ORFEUS II echelle spectra : deuterium and molecular hydrogen in the ISM towards BD + 39 3226 ⋆
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چکیده
In ORFEUS II spectra of the sdO star BD +39 3226 interstellar hydrogen and deuterium is detected. From Ly α profile fitting and a curve of growth analysis of the Lyman se
منابع مشابه
Astronomy and Astrophysics Orfeus Ii Echelle Spectra: Deuterium and Molecular Hydrogen in the Ism towards Bd +39 3226
In ORFEUS II spectra of the sdO star BD +39 3226 interstellar hydrogen and deuterium is detected. From Ly α profile fitting and a curve of growth analysis of the Lyman series of H i and D i we derive the column densities NH = 1.20 −0.22·10 cm−2 and ND = 1.45 −0.38·10 cm−2. From the analysis of metal absorption lines in ORFEUS and IUE spectra we obtain column densities for 11 elements. In additi...
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