Impact of Hadronic Axions on Black Hole Accretion Discs and Neutron Stars

Details Impact of Hadronic Axions on Black Hole Accretion Discs and Neutron Stars Impact of Hadronic Axions on Black Hole Accretion Discs and Neutron Stars

2000-06-29

arxiv.org/abs/hep-ph/0006337v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Masters Thesis (TU Munich), 63 pp

Scientific paper

We re-examine the possibility of an astrophysically allowed KSVZ-type axion that has a strongly suppressed coupling to photons. We then investigate the impact of such ''hadronic axions'' on two classes of astrophysical objects: black hole accretion disc (BHAD) based gamma-ray bursts and isolated neutron-stars. Although our results are sensitive to details of the underlying models, we show that hadronic axions could in principle play an important role in the evolution of gamma-ray bursts and in the cooling behaviour of neutron stars.

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