Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aspc..348...70l&link_type=abstract
Astrophysics in the Far Ultraviolet: Five Years of Discovery with FUSE ASP Conference Series, Vol. 348, Proceedings of the Confe
Astronomy and Astrophysics
Astrophysics
1
Scientific paper
I present the latest compilation of D/H measurements by FUSE and previous satellites. The most likely explanation of the wide range in the gas phase (D/H)gas values beyond the Local Bubble is deuterium depletion on to dust grains, which is supported by both theory and the correlation of (D/G)gas with iron depletion. I propose that the best value for the (D/H)total ratio (gas and dust) within 1 kps of the Sun is 23.4± 1.4 ppm, which indicates that deuterium astration has been much smaller that recent models predict.
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