Results 71 to 80 of about 6,020,151 (174)

The Search for Very High Energy γ-rays from Misaligned AGN [PDF]

open access: yes, 2013
The aim of this work is to study the potential for emission at very high energies (100 GeV) by misaligned active galactic nuclei (AGN) and the future prospects for observations of these objects with the next generation imaging atmospheric Cherenkov ...
CHEESEBROUGH, ALISTAIR
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Solving the Puzzle of the Carbonic Acid Vibrational Spectrum – an Anharmonic Story

open access: yesChemPhysChem, Volume 25, Issue 22, November 18, 2024.
The harmonic picture is the basic approximation that allows the prediction of vibrational spectra. However, reality is neither decoupled nor harmonic. This can lead to problems in notation and the assignment of individual bands. Taking anharmonicity and mode coupling into account allows a drastic improvement in spectral clarity.
Jonas Schlagin   +5 more
wiley   +1 more source

The Fermi Gamma-Ray Space Telescope [PDF]

open access: yes, 2011
This slide presentation reviews the Gamma Ray Astronomy as enhanced by the Fermi Gamma Ray Space Telescope and Radio Astronomy as a synergistic relationship. Gamma rays often represent a significant part of the energy budget of a source; therefore, gamma-
McEnery, Julie, Thompson, Dave
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Multivariate time series classification of Fermi-detected gamma-ray transients using convolutional-recurrent neural networks

open access: yesMachine Learning: Science and Technology
Fermi gamma-ray Space Telescope has detected a diverse range of gamma-ray transients since its launch in 2008. Over the years, Fermi has accumulated an extensive public archive of transient events.
Arpan Aryam John   +3 more
doaj   +1 more source

Lessons from the apparent peculiar nature of the star TYC 6544‐3483‐1

open access: yesAstronomische Nachrichten, Volume 345, Issue 4, May 2024.
Abstract We report a radio and optical study of the star TYC 6544‐3483‐1 originally selected as a follow‐up target in the course of our efforts to cross‐identify Galactic high‐energy sources. The star by itself finally turned out to be a very ordinary main‐sequence star despite the initial expectations that apparently pointed to the contrary.
Josep Martí   +5 more
wiley   +1 more source

TeV gamma-ray emission from accreting binary pulsars [PDF]

open access: yes, 1990
The high-mass X-ray binary SMC X-1 has been observed during the interval 1986-1989 at a threshold γ-ray energy of 0.4 TeV using the University of Durham Mark III air Cerenkov telescope at Narrabri.
Mannings, Vincent, Mannings, V
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The sensitivity of the Durham mk6 ground-based atmospheric cherenkov telescope to very high energy gamma-ray sources [PDF]

open access: yes, 2001
The subject of this thesis is a determination of the sensitivity of the Durham Mk6 ground based Imaging Atmospheric Cherenkov Telescope (lACT), an instrument which uses the imaging atmospheric Cherenkov technique to detect Very High Energy (VHE) gamma ...
Lyons, Karl, Lyons, K.
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Fermi-LAT Discovery of a Gamma-Ray Outburst from the Peculiar Compact Steep Spectrum Radiogalaxy 3C 216

open access: yesThe Astrophysical Journal
3C 216 is an extragalactic radio source classified as a compact steep spectrum (CSS) object, associated with the source 4FGL J0910.0+4257 detected by the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope.
Federica Giacchino   +5 more
doaj   +1 more source

Fermi Gamma-Ray Space Telescope: Highlights of the GeV Sky [PDF]

open access: yes, 2011
Because high-energy gamma rays can be produced by processes that also produce neutrinos. the gamma-ray survey of the sky by the Fermi Gamma-ray Space Telescope offers a view of potenl ial targds for neutrino observations. Gamma-ray bursts.
Thomspon, D. J.
core  

Fermi Gamma-Ray Space Telescope - Science Highlights for the First Two Years on Orbit [PDF]

open access: yes, 2011
Fermi science objectives cover probably everything in high energy astrophysics: How do super massive black holes in Active Galactic Nuclei create powerful jets of material moving at nearly light speed? What are the jets made of?
Moiseev, Alexander
core  

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