ORFEUS II echelle spectra: deuterium and molecular hydrogen in the ISM towards BD +39 3226

H. Bluhm, O. Marggraf, K. S. de Boer +2

In ORFEUS II spectra of the sdO star BD +39 3226 interstellar hydrogen and deuterium is detected. From Ly alpha profile fitting and a curve of growth analysis of the Lyman series o…