X-ray heating from primordial black holes assumed to seed high-redshift AGNs shallows the global 21-cm absorption signal and suppresses its power amplitude at cosmic dawn, with strong dependence on the PBH mass function.
D., Bordenave , D
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The paper reviews the scientific potential and technical considerations for a small-satellite constellation in lunar orbit to map the decameter radio sky and measure the global spectrum, building on past and ongoing experiments.
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Impact of Primordial Black Hole population on 21 cm observables at high redshift
X-ray heating from primordial black holes assumed to seed high-redshift AGNs shallows the global 21-cm absorption signal and suppresses its power amplitude at cosmic dawn, with strong dependence on the PBH mass function.
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Discovering the Sky at the Longest Wavelengths with Small Satellite Constellations
The paper reviews the scientific potential and technical considerations for a small-satellite constellation in lunar orbit to map the decameter radio sky and measure the global spectrum, building on past and ongoing experiments.