What approximate initial expansion rate was measured for the supernova shockwave creating the Veil Nebula?
Answer
1,000 kilometers per second (km/s)
The immediate aftermath of the core-collapse supernova involved the star's outer layers being violently ejected into the interstellar medium (ISM) via a powerful shockwave. Measurements characterizing this initial physical outburst often cite a speed of approximately 1,000 kilometers per second. This phenomenal velocity means the expanding gas bubble traveled at millions of miles per hour. It is this high-speed collision with the pre-existing, diffuse gas that compresses and heats the material, causing it to eventually glow in visible light after initially radiating intensely in X-rays as the shock front propagates outward.
Related Questions
What was the estimated minimum mass of the progenitor star that created the Veil Nebula?In which constellation is the sprawling Veil Nebula structure visible to observers?What was the initial age estimate, based on optical observations, for the event that created the Veil Nebula?What approximate initial expansion rate was measured for the supernova shockwave creating the Veil Nebula?Which component of the Veil Nebula, designated NGC 6960, is noted for its 'Witch's Broom' appearance?What catastrophic event is the primary cause of the Veil Nebula structure, described as a supernova remnant?Observations confirmed the presence of which three highly ionized elements in the Veil Nebula's spectral signature?Which specific age estimate, derived from X-ray profile analysis, suggests the Veil Nebula event is slightly younger than optical estimates?What specialized filters are required to bring out the fine detail of the Veil Nebula's filaments against the dark sky?The glowing filaments of the Veil Nebula are composed of the original star's matter mixed with what other material energized by the shockwave?