TL;DR
This paper studies photon emission mechanisms from the electrosphere of quark stars, highlighting bremsstrahlung as the dominant process at certain temperatures and showing it surpasses other mechanisms like pair creation.
Contribution
It introduces a detailed analysis of photon emission from quark star electrospheres, emphasizing the dominance of mean field bremsstrahlung over other processes.
Findings
Mean field bremsstrahlung dominates at T~0.1-1 MeV.
Energy flux from bremsstrahlung exceeds Bethe-Heitler and pair creation.
LPM suppression of photon emission is negligible.
Abstract
We investigate the photon emission from the electrosphere of a quark star. It is shown that at temperatures T\sim 0.1-1 MeV the dominating mechanism is the bremsstrahlung due to bending of electron trajectories in the mean Coulomb field of the electrosphere. The radiated energy for this mechanism is much larger than that for the Bethe-Heitler bremsstrahlung. The energy flux from the mean field bremsstrahlung exceeds the one from the tunnel e^{+}e^{-} pair creation as well. We demonstrate that the LPM suppression of the photon emission is negligible.
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