Multiwavelength analysis of the Lyman-<i>α</i>emitting galaxy Haro 2: relation between the diffuse Lyman-<i>α</i>and soft X-ray emissions

Abstract

Context. Lyman-α emission is commonly used as star formation tracer in cosmological studies. Nevertheless, resonant scattering strongly affects the resulting luminosity, leading to variable and unpredictable escape fractions in different objects.