Supernova remnants are prominent candidates for the acceleration of the Galactic cosmic rays. SNRs are well-known sources of thermal X-ray emission originated from the shock-heated gas and non-thermal (synchrotron) emission caused by very high-energy electrons moving in the magnetic fields. Non-thermal X-ray synchrotron emission provides important information about particle acceleration properties, magnetic field strengths and turbulence near SNR shock fronts. From the observational point of view, SNRs are difficult objects to study in X-ray band due to their large extent on the sky. Thanks to the optimized for X-ray surveys optical design of eRosita and ART-XC telescopes onboard SRG observatory, the X-ray imaging of the extended objects like SNRs is greatly improved in soft (0.3-10 keV, eRosita) and hard (4-30 keV, ART-XC) X-ray bands. First ART-XC performance verification (PV) observation of bright SNR RX J1713.7−3946 and regular slew across SNR Cassiopeia A during the on-going survey, revealed an impressive potential of SRG for studying SNRs. In this talk I will demonstrate imaging capabilities of the ART-XC for extended objects and present first results of observations of the SNRs with ART-XC telescope.
|Presenter status||ART-XC consortium member|