VLA observations at 6 cm and Lick Observatory optical plates of R Aquarii indicate the existence of a jetlike feature extending 7" -10" from the central star. A wide field map at 6 cm shows an unresolved compact radio source which lies close to the axis defined by the jet at a distance of ~ 3' from R Aqr. Episodic mass transfer in this symbiotic variable could explain the erratic outbursts that R Aqr is known to undergo. Formation of an accretion disk and the accompanying radio-optical jet may characterize the observed outbursts in this system.
Sopka, R.J., Herbig, G., Kafatos, M., Michalitsianos, A.G. (1982) Radio and Optical Observations of the R Aquarii Jet, The Astrophysical Journal, 258: L35-L39. doi: 10.1086/183825
This article was originally published in Astrophysical Journal, volume 258, in 1982. DOI: 10.1086/183825