Results 81 to 90 of about 199,466 (288)

Young Supernova Remnants: Issues and Prospects [PDF]

open access: yes, 2001
After reviewing recent work on the dynamics of young supernova remnants (YSNRs) and discussing how YSNRs can be used as physics laboratories, I discuss several challenges: Where are the very young SNRs in the Galaxy? Can very young SNRs produce gamma ray bursts?
arxiv   +1 more source

Searches for continuous gravitational waves from nine young supernova remnants [PDF]

open access: yes, 2014
We describe directed searches for continuous gravitational waves in data from the sixth LIGO science data run. The targets were nine young supernova remnants not associated with pulsars; eight of the remnants are associated with non-pulsing suspected ...
J. Aasi   +465 more
semanticscholar   +1 more source

Controlling the Orientation of Polar Axis in Chiral Metal‐Halides to Reveal Their Intrinsic Circularly Polarized Luminescence

open access: yesAdvanced Optical Materials, EarlyView.
In chiral and polar metal‐halide single crystals or thin films, the orientation of the main optical axis normal to incident light allows an easy characterization of the chiroptical properties (circular dichroism and circularly polarized luminescence) without artifacts or macroscopic interferences, despite the highly anisotropic nature in this family of
Kostiantyn Tieriekhov   +7 more
wiley   +1 more source

Development of Photo‐Biocatalytic Redox System for Asymmetric Synthesis of Optically Active Amines Using Blue Light and Transaminases. A Case Study Toward Mavacamten

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
Abstract α‐Chiral amines are versatile building blocks for the asymmetric synthesis of optically pure high‐added‐value chemicals, including pharmaceuticals, agrochemicals, and natural products. Herein, we report a one‐pot, two‐step sequential deracemization of racemic sec‐alcohols to optically enriched primary amines throught a photo‐biocatalytic ...
Natalia Antos   +5 more
wiley   +1 more source

G65.2+5.7: A Thermal Composite Supernova Remnant With a Cool Shell [PDF]

open access: yesAstrophys.J. 615 (2004) 275-279, 2004
This paper presents archival ROSAT PSPC observations of the G65.2+5.7 supernova remnant (also known as G65.3+5.7). Little material obscures this remnant and so it was well observed, even at the softest end of ROSAT's bandpass (~0.11 to 0.28 keV).
arxiv   +1 more source

Reacceleration of electrons in supernova remnants [PDF]

open access: yesProceedings of The 34th International Cosmic Ray Conference — PoS(ICRC2015), 2015
A&A submitted, version revised as per referee ...
Pohl, Manuela   +2 more
openaire   +7 more sources

COSMIC RAY ACCELERATION AT PERPENDICULAR SHOCKS IN SUPERNOVA REMNANTS [PDF]

open access: yes, 2014
Supernova remnants (SNRs) are believed to accelerate particles up to high energies through the mechanism of diffusive shock acceleration (DSA). Except for direct plasma simulations, all modeling efforts must rely on a given form of the diffusion ...
G. Ferrand   +5 more
semanticscholar   +1 more source

Toward Reuse‐Ready PV: A Perspective on Recent Advances, Practices, and Future Challenges

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This perspective study sheds light on current research and future challenges toward higher PV reuse readiness in PV industry. It highlights qualification methods, PV repair strategies, and standardization efforts for PV reuse. A four‐step example of triage‐for‐reuse framework is discussed, as well as recent advances in PV repair strategies for reuse ...
Ioannis (John) A. Tsanakas   +8 more
wiley   +1 more source

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

open access: yesThe 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   +5 more
doaj   +1 more source

Evolution of multiple supernova remnants [PDF]

open access: yes, 2014
(Abridged) Heating of the interstellar medium by multiple supernovae (SNe) explosions is at the heart of producing galaxy-scale outflows. We use hydrodynamical simulations to study the efficiency of multiple SNe in heating the interstellar medium (ISM ...
E. Vasiliev, B. Nath, Y. Shchekinov
semanticscholar   +1 more source

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