Results 111 to 120 of about 199,466 (288)
Electron–Ion Temperature Ratio in Astrophysical Shocks
Collisionless shock waves in supernova remnants and the solar wind heat electrons less effectively than they heat ions, as is predicted by kinetic simulations.
John C. Raymond+11 more
doaj +1 more source
Cosmic Ray Acceleration in Supernova Remnants [PDF]
We review the main observational and theoretical facts about acceleration of Galactic cosmic rays in supernova remnants, discussing the arguments in favor and against a connection between cosmic rays and supernova remnants, the so-called supernova remnant paradigm for the origin of Galactic cosmic rays.
arxiv +1 more source
Compact Objects in Supernova Remnants [PDF]
Core collapse in very massive stars can lead to a central black hole that swallows the rest of the star and in less massive stars to a central neutron star and explosion. There is probably an intermediate mass range that gives an explosion and a central black hole; supernova remnants with no observable central object are candidates.
openaire +3 more sources
Signatures of pulsars in the light curves of newly formed supernova remnants [PDF]
We explore the effect of pulsars, in particular those born with millisecond periods, on their surrounding supernova ejectas. While they spin down, fast-spinning pulsars release their tremendous rotational energy in the form of a relativistic magnetized ...
K. Kotera, E. Phinney, A. Olinto
semanticscholar +1 more source
The direct derivatisation of heteroleptic iridium(III) complexes with sulfonate groups removes the limitations of prior strategies for the preparation of water‐soluble analogues, in which complexes were prepared from a narrow range of ligands with suitably polar or charged functional groups.
Kesha Sriee Manimaran+7 more
wiley +1 more source
Supernova Remnants in Gamma Rays
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
Third Epoch HST Imaging of a Nonradiative Shock in the Cygnus Loop Supernova Remnant
We present new HST/WFC3 optical images of a region in the northeastern part of the Cygnus Loop supernova remnant, which includes a well-studied Balmer-line filament. These data represent the third epoch of HST H α imaging and a second epoch of [O iii ] λ
Ravi Sankrit+2 more
doaj +1 more source
Kepler's Supernova Remnant: The view at 400 Years [PDF]
October 2004 marks the 400th anniversary of the sighting of SN 1604, now marked by the presence of an expanding nebulosity known as Kepler's supernova remnant. Of the small number of remnants of historical supernovae, Kepler's remnant remains the most enigmatic.
arxiv
Metal halide perovskite for room temperature gamma‐ray spectrum detection
Integrating recent advancements in metal halide perovskite (MHP) for room temperature gamma‐ray spectroscopy, we provide a comprehensive overview of the methods for growing high‐quality MHP crystals, along with fundamental insights into the structure of gamma‐ray devices and the defect characteristics of MHPs.
Zhongyi Lin+4 more
wiley +1 more source
Motivated by the recent discovery of a low-surface-brightness diffuse emission, a supernova remnant (SNR) candidate, surrounding the young pulsar PSR J0837–2454, we carry out a likelihood analysis of the γ -ray data obtained by the Fermi Gamma-ray Space ...
Pengfei Zhang, Yuliang Xin
doaj +1 more source