Deuterium and Helium Absorption at High Redshift: Mapping the Abundance, Density and Ionization of Primordial Gas

Details Deuterium and Helium Absorption at High Redshift: Mapping the Abundance, Density and Ionization of Primordial Gas Deuterium and Helium Absorption at High Redshift: Mapping the Abundance, Density and Ionization of Primordial Gas

1997-02-04

arxiv.org/abs/astro-ph/9702044v4

Astronomy and Astrophysics

Astrophysics

11 pages, LaTeX, including 4 figures. To appear in the Proceedings of the 18th Texas Symposium on Relativistic Astrophysics

Scientific paper

Spectra of quasars at high redshift with high resolution and high signal-to-noise allow in favorable circumstances detection of absorption by deuterium and ultimately measurement of its primordial abundance. Ultraviolet spectra of high redshift quasars allow measurement of absorption by the most abundant cosmic absorber, singly ionized helium, thereby mapping gas even in the most rarefied cosmic voids. These new techniques already provide significant constraints on cosmological models but will soon become much more precise.

Affiliated with

Also associated with

No associations

Rating

Deuterium and Helium Absorption at High Redshift: Mapping the Abundance, Density and Ionization of Primordial Gas does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Deuterium and Helium Absorption at High Redshift: Mapping the Abundance, Density and Ionization of Primordial Gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Deuterium and Helium Absorption at High Redshift: Mapping the Abundance, Density and Ionization of Primordial Gas will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-671589