ON THE MEASUREMENTS OF D H IN QSO ABSORPTION SYSTEMS/

Authors
BURLES S TYTLER D
Citation
S. Burles et D. Tytler, ON THE MEASUREMENTS OF D H IN QSO ABSORPTION SYSTEMS/, Space science reviews, 84(1-2), 1998, pp. 65-75
Citations number
28
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Space science reviews → ACNP
ISSN journal
00386308
Volume
84
Issue
1-2
Year of publication
1998
Pages
65 - 75
Database
ISI
SICI code
0038-6308(1998)84:1-2<65:OTMODH>2.0.ZU;2-A
Abstract
We present our measurements of the deuterium to hydrogen ratio (D/H) i n QSO absorption systems, which give D/H = 3.40 +/- 0.25 x 10(-5) base d on analysis of four independent systems. We discuss the properties o f two systems which provide the strongest constraints on D/H. We outli ne the systematic effects involved in measurements of D/H and introduc e a sophisticated method of analysis which properly accounts for these effects.