Second Epoch Hubble Space Telescope Observations of Kepler's Supernova Remnant: The Proper Motions of Balmer FilamentsDOI: info:10.3847/0004-637X/817/1/36v. 81736
Sankrit, Ravi, Raymond, John C., Blair, William P., Long, Knox S., Williams, Brian J., Borkowski, Kazimierz J., Patnaude, Daniel J., and Reynolds, Stephen P. 2016. "Second Epoch Hubble Space Telescope Observations of Kepler's Supernova Remnant: The Proper Motions of Balmer Filaments." The Astrophysical Journal, 817 36. https://doi.org/10.3847/0004-637X/817/1/36.