Results 51 to 60 of about 6,020,151 (174)
Galaxies, 2020 Since the launch of Chandra twenty years ago, one of the greatest mysteries surrounding Quasar Jets is the production mechanism for their extremely high X-ray luminosity. Two mechanisms have been proposed. In the first view, the X-ray emission is inverse-
Eric S. Perlman +6 more
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The Astrophysical Journal, 2023 We report our analysis results for the globular cluster (GC) NGC 6341 (M92), as a millisecond pulsar (MSP) J1717+4308A has recently been reported found in this GC.
Pengfei Zhang +4 more
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Quasi‐Constant Time Gap in Multiple Rings of Elves
Earth and Space Science, Volume 12, Issue 10, October 2025.Abstract We present evidence that the time delay between the multiple rings of elves is not caused by the ground reflection of the electromagnetic pulse produced by intracloud lightning. To investigate temporal differences of multi‐elves, we analyzed data from four storms occurring at various times and distances from the Pierre Auger Observatory in ...
The Pierre Auger Collaboration
wiley +1 more source
A New View of the High Energy Gamma-ray Sky with the Fermi Gamma-Ray Space Telescope [PDF]
, 2010 This slide presentation reviews some of the findings that have been made possible by the use of the Fermi Gamma-ray Space Telescope.
McEnery, Julie
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2‐D Speed Profile of Negative Cloud‐to‐Ground Lightning Flashes With TGF Emissions
Journal of Geophysical Research: Atmospheres, Volume 130, Issue 15, 16 August 2025.Abstract We present the two‐dimensional (2‐D) speed profile of six stepped leaders with terrestrial gamma‐ray flashes (TGFs) (observed in 2021 (Abbasi et al., 2024, https://doi.org/10.1029/2024jd041260) and 2022 (Kieu et al., 2024, https://doi.org/10.1029/2024jd041720)) and 94 stepped leaders without TGFs (detected in 2021, 2022, 2023, and 2024). These
Ivan T. Cruz +8 more
wiley +1 more source
Search for Synchrotron Pair Echo Emission Following KM3-230213A
The Astrophysical JournalThe KM3NeT Collaboration has recently reported the detection of an extraordinary ultrahigh-energy (HE) neutrino event with an energy of 220 PeV. UHE neutrinos and gamma rays are coproduced in UHE cosmic-ray interactions.
Angelina Sherman +5 more
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Unveiling the Origin of the Fermi Bubbles
Galaxies, 2018 The Fermi bubbles, two giant structures above and below the Galactic center (GC), are among the most important discoveries of the Fermi Gamma-ray Space Telescope.
H.-Y. Karen Yang +2 more
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Advanced Electronic Materials, Volume 11, Issue 9, June 2025.This paper provides a comprehensive review of the existing literature related to the fundamentals of gallium oxide (Ga2O3), growth methods, substrates, and particularly a focused examination of Ga2O3‐based heterojunctions. Particular attention has also been given to the state‐of‐the‐art Ga2O3‐based heterojunctions for photodetectors. The key challenges
Alfred Moore +4 more
wiley +1 more source
Fermi Gamma-Ray Space Telescope Science Overview [PDF]
, 2010 After more than 2 years of science operations, the Fermi Gamma-ray Space Telescope continues to survey the high-energy sky on a daily basis. In addition to the more than 1400 sources found in the first Fermi Large Area Telescope Catalog (I FGL), new ...
Thompson, David J.
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The Statistical Analysis of GeV Spectral Breaks in Bright Gamma-Ray Flat-spectrum Radio Quasars
The Astrophysical Journal Supplement SeriesWe present the statistical results of GeV spectral breaks of bright gamma-ray flat-spectrum radio quasars (FSRQs) in the energy range of 0.1–10 GeV based on New Pass 8 data of the Large Area Telescope on board Fermi Gamma-Ray Space Telescope.
K. R. Zhu, J. M. Chen, L. Zhang
doaj +1 more source