The 21cm Signal
The 21cm Signal
The 21cm Signal
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Imaging for First<br />
Generation Experiments<br />
Sensitivity of the upcoming EoR experiments will be too<br />
low to image <strong>21cm</strong> from reionization pixel by pixel: S/N ~<br />
0.2.<br />
Ways around:<br />
End of reionization: reionization:<br />
Low resolution imaging<br />
(resolution > 20’) of large neutral patches (Zaroubi et al.<br />
2012)<br />
Middle of reionization: reionization:<br />
Matched filter searches for<br />
isolated large “bubbles” (Datta et al. 2007, 2008, 2009,<br />
Friedrich et al. 2012)<br />
26 April 2012 EoR2012, Strasbourg 12
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