Probing the Statistics of the Temperature-Density Relation of the IGM
Abstract
Gravitational instability induces a simple correlation between the large and small scale fluctuations of the Ly-alpha flux spectrum. However, non-gravitational processes involved in structure formation and evolution will alter such a correlation. In this paper we explore how scatter in the temperature-density relation of the IGM reduces the gravitationally induced scale-scale correlation. Since observations of the correlation are close to that predicted by pure gravity, this puts constraints on the scatter in the temperature-density relation and in turn on any physical process which would lead to scatter, e.g., strong fluctuations in the UV background or radiative transfer effects.Keywords
All Related Versions
This publication has 0 references indexed in Scilit: