Image credit: David A. Hardy/www.astroart.org & PPARC.
RS Ophiuchi (RS Oph) is a symbiotic recurrent nova that went into outburst on February 12, 2006 (see the Astronomy Picture of the Day). We observed this eruption with the Rossi X-Ray Timing Explorer satellite, and our results were recently published in a paper in the journal Nature (Sokoloski et al. 2006, Nature, 442, 276).
We also imaged the ejecta from RS Oph in the radio (see image to the right; Rupen et al. 2008; Sokoloski et al. 2008).