Speaker
Description
Winds from accretion discs around compact objects, both in X-ray binaries and Active Galactic Nuclei, have been extensively studied in the past two decades with X-ray spectroscopy. However, to date, the launching mechanism of these winds remains a highly controversial topic. A distinct advantage of studying these winds in high inclination, dipping, neutron star X-ray binaries is that highly ionised plasmas are detected in a vast majority of cases and that the orbital periods and ephemeris of the systems are well known, thus enabling to precisely test the predictions of different models for sources with a range of sizes.
While observations previous to XRISM have already provided a relatively good characterisation of the plasmas, the exquisite spectral resolution of XRISM/Resolve has now allowed to precisely detect low velocity outflows and to resolve the width of the spectral lines in the outflows, thus disentangling different velocity components.
In this talk I will review how XRISM observations have already advanced our knowledge of accretion processes and in particular winds in neutron star X-ray binaries and I will give an outlook on the prospects of future observations.
| Affiliation | ESO |
|---|---|
| mdiaztri@eso.org |
