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Accreting Compact Objects at Cosmic Dawn

Presentation #403.05 in the session “Implications and Tracers of the Energetic Processes at Cosmic Dawn”.

Published onApr 01, 2022
Accreting Compact Objects at Cosmic Dawn

The first stars in the first galaxies created the first nuclear-powered light, the first heavy metals, and reionized the intergalactic medium. We describe studies of X-ray sources in low-metallicity star-bursting dwarfs that are local analogs of the first galaxies. We review the effect of metallicity on X-ray binary populations and the nature of X-ray sources in Lyman continuum emitting galaxies. We discuss the implications for the role of accretion powered sources in the early universe.


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