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Constraining Very High Mass Population III Stars through He II Emission in Galaxy BDF-521 at z = 7.01
Zheng Cai, Xiaohui Fan, Linhua Jiang +4
Numerous theoretical models have long proposed that a strong He II 1640 emission line is the most prominent and unique feature of massive Population III (Pop III) stars in high red…
A Glimpse at Quasar Host Galaxy Far-UV Emission, Using DLAs as Natural Coronagraphs
Zheng Cai, Xiaohui Fan, Pasquier Noterdaeme +12
In merger-driven models of massive galaxy evolution, the luminous quasar phase is expected to be accompanied by vigorous star formation in quasar host galaxies. In this paper, we u…
A physical model for the evolving UV luminosity function of high redshift galaxies and their contribution to the cosmic reionization
Zhen-Yi Cai, Andrea Lapi, Alessandro Bressan +3
[Abridged] We present a physical model for the evolution of the ultraviolet (UV) luminosity function (LF) of high-z galaxies taking into account in a self-consistent way their chem…