409 citations · 9.6k across the 232 of their papers we have counts for
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Active Galactic Nuclei: Sources for ultra high energy cosmic rays?
P. L. Biermann, J. K. Becker, L. Caramete +11
The origin of ultra high energy cosmic rays promises to lead us to a deeper understanding of the structure of matter. This is possible through the study of particle collisions at c…
New Limits on Sterile Neutrinos from Suzaku Observations of the Ursa Minor Dwarf Spheroidal Galaxy
Michael Loewenstein, Alexander Kusenko, Peter L. Biermann
We present results of our search for X-ray line emission associated with the radiative decay of the sterile neutrino, a well-motivated dark matter candidate, in Suzaku Observatory…
Air Shower Measurements with the LOPES Radio Antenna Array
A. Haungs
LOPES is set up at the location of the KASCADE-Grande extensive air shower experiment in Karlsruhe, Germany and aims to measure and investigate radio pulses from Extensive Air Show…
No observational constraints from hypothetical collisions of hypothetical dark halo primordial black holes with galactic objects
Marek A. Abramowicz, Julia K. Becker, Peter L. Biermann +3
It was suggested by several authors that hypothetical primordial black holes (PBHs) may contribute to the dark matter in our Galaxy. There are strong constraints based on the Hawki…
Supermassive binary black hole mergers
László Á. Gergely, Peter L. Biermann
When galaxies collide, dynamical friction drives their central supermassive black holes close enought to each other such that gravitational radiation becomes the leading dissipativ…
Neutrinos from active black holes, sources of ultra high energy cosmic rays
Julia K. Becker, Peter L. Biermann
A correlation between the highest energy Cosmic Rays (above ~ EeV) and the distribution of active galactic nuclei (AGN) gives rise to a prediction of neutrino production in the sam…