eROSITA (extended ROentgen Survey with an Imaging Telescope Array) is the core instrument on the Russian Spektrum-Roentgen-Gamma (SRG) mission, which was successfully launched from Baikonur on July 13th, 2019. Till today, eROSITA has performed four and a half all-sky surveys, mapping the whole X-ray sky with an XMM-Newton-type sensitivity. In the 0.2-2.4 keV band, it is about 30 times more sensitive than ROSAT, while in the 2.0-8.0 keV band, it provides the first ever true imaging survey of the sky. Its design-driving science is the detection of large samples of galaxy clusters to redshifts z > 1 to study the large-scale structure in the Universe and to test cosmological models, including Dark Energy. Although considered to be “secondary science”, the currently available data provide a world of exciting new results also for galactic sources, including Neutron Stars and Pulsars, X-ray binaries, active stars, and diffuse galactic emission from, e.g., star clusters and supernova remnants. In my talk, I will report on the status of the eROSITA mission and its scientific prospects, with the main focus on selected supernova remnants and compact objects.
Contact local : Jean BALLET
Organisateur : Leïla GODINAUD
DAp