Pair-instability supernova

High school (ages 12+)
Space & Astronomy

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Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/pair-instability-supernova

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. How heavy is Pair-instability supernova?Approximately 130-250 M☉ (solar masses)
2. What is the explosion energy?Typically exceeds 10^52 ergs, making them the most energetic stellar explosions
3. What is a pair‑instability supernova?It is a gigantic explosion that blows a very massive star apart, leaving no compact remnant behind.
4. Why do very massive stars explode as pair‑instability supernovae?When the core gets extremely hot, gamma rays turn into electron‑positron pairs, which removes pressure and lets the core collapse and explode.

Pair Production: The spontaneous creation of a particle-antiparticle pair from high-energy photons, absorbing energy.
Solar Mass (M☉): A unit of mass equal to the mass of the Sun, used to compare the masses of stars and celestial objects.
Nucleosynthesis: The process by which new atomic nuclei are created from pre-existing nucleons and nuclei, occurring in stars and supernovae.
Chemical Enrichment: The process by which the abundance of heavy elements in the interstellar medium increases over time due to stellar evolution and supernovae.