134 citations · 289 across the 8 of their papers we have counts for
4 papers · 1 filter
Can ambipolar diffusion solve the cosmic lithium problem?
Leonid Chuzhoy
Recent WMAP observations indicate that the primordial abundance of lithium should have been 2-4 times higher than the value measured in low-metallicity stars. We show that this dis…
The structure of dark matter halos: self-similar models versus N-body simulations
Leonid Chuzhoy
We derive the density profile of cold dark matter halos using a self-similar accretion model. We show that if the clumpiness of the infalling matter is taken into account, then the…
Heating and cooling of the intergalactic medium by resonance photons
Leonid Chuzhoy, Paul R. Shapiro
During the epoch of reionization a large number of photons were produced with frequencies below the hydrogen Lyman limit. After redshifting into the closest resonance, these photon…
Helium preenrichment in the star-forming regions
Leonid Chuzhoy
We show that element diffusion can produce large fluctuations in the initial helium abundance of the star-forming clouds. Diffusion time-scale, which in stars is much larger than t…