Saiyang Zhang
Saiyang Zhang
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How do Primordial Black Holes change the Halo Mass Function and Structure?
We use cosmological simulations to study the effects of primordial black holes (PBHs) on the halo mass function and structure formation.
Saiyang Zhang (张赛旸)
,
Volker Bromm
,
Boyuan Liu
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DOI
Detectability of Supermassive Dark Stars with the Roman Space Telescope
We examine the capability of Roman Space Telescopes in finding the super massive dark matter powered stars. Through image morphology, lensing and specific emission lines, we could separate those dark stars from first generation galaxies.
Saiyang Zhang (张赛旸)
,
Cosmin Ilie
,
Katherine Freese
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DOI
Distinguishing the impact and signature of black holes from different origins in early cosmic history
We model the accretion on the primordial black hole (PBH) and find it contribute significantly to the cosmic radiation background during the epoch of reionization.
Saiyang Zhang (张赛旸)
,
Volker Bromm
,
Boyuan Liu
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DOI
Effects of stellar-mass primordial black holes on first star formation
We use cosmological hydrodynamic zoom-in simulations and semi-analytical models to study the effects of primordial black holes (PBHs) on first star formation.
Boyuan Liu
,
Saiyang Zhang (张赛旸)
,
Volker Bromm
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DOI
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