Results 51 to 60 of about 93,185 (169)

Magnetic Fields in Supernova Remnants

, 1976
Parkes 2 7 and 5 0 GHz polarization maps have been combined to obtain distributions of magnetic field, Faraday rotation and depolarization for 20 supernova remnants.
DK Milne, John R Dickel
core   +1 more source

Suprathermal Electron Acceleration Comparison of the Venusian and Terrestrial Bow Shocks

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract We study suprathermal electron acceleration at the Venusian bow shock using the Parker Solar Probe gravity assists and the Venus Express spacecraft mission. The acceleration is classified by measuring the maximum energy and the power‐law spectral slope (index) of the electron phase space density immediately downstream of the shocks for ...
M. Lindberg, H. Hietala, S. Nyberg, Y. Futaana, H. George   +4 more
wiley   +1 more source

MeerKAT 1.3 GHz Observations of Supernova Remnants

The Astrophysical Journal Supplement Series
We present full Stokes MeerKAT L -band (856–1712 MHz) observations of 36 high-latitude supernova remnants (SNRs). Sensitive, high-dynamic-range images show a wealth of structure. G15.1−1.6 appears to be a H ii region rather than an SNR.
W. D. Cotton, R. Kothes, F. Camilo, P. Chandra, S. Buchner, M. Nyamai   +5 more
doaj   +1 more source

Cosmogenic 10Be as a Tracer for Recent Heliospheric Encounters With Interstellar Cold Clouds and Nearby Supernovae

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Recent works suggest there are periods when the Sun encountered massive interstellar cold clouds which compressed the heliosphere to within Earth's orbit, exposing Earth to interstellar galactic cosmic rays and energetic particles of heliospheric origin.
Anna Nica, Merav Opher, Jesse A. Miller, Jennifer L. Middleton, Joe Giacalone   +4 more
wiley   +1 more source

Three-dimensional Velocity Diagnostics to Constrain the Type Ia Origin of Tycho's Supernova Remnant

The Astrophysical Journal
While various methods have been proposed to disentangle the progenitor system for Type Ia supernovae, their origin is still unclear. A circumstellar environment is key to distinguishing between the double-degenerate and single-degenerate (SD) scenarios ...
Hiroyuki Uchida, Tomoaki Kasuga, Keiichi Maeda, Shiu-Hang Lee, Takaaki Tanaka, Aya Bamba   +5 more
doaj   +1 more source

Prophylaxis Strategies for SARS‐CoV‐2 Infection in Adults With Hematological Malignancies in Saudi Arabia: Consensus Statements From the Working Group on COVID‐19 Management in Hematological Malignancies

Cancer Reports, Volume 9, Issue 10, October 2026.
ABSTRACT Background Despite the end of the pandemic phase, patients with hematological malignancies (HMs) remain vulnerable to severe COVID‐19 infection and mortality. Prophylaxis strategies, including vaccination and monoclonal antibodies (mAbs) like AZD7442, are crucial for protection.
Mubarak Al‐Mansour, Ayman Alhejazi, Manal Ahmed Alsaggaf, Hafiz Mosa Malhan, Riad El Fakih, Reyad Dada, Ghazi Saud Alotaibi, Reem S. Almaghrabi, Majid Alshamrani   +8 more
wiley   +1 more source

Energy‐Dependent Nucleation and Hierarchical Aggregation of Gold Nanoparticles During Synchrotron X‐Ray Radiolysis Revealed by in Situ Transmission Imaging and SAXS

Nano Select, Volume 7, Issue 10, October 2026.
In situ x‐ray transmission imaging and monochromatic small angle x‐ray scattering (SAXS) measurements of Au precursor solution establish that precise tuning of incident photon energy controls not only the radiolytic yield but the entire hierarchical aggregation trajectory, offering a sophisticated blueprint for the rational design of functional ...
Akinobu Yamaguchi, Ikuya Sakurai, Kenji Hanada, Toshiya Yasunaga, Takao Fukuoka, Hiroshi Sekiguchi   +5 more
wiley   +1 more source

Searching for Supernova Remnants

, 1998
The UKST/AAO Galactic Plane Hα Survey has the potential to discover many new objects not visible on red plates taken in past surveys. Recent radio surveys have identified large numbers of new supernova remnants, very few of which have been optically ...
W. J. Zealey, A. Walker
core   +1 more source

Detection of Gamma-Ray Emission from Supernova Remnant G156.2+5.7

The Astrophysical Journal
G156.2+5.7 is a supernova remnant (SNR) characterized by strong X-ray emission and low radio surface brightness. To investigate its high-energy gamma-ray emission, we analyzed more than 17 yr of Fermi Large Area Telescope data.
Yangxuan Diao, Siming Liu, Xi Liu
doaj   +1 more source

Supernova Remnants in Gamma Rays

Universe
In the 1960s, the remnants of supernova explosions (SNRs) were indicated as a possible source of galactic cosmic rays through the Diffusive Shock Acceleration (DSA) mechanism.
Andrea Giuliani, Martina Cardillo
doaj   +1 more source