Ferrario, LiliaWickramasinghe, D. T.2026-01-012026-01-010004-637Xhttps://hdl.handle.net/1885/733801295We discuss the properties of cyclotron radiation originating from homogeneous arc-shaped emission regions, taking into account the effects of field spread across the shock. We find that arc-shaped cyclotron emission regions give rise to asymmetric light and polarization curves which are in closer agreement with observations of some AM Herculis systems than previous point-source and cylindrically extended models.9enRadiation mechanismsShock wavesStars: binariesStars: magnetic1990-07-1010.1086/1689460000771415