Uncertainties in the Determination of Primordial D/H

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dc.creatorSongaila, Antoinette
dc.date1997-09-30
dc.date.accessioned2026-07-07T02:24:21Z
dc.date.available2026-07-07T02:24:21Z
dc.descriptionThe current status of high redshift D/H measurements is discussed. I first examine whether the observations of HS1937-1009 require a low value of D/H. It is shown that the LRIS measurements of the continuum break and the high resolution Lyman series data can easily be modelled with D/H in the range 5 x 10^(-5) to 10^(-4). I then discuss measurements on weaker Lyman limit systems. A statistical treatment of 10 partial Lyman limit systems favors D/H between 5 x 10^(-5) and 2 x 10^(-4).
dc.description8 pages LaTeX (aaspp4) with 3 encapsulated postscript figures. Also available at http://www.ifa.hawaii.edu/faculty/acowie/iap.html . To be published in Proceedings of the 13th IAP Colloquium: Structure and Evolution of the IGM from QSO Absorption Lines
dc.identifierhttps://arxiv.org/abs/astro-ph/9709293
dc.identifierhttp://arxiv.org/abs/astro-ph/9709293
dc.identifier``Structure and Evolution of the Intergalactic Medium from QSO Absorption Line Systems'' eds. P. Petitjean and S. Charlot (Editions Frontieres, Paris, 1997), 339-344
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/11588
dc.subjectAstrophysics
dc.titleUncertainties in the Determination of Primordial D/H
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