Preliminary results of analysis of spectral observations on BTA for a sample of $\delta$ Sct-type stars

This article presents the results of processing and analysis of the spectra of 13 $\delta$ Sct-type stars. The observations were made in October, 2008 with the 6-m telescope BTA of the Special Astrophysical Observatory, Russian Academy of Sciences. In addition to the primary processing of the spectra, we determined preliminary values of the stellar atmospheric parameters (effective temperatures and gravities) based on the photometric data and measured the equivalent widths of the spectral lines and the stellar radial velocities.