SN 1998bw

High school (ages 12+)
Space & Astronomy

Name:

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/sn-1998bw

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. What is the progenitor star type?Massive Wolf-Rayet star, likely stripped of outer layers
2. What is the supernova classification?Type Ic-BL (broad-lined), indicative of a hypernova
3. Why is SN 1998bw called a hypernova?It released far more energy than a normal supernova and had very fast-moving material, making it extremely bright.
4. How did SN 1998bw help scientists learn about gamma‑ray bursts?The supernova happened right after a gamma‑ray burst, showing that the two events can come from the same exploding star.

Hypernova: An extremely energetic supernova explosion, often associated with the formation of a black hole.
Collapsar Model: A theory explaining GRBs as resulting from the collapse of a massive star's core into a black hole.
Nucleosynthesis: The process by which new atomic nuclei are created in stars and supernovae.
Relativistic Jet: A highly energetic, narrow beam of particles traveling at speeds close to the speed of light.