Intermediate-mass black hole

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/intermediate-mass-black-hole

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 Intermediate-mass black hole?Estimated between 100 and 100,000 solar masses
2. What is the primary formation hypotheses?Runaway stellar collisions in globular clusters; accretion of dwarf galaxies
3. What is the observational signatures?High stellar velocities in galactic nuclei; ultraluminous X-ray sources (ULXs)
4. How do scientists think intermediate-mass black holes form?They may form when many stars in a crowded cluster collide and merge into one huge star that collapses, or when small galaxies with their own black holes merge into bigger ones.
5. Why are intermediate-mass black holes important?They could show how the very big black holes in galaxy centers grew, and they help shape the motion of stars in star clusters and small galaxies.

Accretion: The process by which matter falls onto a celestial object due to gravity.
Tidal Disruption Event: The destruction of a star or other celestial body by a supermassive black hole's tidal forces.
Ultraluminous X-ray Source (ULX): An X-ray source in an external galaxy that is more luminous than any known stellar-mass black hole X-ray binary.