Results 111 to 120 of about 207,538 (259)

Ground-Based Gamma Ray Astronomy [PDF]

open access: yesBrazilian Journal of Physics, 2014
This paper is the write-up of a rapporteur talk given by the author at the 33rd International Cosmic Ray Conference in Rio de Janeiro, Brazil, in 2013. It attempts to summarize results and developments in ground-based gamma-ray observations and instrumentation from among the $\sim300$ submissions to the gamma-ray sessions of the meeting.
openaire   +4 more sources

Structure and Migration Mechanisms of Oxygen Interstitial Defects in β‐Ga2O3

open access: yesphysica status solidi (b), EarlyView.
The structures and diffusion mechanisms of interstitial oxygen in different charge states in β‐Ga2O3 are extensively studied using density functional theory. The results provide a detailed map of the potential energy surface for oxygen interstitials in β‐Ga2O3 and demonstrate how these ions migrate between different rings in the structure.
Chaiyawat Kaewmeechai   +2 more
wiley   +1 more source

A consistent coupling of two‐moment microphysics and bulk ice optical properties, and its impact on radiation in a regional weather model

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
This study presents a novel, consistent coupling of two‐moment microphysics (i.e., ice mass mixing ratio and number) with bulk ice optical properties, providing improved accuracy in radiative transfer simulations. The parametrisations, based on the mass‐equivalent spherical radius, avoid uncertainties associated with the effective radius by directly ...
Anthony J. Baran   +4 more
wiley   +1 more source

Ground-based gamma-ray astronomy [PDF]

open access: yesAIP Conference Proceedings, 2000
Ground-based gamma-ray astronomy has become an active astrophysical discipline with four confirmed sources of TeV gamma rays, two plerionic supernova remnants (SNRs) and two BL Lac objects (BL Lacs). An additional nine objects (one plerion, three shell-type SNRs, one X-ray binary, and four BL Lacs) have been detected but have not been confirmed by ...
openaire   +3 more sources

Surface‐Sensitive Fractioning of Flowing Colloidal Suspensions Sedimented at a Photochemically Active Wall

open access: yesSmall, EarlyView.
A straightforward technique for fractionating sedimented, same‐sized colloidal particles based on small differences in their surface properties is described. This microfluidic technology method exploits the velocity differentials within a shear‐flow via inducing a phoretic lift above the bottom porous polymer interface that is capable of light‐induced ...
Daniela Vasquez‐Muñoz   +11 more
wiley   +1 more source

Strategic Plan for Astronomy in the Netherlands 2011-2020 [PDF]

open access: yesarXiv, 2012
Strategic Plan for Astronomy in the Netherlands 2011 - 2020, written by the Netherlands Committee for Astronomy (NCA), on behalf of the excellence research school in astronomy NOVA, (combining the university astronomy institutes of the universities of Amsterdam, Groningen, Leiden and Nijmegen), the NWO division of Physical Sciences, the Netherlands ...
arxiv  

History of gamma-ray telescopes and astronomy [PDF]

open access: yesExperimental Astronomy, 2009
Gamma-ray astronomy is devoted to study nuclear and elementary particle astrophysics and astronomical objects under extreme conditions of gravitational and electromagnetic forces, and temperature. Because signals from gamma rays below 1 TeV cannot be recorded on ground, observations from space are required. The photoelectric effect is dominant 30 MeV,
openaire   +3 more sources

Bridging Experiment and Theory to Reveal Compounds in K–Zn(Cd)–Bi Systems

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
Theoretically predicted compounds are experimentally realized via the facile hydride route, permitting experimental screening of K–Zn–Bi and “empty” K–Cd–Bi systems. The high‐yield synthesis has enabled a study of crystal and electronic structure, thermal stability, and magnetic properties of previously reported KZnBi, KZn2Bi2, and novel KCdBi and ...
Tori Cox   +7 more
wiley   +1 more source

Book Review Interferometry and Synthesis in Radio Astronomy - 3rd Ed [PDF]

open access: yesarXiv, 2017
Review of the third edition of "Interferometry and Synthesis in Radio Astronomy" by Thompson, Moran and ...
arxiv  

Very-high-energy gamma-ray astronomy

open access: yesThe European Physical Journal Special Topics, 2022
D. Bose, V. Chitnis
semanticscholar   +1 more source

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