Searching for Ionized Bubbles in 21-cm Maps

Details Searching for Ionized Bubbles in 21-cm Maps Searching for Ionized Bubbles in 21-cm Maps

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..407...39d&link_type=abstract

The Low-Frequency Radio Universe ASP Conference Series, Vol. 407, proceedings of the conference held 8-12 December 2008, at Nati

Astronomy and Astrophysics

Astrophysics

Scientific paper

The reionization of the Universe, it is believed, occurred by the growth of ionized regions (bubbles) in the neutral intergalactic medium (IGM). Using the method of Datta, Bharadwaj & Choudhury (2007) for detecting ionized bubbles in 21-cm maps we use various realistic simulations of HI distribution surrounding an ionized bubble to study the effect of HI fluctuations on the blind search for ionized bubbles in 21-cm maps. Results are presented for 1000 hours of GMRT observations at redshift z=6 which corresponds to frequency 203~MHz.

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