields. We will describe a simple model to determine emission, polarization, and rotation measure characteristics of adiabatically ...
Roland Kothes, Jo-Anne Brown
openaire   +1 more source

Magnetic Fields in the Southern Coalsack and Beyond

The Astronomical Journal
Starlight polarimetry, when combined with accurate distance measurements, allows for exploration of the three-dimensional structure of local magnetic fields in great detail.
M. J. F. Versteeg, Y. Angarita, A. M. Magalhães, M. Haverkorn, C. V. Rodrigues, R. Santos-Lima, Koji S. Kawabata   +6 more
doaj   +1 more source

Detection of microgauss coherent magnetic fields in a galaxy five billion years ago

, 2017
Magnetic fields play a pivotal role in the physics of interstellar medium in galaxies, but there are few observational constraints on how they evolve across cosmic time.
Basu, A., Beck, R., Carilli, C., Gaensler, B. M., Keeton, C., Kronberg, P. P., Mao, S. A., Wucknitz, O., Zweibel, E.   +8 more
core   +1 more source

Effective Resistivity for Magnetohydrodynamic Simulation of Collisionless Magnetic Reconnection

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract The electron inertia and the off‐diagonal electron pressure terms are well‐known for the frozen‐in condition breakdown in collisionless magnetic reconnection, which are naturally kinetic and difficult to employ in magnetohydrodynamic (MHD) simulations.
H. W. Zhang, Z. W. Ma, T. Chen
wiley   +1 more source

Evidence of Gradients of Density and Magnetic Field in the Remnant of Tycho’s Supernova

The Astrophysical Journal
By using surface brightness maps of Tycho’s supernova remnant (SNR) in radio and X-rays, along with the properties of thermal and synchrotron emission, we have derived the postshock density and magnetic field (MF) strength distributions over the ...
Oleh Petruk, Taras Kuzyo, Mariana Patrii, Laura Chomiuk, Maria Arias, Marco Miceli, Salvatore Orlando, Fabrizio Bocchino   +7 more
doaj   +1 more source

Earth Wind‐Driven Formation of Hematite on the Lunar Surface

Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract The recent discovery of hematite (Fe2O3 ${\text{Fe}}_{2}{\mathrm{O}}_{3}$) in lunar high‐latitude regions challenges the notion that the Moon exists in a reduced state. However, the origin of hematite remains unclear. We conducted irradiation experiments using 10 keV O2+ ${\mathrm{O}}_{2}^{+}$ and H2+ ${\mathrm{H}}_{2}^{+}$ ions on Fe‐bearing ...
Xiandi Zeng, Ziliang Jin, Chuanfei Dong, Ziyu Huang, Meng‐Hua Zhu, Luyuan Xu, Liam Morrissey, Liang Wang   +7 more
wiley   +1 more source

Applying the Velocity Gradient Technique in NGC 1333: Comparison with Dust Polarization Observations

The Astrophysical Journal
Magnetic fields ( B -fields) are ubiquitous in the interstellar medium (ISM), and they play an essential role in the formation of molecular clouds and subsequent star formation.
Archana Soam, Ka Ho Yuen, Ian Stephens, Chi Yan Law, Ka Wai Ho, Simon Coudé   +5 more
doaj   +1 more source