2003/09/03 by Alexandre Marcowith, J. Malzac, Julien Malzac
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics and Cosmic Phenomena #Atomic physics #Computational physics #Cyclotron #Electron #Harmonic #Harmonics #Magnetic field #Physics #Plasma #Pulsars and Gravitational Waves Research #Quantum electrodynamics #Quantum mechanics #Relativistic particle #Relativistic plasma #Relativistic quantum chemistry #Synchrotron #astro-ph
paper · pdf · doi:10.1051/0004-6361:20031060
published as Astron.Astrophys.409:9-20,2003 · 11 pages, 11 figures, accepted for publication in Astronomy & Astrophysics
arxiv created 2003/09/03 · openalex publication_date 2003/09/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The present work investigates the calculation of absorption and emission cyclotron line profiles in the non-relativistic and trans-relativistic regimes. We provide fits for the ten first harmonics with synthetic functions down to 10-4 of the maximum flux with an accuracy of 20% at worst. The lines at a given particle energy are calculated from the integration of the Schott formula over the photon and the particle solid angles relative to the magnetic field direction. The method can easily be extended to a larger number of harmonics. We also derive spectral fits of thermal emission line plasmas at non-relativistic and trans-relativistic temperatures extending previous parameterisations.