The 21cm Signal
The 21cm Signal
The 21cm Signal
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425/h Mpc<br />
simulation<br />
δT b ∝ x HI δ<br />
<strong>The</strong> Redshifted <strong>21cm</strong> Sky<br />
Just as the CMB, the redshifted <strong>21cm</strong> signal fills the sky<br />
with a fluctuating signal.<br />
– Gas density of the IGM (δ) (<br />
Count total number of<br />
– Appearance of ionized regions (x HI ) ionizing photons!<br />
– Excitation variations (T s )<br />
δT b<br />
3’ beam<br />
26 April 2012 EoR2012, Strasbourg 8<br />
Iliev, GM, et al (2012)
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