looking for base line

Forums Spectroscopy Radius Estimation of VV Cep´s disk looking for base line

Ernst Pollmann

Dear colleagues, I have tried, from spectra of different observers to find base lines of the Halpha emission components V & R out of eclipse. At least the peak heights of both seems to provide a good chance to determine the exact beginning of the eclipse. The dispersion of the measurements comes from the “natural” activities of mass transfer from the M2 super giant into the B star disk (EW & V/R variability). Comments are welcome!