A Limit on the Depletion of Deuterium

Details A Limit on the Depletion of Deuterium A Limit on the Depletion of Deuterium

Oct 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994mnras.270l..37e&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 270, NO. 3/OCT1, P. L37, 1994

Physics

27

Scientific paper

An assessment of the extent to which interstellar deuterium has been depleted by astration is important in the determination of the primordial deuterium abundance. It is shown that a general limit can be set on the amount of depletion that can occur, independent of the details of chemical evolution - provided that the initial mass function and stellar physics remain constant. The results imply either that the recently reported deuterium abundance in a QSO absorption system is an overestimate, or that the fraction of mass lost in winds from a generation of stars is considerably higher than normally assumed. Key words: stars: mass-loss - ISM: abundances - galaxies: abundances - quasars: absorption lines - early Universe.

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