The impact of periastron passage on the X-ray and optical properties of the Symbiotic System R Aquarii

D. A. Vásquez-Torres, J. A. Toalá, A. Sacchi +4

Multi-epoch Chandra and XMM-Newton observations of the symbiotic system R Aquarii (R Aqr) spanning 22 yr are analysed by means of a reflection model produced by an accretion disc.…