A Westerbork search for high redshift H I

Details A Westerbork search for high redshift H I A Westerbork search for high redshift H I

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...256..331w&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 256, no. 2, p. 331-342.

Statistics

Computation

21

Cosmology, Red Shift, Universe, Computational Astrophysics, Ionization, Very Large Array (Vla)

Scientific paper

Results are presented of an extensive and sensitive search for neutral hydrogen at a redshift of about 3.3, performed using the Westerbork Synthesis Radio Telescope with the purpose to observe and study the properties of the precursors of rich clusters of galaxies. However, all searches performed to date have failed to detect any significant signal of H I. This indicates that some process, such as shock heating and/or the ionizing photon flux from primeval galaxies, has efficiently ionized the majority of the material in forming structures at z of about 3.3.

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