VARIATIONS OF SOME SPECTRAL LINES IN THE SPECTRUM OF V 1295 AQL

Abstract

The results of homogeneous spectral observations of the HAeBe-type star V1295 Aql obtained in 2016–2020 are presented. The variability of the profiles of the Hα, Hβ, FeII, SiII, [OI], D NaI spectral lines is considered. The Fe II lines show two emission peaks with central absorption, with the variable displacement from +15 to -5 km/s in different years. Almost all metal lines show changes in the radial velocity and the equivalent width of the emission components. The profile structure show variability in a complex form, but more often with two peaks superimposed on the line wings. The same structures in profiles also observed in purely absorption lines. [OI] λ6300 Å line shows a weak form redshift, indicating the observation of accretion in the outer layers.
Despite this, most likely, the star has a strong chromosphere activity.