155 citations · 205 across the 3 of their papers we have counts for
8 papers
The 21-cm signature of the first stars during the Lyman-Werner feedback era
Anastasia Fialkov, Rennan Barkana, Eli Visbal +2
The formation of the first stars is an exciting frontier area in astronomy. Early redshifts z ~ 20 have become observationally promising as a result of a recently recognized effect…
Excitation and charge transfer in hydrogen-proton collisions at 5--80 keV and application to astrophysical shocks
Dmitriy Tseliakhovich, Christopher M. Hirata, Kevin Heng
In astrophysical regimes where the collisional excitation of hydrogen atoms is relevant, the cross sections for the interactions of hydrogen atoms with electrons and protons are ne…
The signature of the first stars in atomic hydrogen at redshift 20
Eli Visbal, Rennan Barkana, Anastasia Fialkov +2
Dark and baryonic matter moved at different velocities in the early Universe, which strongly suppressed star formation in some regions. This was estimated to imprint a large-scale…
Impact of the Relative Motion between the Dark Matter and Baryons on the First Stars
Anastasia Fialkov, Rennan Barkana, Dmitriy Tseliakhovich +1
Recently the initial supersonic relative velocity between the dark matter and baryons was shown to have an important effect on galaxy formation at high redshift. We study the impac…
Suppression and Spatial Variation of Early Galaxies and Minihalos
Dmitriy Tseliakhovich, Rennan Barkana, Christopher Hirata
We study the effect of the relative velocity of dark matter and baryonic fluids after the epoch of recombination on the evolution of the first bound objects in the early universe.…
Relative velocity of dark matter and baryonic fluids and the formation of the first structures
Dmitriy Tseliakhovich, Christopher Hirata
At the time of recombination, baryons and photons decoupled and the sound speed in the baryonic fluid dropped from relativistic to the thermal velocities of the hydrogen atoms. Thi…