Accretion disc atmospheres and winds in low-mass X-ray binaries

TL;DR

This review summarizes recent observational and theoretical advances in understanding accretion disc atmospheres and winds in low-mass X-ray binaries, highlighting wind launching mechanisms and their dependence on accretion states.

Contribution

It provides a comprehensive overview of current knowledge, emphasizing the connection between accretion processes and wind phenomena in low-mass X-ray binaries.

Findings

Identification of key wind launching mechanisms

Correlation between accretion states and wind properties

Current challenges in modeling accretion disc atmospheres

Abstract

In the last decade, X-ray spectroscopy has enabled a wealth of discoveries of photoionised absorbers in X-ray binaries. Studies of such accretion disc atmospheres and winds are of fundamental importance to understand accretion processes and possible feedback mechanisms to the environment. In this work, we review the current observational state and theoretical understanding of accretion disc atmospheres and winds in low-mass X-ray binaries, focusing on the wind launching mechanisms and on the dependence on accretion state. We conclude with issues that deserve particular attention.