Lenticular galaxy

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/lenticular-galaxy

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 morphological classification?Designated S0, representing a transitional type between elliptical (E) and spiral galaxies
2. What is the evolutionary state?Considered passively evolving early-type galaxies, having largely completed their major star-forming phase
3. Why do lenticular galaxies not form many new stars?They have used up or lost the gas and dust that are needed for new stars to grow. Without this material, star formation slows down a lot.
4. How can a spiral galaxy become a lenticular galaxy?When a galaxy moves quickly through hot gas in a cluster, its gas can be stripped away. Mergers, tidal pulls from nearby galaxies, or energy from a central black hole can also remove gas and erase spiral arms.

Galactic Morphology: The classification of galaxies based on their visual appearance and structure.
Galactic Quenching: The process by which a galaxy's star formation activity is significantly reduced or completely halted.
Interstellar Gas and Dust: The material between stars, essential for the formation of new stars and planetary systems.
AGN Feedback: The influence of active galactic nuclei (supermassive black holes) on their host galaxy's evolution.