Results 31 to 40 of about 214,465 (268)
After the jet break at t ~ 1.4 days, the optical afterglow emission of the long-short burst GRB 060614 can be divided into two components. One is the power-law decaying forward shock afterglow emission.
Jin Zhi-Ping, Fan Yi-Zhong, Wei Da-Ming
doaj +1 more source
DARK MATTER, AND ITS DARKNESS [PDF]
Assuming the validity of the general relativistic description of gravitation on astrophysical and cosmological length scales, we analytically infer that the Friedmann–Robertson–Walker cosmology with Einsteinian cosmological constant, and a vanishing spatial curvature constant, unambiguously requires a significant amount of dark matter.
openaire +3 more sources
Black hole evaporation beyond the Standard Model of particle physics
The observation of an evaporating black hole would provide definitive information on the elementary particles present in nature. In particular, it could discover or exclude particles beyond those present in the standard model of particle physics.
Michael J. Baker, Andrea Thamm
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Dark matter from dark photons: A taxonomy of dark matter production [PDF]
18 pages, 14 ...
Thomas Hambye +3 more
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In this paper, we investigate the thread oscillations in a quiescent prominence observed by New Vacuum Solar Telescope at the Hα line center on 17 April 2024.
Mingbao Gao +7 more
doaj +1 more source
Probable evidence for a transient mega-electron volt emission line in the GRB 221023A
Detection of spectral line in gamma-ray bursts (GRBs) is importance for studying GRB physics, as it provides insights into the composition and physical conditions of the GRB environment.
Lu-Yao Jiang +8 more
doaj +1 more source
COMPOSITE DARK MATTER AND PUZZLES OF DARK MATTER SEARCHES [PDF]
Positive results of dark matter searches in DAMA/ NaI and DAMA/LIBRA experiments, being put together with the results of other groups, can imply nontrivial particle physics solutions for cosmological dark matter. Stable particles with charge -2, bound with primordial helium in O -helium "atoms" ( OHe ), represent a specific warmer than cold nuclear ...
Khlopov, Maxim +2 more
openaire +4 more sources
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace +6 more
wiley +1 more source
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara +3 more
wiley +1 more source
Constrains on the electric charges of the binary black holes with GWTC-1 events
Testing black hole’s charged property is a fascinating topic in modified gravity and black hole astrophysics. In the first Gravitational-Wave Transient Catalog (GWTC-1), ten binary black hole merger events have been formally reported, and these ...
Hai-Tang Wang +5 more
doaj +1 more source

