First deuterium results with FUSE

Details First deuterium results with FUSE First deuterium results with FUSE

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002sf2a.conf...53h&link_type=abstract

SF2A-2002: Semaine de l'Astrophysique Francaise, meeting held in Paris, France, June 24-29, 2002, Eds.: F. Combes and D. Barret,

Astronomy and Astrophysics

Astrophysics

Scientific paper

Deuterium abundance measurements allow constraints to be put on the Big Bang Nucleosynthesis, the baryonic content of the Universe, and the chemical evolution of galaxies. Such measurements in a variety of astrophysical environments are one of the main objectives of the Far Ultraviolet Spectroscopic Explorer (FUSE) mission. The first results are presented here. Beside a tentative detection in Jupiter, deuterium absorption lines are seen toward a few extragalactic targets and tens of interstellar sight lines. In the local interstellar medium (within 100 pc), it is likely that the D/H and D/O ratios have both a single value in the local interstellar medium. They may present spatial variations beyond the Local Bubble.

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