Globular and Open Clusters Overview

The video tutorial explains the nature and characteristics of fabula clusters, which are large spherical collections of stars orbiting a common center. It discusses the formation and evolution of these clusters, highlighting their early formation in the galaxy and the presence of both old and newer stars. The video also covers open clusters, which are looser collections of stars, and their potential evolution into globular clusters. Finally, it explores the role of black holes in globular clusters, including recent discoveries of multiple black holes within them.

What is the shape of a Fabula cluster?

• A flat disk

• A large sphere

• A spiral

• A cube

What is the common center around which stars in a Fabula cluster orbit?

• A black hole

• A common center

• A massive star

• A nebula

Which of the following is a famous example of a globular cluster?

• Orion

• Pleiades

• Messier 13

• Andromeda

What is the significance of Omega Centauri?

• It is a black hole

• It is a prototypical globular cluster

• It is a type of galaxy

• It is a newly formed star

How old are most stars in globular clusters?

• 10-12 billion years

• 3-5 billion years

• 20-25 billion years

• 1-2 billion years

What is an open cluster?

• A cluster with no stars

• A single massive star

• A loose collection of stars

• A tightly packed group of stars

What is the potential future of an open cluster?

• It will disperse into space

• It will evolve into a globular cluster

• It will become a black hole

• It will become a galaxy

What role do black holes play in globular clusters?

• They destroy the cluster

• They provide light to the cluster

• They have no role

• They help hold the cluster together

What did Hubble discover in the globular cluster NGC 6397?

• A new galaxy

• A single massive star

• A supernova

• Multiple black holes

How do multiple black holes in a cluster function?

• They remain stationary

• They orbit each other at high speeds

• They repel each other

• They merge into one