Results 61 to 70 of about 18,734,225 (295)

The X-ray properties and structure of A3571 up to R500

Astronomy & Astrophysics
Abell 3571 is a nearby, X-ray-bright galaxy cluster located in the Shapley Supercluster. Although it appears morphologically relaxed in X-ray images, multiwavelength observations reveal subtle indications of residual dynamical activity likely associated ...
Zheng X., Yu H., Jia S., Li C., Hou X., Liu A., Chen Y., Feng H., Song L., Liu C., Lu F., Zhang S., Yuan W., Sanders J., Wang J., Nandra K., Cui W., Guan J., Han D., Jin C., Liu Y., Xu J., Zhang J., Zhao H., Zhao X.   +24 more
doaj   +1 more source

Cosmic-ray acceleration in supernova remnants [PDF]

, 2010
Supernovae are among the most energetic events in the Universe. During the event, they expel their material with enormous speeds into the surroundings.
Helder, E.A., Astrophysics, Sub High energy Astrophysics begr 1/1/15   +2 more
core   +1 more source

THE RELATION BETWEEN POST-SHOCK TEMPERATURE, COSMIC-RAY PRESSURE, AND COSMIC-RAY ESCAPE FOR NON-RELATIVISTIC SHOCKS [PDF]

, 2010
Supernova remnants (SNRs) are thought to be the dominant source of Galactic cosmic rays. This requires that at least 5% of the available energy is transferred to cosmic rays, implying a high cosmic-ray pressure downstream of SNR shocks.
Yamazaki, R, Schure, KM, Vink, J, Astrophysics, Jacco Vink, Ryo Yamazaki, Eveline A. Helder, Vink, J., Yamazaki, R., Helder, E.A., Schure, K.M., Helder, EA, K. M. Schure, Sub High energy Astrophysics begr 1/1/15   +13 more
core   +1 more source

Generalized Chemical Model for Warm Dense Hydrogen: Ionization Potential Depression and Molecular Dissociation Shifts

Contributions to Plasma Physics, EarlyView.
ABSTRACT Warm dense matter (WDM) is a complex state, where quantum effects, thermal excitations, and strong interparticle correlations coexist. Understanding its microscopic composition and medium‐induced modifications of atomic and molecular properties is essential for planetary modeling, fusion research, and high‐energy‐density experiments.
L. T. Yerimbetova, Yu. V. Arkhipov, Ye. S. Mukhametkarimov, A. E. Davletov, I. M. Tkachenko   +4 more
wiley   +1 more source

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

Chaos in charged AdS black hole extended phase space

Physics Letters B, 2018
We present an analytical study of chaos in a charged black hole in the extended phase space in the context of the Poincare–Melnikov theory. Along with some background on dynamical systems, we compute the relevant Melnikov function and find its zeros ...
M. Chabab, H. El Moumni, S. Iraoui, K. Masmar, S. Zhizeh   +4 more
doaj   +1 more source

Outflow and feedback in active galactic nuclei: high-resolution X-ray spectroscopy and variability [PDF]

, 2011
Active Galactic Nuclei (AGN) are accreting supermassive black holes at the centers of galaxies. They can have a profound impact on the evolution of their host galaxies and surroundings by means of their outflows of ionized gas.
Astrophysics, Detmers, R.G., Sub High energy Astrophysics begr 1/1/15   +2 more
core   +1 more source

Quenching the Hubbard Model: Comparison of Nonequilibrium Green's Function Methods

Contributions to Plasma Physics, EarlyView.
ABSTRACT We benchmark nonequilibrium Green's function (NEGF) approaches for interaction quenches in the half‐filled Fermi–Hubbard model in one and two dimensions. We compare fully self‐consistent two‐time Kadanoff–Baym equations (KBE), the generalized Kadanoff–Baym ansatz (GKBA), and the recently developed NEGF‐based quantum fluctuations approach (NEGF‐
Jan‐Philip Joost, Christopher Makait, Alexander Osterkorn, Erik Schroedter   +3 more
wiley   +1 more source

High Energy Astrophysics

, 1991
The development of the atmospheric Cherenkov imaging technique has led to significant advances in gamma-ray detection sensitivity in the energy range from 200 GeV to 50 TeV. The Whipple Observatory 10m reflector has detected the first galactic and extragalactic sources in the Northern Hemisphere; the Crab Nebula has been established as the standard ...
  +5 more sources

Delensing for precision cosmology: optimizing future CMB B-mode surveys to constrain r

European Physical Journal C: Particles and Fields
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, Yang Liu, Yi-Ming Wang, Hong Li   +3 more
doaj   +1 more source