Results 11 to 20 of about 238,114 (290)

Nuclear and High-Energy Astrophysics [PDF]

open access: yes, 2002
There has never been a more exciting time in the overlapping areas of nuclear physics, particle physics and relativistic astrophysics than today. Orbiting observatories such as the Hubble Space Telescope, Rossi X-ray Timing Explorer (RXTE), Chandra X-ray
Weber, Fridolin
core   +3 more sources

Phase transitions and geothermodynamics of black holes in dRGT massive gravity

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
In this paper, we study the thermodynamics and geothermodynamics of spherical black hole solutions in dRGT massive gravity in a new extended phase space. Inspire by the work of Kastor et al.
M. Chabab   +3 more
doaj   +1 more source

High energy neutrino astrophysics [PDF]

open access: yes, 1998
I give a brief discussion of possible sources of high energy neutrinos of astrophysical origin over the energy range from $\sim 10^{12}$ eV to $\sim 10^{25}$ eV. In particular I shall review predictions of the diffuse neutrino intensity.
Protheroe, R. J.
core   +2 more sources

Soft scattering evaporation of dark matter subhalos by inner galactic gases

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
The large gap between a galactic dark matter subhalo’s velocity and its own gravitational binding velocity creates the situation that small subhalos can be evaporated before dark matter thermalize with baryons due to the low binding velocity.
Xiao-jun Bi   +4 more
doaj   +1 more source

Timescale Spectra in High Energy Astrophysics [PDF]

open access: yes, 2002
A technique of timescale analysis performed directly in the time domain has been developed recently. We have applied the technique to studying rapid variabilities of hard X-rays from neutron star and black hole binaries, gamma-ray bursts and terrestrial ...
D Kazanas   +6 more
core   +3 more sources

Fermi-LAT Observation of PSR B1259-63 during Its 2021 Periastron Passage

open access: yesUniverse, 2021
PSR B1259-63 is a γ-ray binary system, where the compact object is a pulsar. The system has an orbital period of 1236.7 days and shows peculiar γ-ray flares (in 100 MeV–300 GeV) after its periastron time.
Zhi Chang   +5 more
doaj   +1 more source

DAMA/LIBRA-phase1 results and perspectives of the phase2

open access: yesEPJ Web of Conferences, 2015
The results obtained with the total exposure of 1.04 ton × yr collected by DAMA/LIBRA–phase1 deep underground at the Gran Sasso National Laboratory (LNGS) of the I.N.F.N. during 7 annual cycles are summarized.
Bernabei R.   +16 more
doaj   +2 more sources

Viscous attenuation of gravitational waves propagating through an inhomogeneous background

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We consider the propagation of gravitational waves in the late-time Universe in the presence of matter distribution inhomogeneities, and we also consider the cosmic fluid to be viscous.
Shashank Shekhar Pandey   +3 more
doaj   +1 more source

Supergalactic Structure of Multiplets with the Telescope Array Surface Detector [PDF]

open access: yesEPJ Web of Conferences, 2019
Evidence of supergalactic structure of multiplets has been found for ultra-high energy cosmic rays (UHECR) with energies above 1019 eV using 7 years of data from the Telescope Array (TA) surface detector.
Lundquist Jon Paul, Sokolsky Pierre V.
doaj   +1 more source

Position Resolution in LaBr3 and LaCl3 Scintillators Using Position-Sensitive Photomultiplier Tubes [PDF]

open access: yes, 2006
Advanced scintillator materials such as LaBr3:Ce and LaCl3:Ce hold great promise for future hard X-ray and gamma-ray astrophysics missions due to their high density, high light output, good linearity, and fast decay times.
Baker, Justin   +4 more
core   +2 more sources

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