Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007chjaa...7..304l&link_type=abstract
Chinese Journal of Astronomy and Astrophysics, Volume 7, Issue 2, pp. 304-316 (2007).
Astronomy and Astrophysics
Astrophysics
Masers, Plasmas, Radiation Mechanisms: Non-Thermal
Scientific paper
Synchro-curvature radiation describes the emission from a relativistic charged particle which is moving and spiralling in a curved magnetic field. We investigate the maser emission for synchro-curvature radiation including drift of the guiding center of the radiating electron. It is shown that under some conditions the absorption coefficient can be negative, so maser can happen. These conditions are different from those needed for maser emission of curvature radiation including drift of the charged particles. We point out that our results, including the emissivity, can reduce to these of curvature radiation. Previously it was found that synchro-curvature radiation cannot generate maser in vacuum, but we argue that synchro-curvature radiation including drift can generate maser even in vacuum. We discuss the possibilities of the potential applications of the synchro-curvature maser in modeling gamma ray bursts and pulsars.
Deng Xiao-Long
Liu Jiong
Yuan Ye-Fei
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