Following the HeII4686 and the HeI5876 here is the study of the HeII5411 line of the wolf rayet star WR134. I present a time serie of three spectra taken during a total exposure of 2H40, with 2X1h spectra and 1X40minutes for the last one. small active...

Following the study of HeII4686, here is the HeI 5876 extracted from an order of an eshell spectrum of 9600s exposure and sampled to 3600s and 7200s for comparison. SNR is better than in the blue region, normal with the better sensitivity of the ccd,...