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6 papers · 2 filters
Combined fit of spectrum and composition data as measured by the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +397
We present a combined fit of a simple astrophysical model of UHECR sources to both the energy spectrum and mass composition data measured by the Pierre Auger Observatory. The fit h…
Constraining Black Holes with Light Boson Hair and Boson Stars using Epicyclic Frequencies and QPOs
Nicola Franchini, Paolo Pani, Andrea Maselli +4
Light bosonic fields are ubiquitous in extensions of the Standard Model. Even when minimally coupled to gravity, these fields might evade the assumptions of the black-hole no-hair…
Multi-resolution anisotropy studies of ultrahigh-energy cosmic rays detected at the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +400
We report a multi-resolution search for anisotropies in the arrival directions of cosmic rays detected at the Pierre Auger Observatory with local zenith angles up to and…
Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy
The Pierre Auger Collaboration, Alexander Aab, Pedro Abreu +447
We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Au…
Azimuthal asymmetry in the risetime of the surface detector signals of the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +436
The azimuthal asymmetry in the risetime of signals in Auger surface detector stations is a source of information on shower development. The azimuthal asymmetry is due to a combinat…
Low-mass neutron stars: universal relations, the nuclear symmetry energy and gravitational radiation
Hector O. Silva, Hajime Sotani, Emanuele Berti
The lowest neutron star masses currently measured are in the range , but these measurement have either large uncertainties or refer to isolated neutron stars. The…