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Detecting the First Objects in the Mid-IR with NGST
Benedetta Ciardi, Andrea Ferrara
We calculate the expected Mid-IR molecular hydrogen line emission from the first objects in the universe. Due to their low masses, the stellar feedback from massive stars is able t…
Cosmological Reionization Around the First Stars: Monte Carlo Radiative Transfer
B. Ciardi, A. Ferrara, S. Marri +1
We study the evolution of ionization fronts around the first proto-galaxies by using high resolution numerical cosmological (Lambda+CDM model) simulations and Monte Carlo radiative…
Expected Number and Flux Distribution of Gamma-Ray-Burst Afterglows with High Redshifts
Benedetta Ciardi, Abraham Loeb
If Gamma-Ray-Bursts (GRBs) occur at high redshifts, then their bright afterglow emission can be used to probe the ionization and metal enrichment histories of the intervening inter…
Feedback Processes in the Early Universe
A. Ferrara, B. Ciardi, S. Marri +1
Feedback effects due to massive stars and supernovae in the first objects are shown to strongly regulate both galaxy formation/evolution and the reionization process. Here we revie…