Search for HI Reionization Epoch in the Early Universe

Details Search for HI Reionization Epoch in the Early Universe Search for HI Reionization Epoch in the Early Universe

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003basi...31..451s&link_type=abstract

Bulletin of the Astronomical Society of India, vol. 31, p.451-452

Astronomy and Astrophysics

Astronomy

Gmrt, Cmb, Reionization, Rfi, Hi, Early Universe.

Scientific paper

One of the most challenging problems in astronomy today is to search for reionization of the neutral hydrogen (HI), which is expected to occur somewhere between redshifts of about 6 to 20. The reionization is likely to result in spatial and spectral fluctuations in emission and absorption in the redshifted 21cm radiation of several milli-Kelvin (mK) in the frequency range of about 100 to 200 MHz. Also there is expected to occur a gradual step of few mK in the global 21cm radiation. Here we discuss various search strategies.

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