Results 81 to 90 of about 75,738 (243)

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  

New knowledge about shock events that affected the L‐chondrite parent body from two heavily shocked L6 meteorite finds

open access: yesMeteoritics &Planetary Science, EarlyView.
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

Graphite crystallinity and thermal record in Campo del Cielo IAB iron meteorite: A window into impact processing on a chondritic body

open access: yesMeteoritics &Planetary Science, EarlyView.
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

open access: yesThe Astrophysical Journal Letters
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]

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

Scientific Highlights from Observations of Active Galactic Nuclei with the MAGIC Telescope

open access: yes, 2008
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]

open access: gold, 2023
J. Niemiec   +7 more
openalex   +1 more source

Inverting CEST or R1ρ$$ {R}_{1\uprho} $$ data to generate solute spectra without a priori assumptions

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 2, Page 1239-1254, February 2026.
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]

open access: green, 2022
Thomas Siegert, D. Horan, G. Kanbach
openalex   +2 more sources

\gamma-rays from starburst galaxies

open access: yes, 2012
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

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