3 papers
astro-ph.SR2025
Discovery of Faint Nebulosity Around a Z Camelopardalis-type Cataclysmic Variable in Antlia: Nova Shell or Ancient Planetary Nebula?
Howard E. Bond, Dana Patchick, Daniel Stern +2
We report our discovery of a faint nebula surrounding a previously little-studied 15th-mag variable star, ASASSN-19ds, in the southern-hemisphere constellation Antlia. Spectra veri…
astro-ph.SR2025
Two More Bow Shocks and Off-Center Halpha Nebulae Associated with Nova-like Cataclysmic Variables
Howard E. Bond, Calvin Carter, Eric Coles +4
We report discoveries of bow-shock nebulae, seen in Halpha and [O III] 5007, around two cataclysmic variables (CVs): LS Pegasi and ASASSN-V J205457.73+515731.9 (hereafter ASASJ2054…
astro-ph.SR2024
Discovery of a Bow-Shock Nebula around the Z Cam-type Cataclysmic Variable SY Cancri
Howard E. Bond, Calvin Carter, David F. Elmore +3
We report the serendipitous discovery of a bow-shock nebula around the cataclysmic variable (CV) SY Cancri. In addition, SY Cnc lies near the edge of a faint Halpha-emitting nebula…