A 70 pc Diameter Nova Superremnant Surrounding the Recurrent Nova RS Ophiuchi
Authors: Michael M. Shara, Kenneth M. Lanzetta, Alexandra Masegian, James T. Garland, Stefan Gromoll, Alexei Kniazev, Lee Townsend, David Zurek, Joanna Mikolajewska, David Valls-Gabaud, Frederick M. Walter, John K. Webb
Michael M. Shara et al
2025 The Astronomical Journal170.
Provider: AAS Journals
Caption: Figure 8.
Top: same as Figure 7, but the spectrum is sky-subtracted. Bottom: a close-up of the sky-subtracted region around Hα in Figure 8(a). The black, gray, and purple pixels are, respectively, at least 200, 20, and 2 counts above background.