Results 111 to 120 of about 74,658 (229)

Terrestrial Analogs to Titan for Geophysical Research

open access: yesReviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon   +21 more
wiley   +1 more source

The 157 Month Swift/BAT All-sky Hard X-Ray Survey

open access: yesThe Astrophysical Journal
The Burst Alert Telescope (BAT) on board the Neil Gehrels Swift Observatory has been serving as a survey instrument for the hard X-ray sky, and has detected thousands of X-ray sources (e.g., active galactic nuclei, X-ray binaries, etc).
Amy Y. Lien   +14 more
doaj   +1 more source

The CCD and readout electronics for the OMC instrument on Integral [PDF]

open access: yes, 2003
The Optical Monitoring Camera (OMC) on ESA's Integral gamma-ray astronomy satellite is devoted to optical wavelength observations simultaneously covering the same field-of-view as the gamma-ray and X-ray instruments.
Bradley, LJ   +6 more
core  

Sense of Belonging in Science: A Focus on the Construct

open access: yesJournal of Educational Measurement, Volume 63, Issue 2, Summer 2026.
Abstract The importance of the construct to the fields of measurement and cognitive science cannot be overstated. Without an understanding of the construct, including clarity and scope of the substantive and structural aspects, one cannot ensure valid use and interpretation of a constructed measure.
Linda Morell   +6 more
wiley   +1 more source

The First LHAASO Catalog of Gamma-Ray Sources

open access: yesThe Astrophysical Journal Supplement Series
We present the first catalog of very-high-energy and ultra-high-energy gamma-ray sources detected by the Large High Altitude Air Shower Observatory. The catalog was compiled using 508 days of data collected by the Water Cherenkov Detector Array from 2021
Zhen Cao   +280 more
doaj   +1 more source

Diffuse Extragalactic Background Radiation

open access: yes, 2008
Attenuation of high--energy gamma rays by pair--production with UV, optical and IR background photons provides a link between the history of galaxy formation and high--energy astrophysics.
Felix A. Aharonian   +5 more
core   +1 more source

Mapping Nanoscale Buckling in Atomically Thin Cr2Ge2Te6

open access: yesAdvanced Functional Materials, Volume 36, Issue 36, 4 May 2026.
Atomic‐resolution STEM is used to resolve nanoscale buckling in monolayer Cr2Ge2Te₆. A noise‐robust image analysis reconstructs three‐dimensional lattice distortions from single plan‐view images, revealing pronounced defect‐driven nm‐scale out‐of‐plane buckling.
Amy Carl   +20 more
wiley   +1 more source

Harnessing the Orientation of Columnar Discotic Liquid Crystals for Narrowband Blue Emission with Enhanced Out‐Coupling Efficiency Toward Improvement of SP‐OLEDs Performance

open access: yesAdvanced Functional Materials, Volume 36, Issue 36, 4 May 2026.
Solution‐processed OLEDs containing discotic liquid‐crystalline MR‐TADF emitters are reported. Supramolecular self‐assembly induces homeotropic columnar alignment, enforcing preferential horizontal orientation of the emitter transition dipole moment in spin‐coated films, which leads to an enhancement in the device light outcoupling efficiency while ...
Joydip De   +6 more
wiley   +1 more source

Ground-based very high energy gamma ray astronomy: Observational highlights [PDF]

open access: yes
It is now more than 20 years since the first ground based gamma ray experiments involving atmospheric Cerenkov radiation were undertaken. The present highlights in observational ground-based very high energy (VHE) gamma ray astronomy and the optimism ...
Turver, K. E.
core   +1 more source

Gamma-ray Astronomy

open access: yes, 2007
The relevance of gamma-ray astronomy to the search for the origin of the galactic and, to a lesser extent, the ultra-high-energy cosmic rays has long been recognised. The current renaissance in the TeV gamma-ray field has resulted in a wealth of new data on galactic and extragalactic particle accelerators, and almost all the new results in this field ...
openaire   +2 more sources

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