Results 61 to 70 of about 1,645,326 (221)
Very-high-energy gamma-ray emission from GRB 201216C detected by MAGIC
Institute for Cosmic Ray Research, The University of Tokyo, Kashiwanoha 5-1-5, Kashiwa, Japan Max Planck Institut for Physics,Föhringer Ring 6, Munich, Germany INFN MAGIC Group: INFN Sezione di Bari and Dipartimento Interateneo di Fisica dell’Università ...
S. Fukami+194 more
semanticscholar +1 more source
High Energy Astrophysics and Cosmology [PDF]
AbstractA brief review is given of cosmological tests based on quasars, of source evolution and of the X-ray background. The cosmological tests are still inconclusive because of the limited material available and the possibility of serious selection effects.
openaire +2 more sources
High Energy Astrophysical Techniques [PDF]
This textbook presents ultraviolet and X-ray astronomy, gamma-ray astronomy, cosmic ray astronomy, neutrino astronomy, and gravitational wave astronomy as distinct research areas, focusing on the astrophysics targets and the requirements with respect to instrumentation and observation methods.
openaire +3 more sources
We revisit the idea that the Galactic Center (GC) is the dominant source of galactic cosmic rays (GCRs), based on a series of new observational evidence. A unified model is proposed to explain the new phenomena of GCRs and γ -rays simultaneously.
Yi-Qing Guo+4 more
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The Telescope Array (TA) experiment is measuring cosmic rays of energies from PeV to 100 EeV and higher in the Northern hemisphere. TA has two parts: main TA and the TA low energy extension (TALE).
Ivanov Dmitri
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Delensing for precision cosmology: optimizing future CMB B-mode surveys to constrain r
The detection of primordial B-modes, a key probe of cosmic inflation, is increasingly challenged by contamination from weak gravitational lensing B-modes induced by large-scale structure (LSS).
Wen-Zheng Chen+3 more
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A Model for Nonthermal Particle Acceleration in Relativistic Magnetic Reconnection
The past decade has seen an outstanding development of nonthermal particle acceleration in magnetic reconnection in magnetically dominated systems, with clear signatures of power-law energy distributions as a common outcome of first-principles kinetic ...
Xiaocan Li, Fan Guo, Yi-Hsin Liu, Hui Li
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Wide field imager instrument for the Advanced Telescope for High Energy Astrophysics
. The Advanced Telescope for High Energy Astrophysics (Athena) has been selected for ESA’s L2 mission, scheduled for launch in 2028. It will provide the necessary capabilities to achieve the ambitious goals of the science theme “The Hot and Energetic ...
N. Meidinger+7 more
semanticscholar +1 more source
New Timing Results of MSPs from NICER Observations
Millisecond pulsars (MSPs) are known for their long-term stability. Using six years of observations from the Neutron Star Interior Composition Explorer (NICER), we have conducted an in-depth analysis of the X-ray timing results for six MSPs: PSRs B1937 ...
Shijie Zheng+12 more
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In this work, we have analytically computed the holographic transport coefficients for $$(2+1)$$ ( 2 + 1 ) -dimensional strongly coupled field theories, placed in a spatially modulated chemical potential along the x-direction, in the presence of Born ...
Ankur Srivastav+2 more
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