Helium in the Early Universe

Details Helium in the Early Universe Helium in the Early Universe

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990hst..prop.3051b&link_type=abstract

HST Proposal ID #3051

Mathematics

Probability

Hst Proposal Id #3051 Quasars &Amp, Agn

Scientific paper

We will use the FOS to measure the strength of the He I lambda 584 line in the UV in a QSO which has a good probability of having light at that wavelength. We will test the ability of the FOS to detect weak emission lines against a background of weak absorption lines in a faint object with the degraded performance due to the slit losses, decreased resolution, possible increased scattered light and greater than expected particle-induced background. From this line we will determine the relative abundance of Helium in the early universe.

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