FUSE Observations towards HD 34078 Detection of highly excited H2 and HD
Abstract
We present FUSE observations of the extincted O9.5 star, HD 34078. The 19 first levels of H2 are detected (i.e. from J=0 to v=1, J=5) as well as HD in its two first levels. The excitation of H2 up to J=7 can be explained using a combination of Photon Dominated Region (PDR) and MHD shock models. However, understanding the large amount of H2 found in higher excitation states seems to require more energetic processes that have yet to be identified.
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