648 citations · 7.8k across the 137 of their papers we have counts for
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High Energy Astroparticle Physics
Guenter Sigl
We give a brief (and highly incomplete) overview of the current experimental and theoretical status of high energy cosmic rays and their secondary gamma-rays and neutrinos. We focu…
Gravitational-wave background from compact objects embedded in AGN accretion disks
Guenter Sigl, Jeremy Schnittman, Alessandra Buonanno
We consider a model in which massive stars form in a self-gravitating accretion disk around an active galactic nucleus (AGN). These stars may evolve and collapse to form compact ob…
Ultra High Energy Cosmic Radiation: Experimental and Theoretical Status
Guenter Sigl
We give a brief overview of the current experimental and theoretical status of cosmic rays above ~10**17 eV. We focus on the role of large scale magnetic fields and on multi-messen…
Gravitational Waves from Compact Objects Accreting onto Active Galactic Nuclei
Jeremy D. Schnittman, Guenter Sigl, Alessandra Buonanno
We consider a model in which massive stars form in a self-gravitating accretion disk around an active galactic nucleus. These stars may evolve and collapse to form compact objects…
Cosmological Gravitational Wave Background from Phase Transitions in Neutron Stars
Guenter Sigl
It has recently been suggested that collapse of neutron stars induced by a phase transition to quark matter can be a considerable source of gravitational waves with kHz frequencies…