Results 51 to 60 of about 2,741,953 (182)

Information theoretic measures for Lifshitz system

Journal of High Energy Physics
In this work, we have studied various mixed state information theoretic quantities for an excited state of Lifshitz spacetime in 3 + 1-dimensions. This geometry is the gravity dual to a class of 2 + 1-dimensional quantum field theories having Lifshitz ...
Souvik Paul, Anirban Roy Chowdhury, Ashis Saha, Sunandan Gangopadhyay   +3 more
doaj   +1 more source

On the Galactic Center being the main source of galactic cosmic rays as evidenced by recent cosmic ray and gamma ray observations

New Journal of Physics, 2013
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, Zhao-Yang Feng, Qiang Yuan, Cheng Liu, Hong-Bo Hu   +4 more
doaj   +1 more source

TA Spectrum [PDF]

EPJ Web of Conferences, 2019
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
doaj   +1 more source

Wide field imager instrument for the Advanced Telescope for High Energy Astrophysics

, 2014
. 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, K. Nandra, M. Plattner, M. Porro, A. Rau, A. Santangelo, C. Tenzer, J. Wilms   +7 more
semanticscholar   +1 more source

A Model for Nonthermal Particle Acceleration in Relativistic Magnetic Reconnection

The Astrophysical Journal Letters, 2023
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
doaj   +1 more source

High-Energy Astrophysics

Undergraduate Lecture Notes in Physics, 2009
During a dramatic development of the field over the last decade, German groups and institutions have played central, often decisive, roles in high-energy astrophysics.
Fulvio Melia
semanticscholar   +1 more source

Cosmological and astrophysical aspects of finite-density QCD [PDF]

Nucl.Phys. A642 (1998) 336-348, 1998
The different phases of QCD at finite temperature and density lead to interesting effects in cosmology and astrophysics. In this work I review some aspects of the cosmological QCD transition and of astrophysics at high baryon density.
arxiv   +1 more source

Radio Detection of High Energy Neutrinos [PDF]

, 2016
This is a review on radio detection of high energy neutrinos.
arxiv   +1 more source

US Astronomical Photographic Data Archives: Hidden Treasures and Importance for High-Energy Astrophysics

, 2014
We report here on an ongoing investigation of US astronomical plate archives and tests of the suitability of transportable scanning devices for in situ digitization of archival astronomical plates, with emphasis on application in high-energy astrophysics.
R. Hudec, L. Hudec
semanticscholar   +1 more source

New Timing Results of MSPs from NICER Observations

Universe
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, Dawei Han, Heng Xu, Kejia Lee, Jianping Yuan, Haoxi Wang, Mingyu Ge, Liang Zhang, Yongye Li, Yitao Yin, Xiang Ma, Yong Chen, Shuangnan Zhang   +12 more
doaj   +1 more source