The Hidden Disk Emission in the Single Peaked Sy1 Balmer Emission Lines

摘要

In order to investigate hidden disk emission in the single peaked Broad Emission Lines (BEL) we simulated profiles with simplified model consisted of two components: accretion disk and surrounding spherical region with isotropic velocities of clouds. Then, we measured full widths at 10%, 20% and 30% of the maximum intensity and normalized them to the full width at half maximum (FWHM). We compared these measurements for simulated and observed profiles, of a sample of 25 Seyfert 1, H and H emission lines, from SDSS database. We found that for these kind of broad single peaked emission profiles, the disk may be present. In this case the inclination of the disk should be i<20.