Results 111 to 120 of about 606,368 (330)

Explaining the most energetic supernovae with an inefficient jet-feedback mechanism

open access: yes, 2016
We suggest that the energetic radiation from core-collapse super-energetic supernovae (SESNe) is due to a long lasting accretion process onto the newly born neutron star (NS), resulting from an inefficient operation of the jet-feedback mechanism.
Gilkis, Avishai   +2 more
core   +1 more source

Metal‐Organic Framework Embedded Electrospun Fibrous Membranes‐Based Hybrid Nanogenerators with Hierarchical Modified Polyamide Films for Mechanical Energy Harvesting and IoT Applications

open access: yesAdvanced Functional Materials, EarlyView.
Hybrid nanogenerator (HNG) based on a zinc‐metal‐organic framework‐loaded fibrous film integrated with a hierarchically modified nylon film having micropatterns and micropores is fabricated via an electrospinning technique, and its electrical properties are optimized. The HNGs are incorporated into wearable garments and automobile systems for practical
Sontyana Adonijah Graham   +6 more
wiley   +1 more source

Jet-shaped filamentary ejecta in common envelope evolution

open access: yesThe Open Journal of Astrophysics
We conduct three-dimensional (3D) hydrodynamical simulations of common envelope evolution (CEE) of a neutron star (NS) that launches jets as it spirals in inside the envelope of a rotating red supergiant (RSG) stellar envelope and find that Rayleigh ...
Ron Schreier, Shlomi Hillel, Noam Soker
doaj   +1 more source

Optical/Infrared Polarised Emission in X-ray Binaries

open access: yesGalaxies, 2018
Recently, evidence for synchrotron emission in both black-hole (BH) and neutron star X-ray binaries has been mounting, from optical/infrared spectral, polarimetric, and fast timing signatures.
David M. Russell
doaj   +1 more source

On the interaction of microquasar jets with stellar winds

open access: yes, 2008
Strong interactions between jets and stellar winds at binary system spatial scales could occur in high-mass microquasars. We study here, mainly from a dynamical but also a radiative point of view, the collision between a dense stellar wind and a mildly ...
Aharonian   +60 more
core   +1 more source

The symbiotic binary St 2-22: Orbital and stellar parameters and jet evolution following its 2019 outburst [PDF]

open access: green, 2021
C. Gałan   +5 more
openalex   +1 more source

Beyond the Beam: Exploring Charged Particle Nanoprinting

open access: yesAdvanced Functional Materials, EarlyView.
Charged particle nanoprinting using electrons and ions is highly advanced, offering great potential for research and industry. However, challenges in precursor design and process optimization persist, but also offer great opportunities to drive nanofabrication innovations.
Nicolas Paul Jochmann   +2 more
wiley   +1 more source

Jets from the Upper Scorpius Variable Young Star System 2MASS J16075796-2040087 via KECK/HIRES Spectro-astrometry

open access: yesThe Astrophysical Journal
2MASS J16075796-2040087 is an ∼5 Myr young star in Upper Sco with evidence for accretion bursts on a timescale of about 15 days and, uncommonly for its age, outflows traced by multicomponent forbidden emission lines (FELs).
Emma T. Whelan   +6 more
doaj   +1 more source

The role of quasars in galaxy formation

open access: yes, 2010
We discuss evidence that quasars, and more generally radio jets, may have played an active role in the formation stage of galaxies by inducing star formation, i.e. through positive feedback.
D. Elbaz   +6 more
core   +1 more source

Double Helical Plasmonic Antennas

open access: yesAdvanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin   +7 more
wiley   +1 more source

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