The growth of galaxies in the local Universe critically depends on the physical conditions of the hot phase of the interstellar and the circumgalactic medium and on its interplay (via outflows and re-condensation) with the other phases.
The X-ray data from the eROSITA all sky survey are allowing us to get an unprecedented view of the hot plasma, within the Galactic echo-system.
In...
The solar neighbourhood is a volume devoid of neutral material. Instead, it is displaced by a soft X-ray-emitting plasma. This region is known as the local hot bubble (LHB). A holistic view of this emission requires a large covering area, first delivered by the ROSAT All Sky Survey about three decades ago. The properties of the LHB were measured but were unfortunately clouded by the discovery...
In X-ray observations, scattering of photons on dust along the line of sight can lead to the formation of an extended X-ray halo around any source. We have used data from eROSITA to study these dust scattering halos around 29 point sources in eRASS 1.
For bright sources, which are needed to observe halos at the high scattering angles made accessible by eROSITA, pile-up limits our abilities...
The Large Magellanic Cloud (LMC) is a large and nearby satellite galaxy of the Milky Way, which underwent multiple recent star formation episodes. Due to its low inclination and foreground absorption, the properties of the hot phase of its interstellar medium (ISM) can be ideally probed via its diffuse soft X-ray emission. This, in combination with deep available exposure due to the location...
