SIMBAD references

The analysis of twelve spectra of the Bp He-weak Si star HD 175362 recorded by the SWP camera on board the International Ultraviolet Explorer reveals variations of the far-ultraviolet spectral energy distribution over a time interval of several years. Variations are present shortwards of 1700 Å which can be partly attributed to variations of lines and continuum of Si II. Other lines due to C II, Si III and Si IV also contribute to the opacity in this range too. The variations suggest that silicon and carbon are not distributed in a uniform manner over the surface.