Figure 2 (IMAGE)

Kavli Institute for the Physics and Mathematics of the Universe

Figure 2

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Expected sky-averaged hydrogen 21-cm signal from around 100 million years after the Big Bang. The black line represents the case without the structure formation shown in Figure 1. The blue and red lines correspond to scenarios where structures formed from cold and warm dark matter, respectively, as illustrated in Figure 1. 

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Park et al.

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