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Kneelike structure in the spectrum of the heavy component of cosmic rays observed with KASCADE-Grande
ultra-high energy cosmic rays KASCADE-Grande composition extensive air shower
2011/10/20
We report the observation of a steepening in the cosmic ray energy spectrum of heavy primary particles at about $8 \times 10^{16}$ eV. This structure is also seen in the all-particle energy spectrum, ...
Structure, Deformations and Gravitational Wave Emission of Magnetars
Structure, Deformations Gravitational Wave Emission of Magnetars
2010/11/15
Neutron stars can have, in some phases of their life, extremely strong magnetic fields, up to 1015−16 G. These objects, named magnetars, could be powerful sources of gravitational waves, since t...
In this concise, albeit subjective review of structure formation, I shall introduce the cosmological standard model and its theoretical and observational underpinnings. I will focus on recent results ...
Accretion and Structure of Radiating Disks
Solar and Stellar Astrophysics (astro-ph.SR) High Energy Astrophysical Phenomena (astro-ph.HE)
2010/12/27
The structure of rotating disks is routinely found assuming a hydrostatic equilibrium. We study here a more satisfactory hydrostationary model that selfconsistently takes into account selfgravitation ...
Explanation of the sea-serpent magnetic structure of sunspot penumbrae
sunspots Sun magnetic fields
2010/3/9
Recent spectro-polarimetric observations of a sunspot showed the formation of bipolar magnetic patches in the mid penumbra and their propagation toward the outer penumbral boundary. The observations w...