further spectral evolution

Forums Variable Stars Nova Vul 2021 further spectral evolution

Robin Leadbeater

The H alpha emission line has weakened further and is now showing a P Cygni profile (velocity ~600km/s). The rest of the spectrum now resembles that of a G/K star photosphere but with some additional absorption lines, particularly in the red at ~7106/7766 A  (The other features in that area are Tellurics)