Results 81 to 90 of about 75,738 (243)
The CCD and readout electronics for the OMC instrument on Integral [PDF]
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
Abstract We report new results from a study of shock‐related features in the L6 ordinary chondrites Northwest Africa (NWA) 4672 and NWA 12841. Our observations confirm the occurrence of eight high‐pressure (HP) minerals in each meteorite, namely, ringwoodite, majorite, akimotoite, wadsleyite, albitic jadeite, lingunite, tuite, and xieite.
I. Baziotis +5 more
wiley +1 more source
Abstract The Campo del Cielo iron meteorite (IAB‐MG) provides a unique window into early solar system processes, particularly the formation and evolution of carbon phases in non‐magmatic iron meteorites. In this study, we conducted a systematic nanostructural investigation of three distinct graphite occurrences—cliftonite (type I), interstitial ...
Xiao Tian Deng +8 more
wiley +1 more source
GRB 250704B: An Off-axis Short GRB with a Long-lived Afterglow Plateau
We present a detailed multiwavelength afterglow study of the short gamma-ray burst (GRB) GRB 250704B, extensively monitored in optical and near-infrared bands.
Vishwajeet Swain +29 more
doaj +1 more source
Ground-based very high energy gamma ray astronomy: Observational highlights [PDF]
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
Scientific Highlights from Observations of Active Galactic Nuclei with the MAGIC Telescope
Since 2004, the MAGIC gamma-ray telescope has newly discovered 6 TeV blazars. The total set of 13 MAGIC-detected active galactic nuclei includes well-studied objects at other wavelengths like Markarian 501 and the giant radio galaxy M87, but also the ...
Felix A. Aharonian +4 more
core +1 more source
Development of a new backside reflection mirror technologies for ground-based gamma-ray astronomy [PDF]
J. Niemiec +7 more
openalex +1 more source
Abstract Purpose The goal of CEST imaging is to reveal the underlying tissue composition and exchange. However, quantitative CEST analyses typically require strong assumptions about this same composition and exchange. The goal of this paper is to introduce a new CEST analysis (also applicable to rotating frame relaxation rate R1ρ$$ {R}_{1\uprho ...
Daniel F. Gochberg
wiley +1 more source
Telescope Concepts in Gamma-Ray Astronomy [PDF]
Thomas Siegert, D. Horan, G. Kanbach
openalex +2 more sources
\gamma-rays from starburst galaxies
In this paper the current status of \gamma-ray observations of starburst galaxies from hundreds of MeV up to TeV energies with space-based instruments and ground-based Imaging Atmospheric Cherenkov Telescopes (IACTs) is summarised.
Ohm, Stefan
core +1 more source

