Galaxy Formation and Mergers

Question 1

Our universe represented in a box as it expends through time

Answer 1

The Cosmic Web

Question 2

Build up of regions with locally higher densities in the cosmic web are caused by what

Answer 2

The gravity of Dark Matter

Question 3

concentrated spots of gravity in the cosmic web began pulling in what?

Answer 3

ordinary matter - gas

Question 4

Dark matter warps space and forms a pit; gas falls in this pit

Answer 4

Step 1 of galaxy formation

Question 5

Ordinary matter; Baryons

Answer 5

protons, neutrons, and nuclei

Question 6

gas cools inside well, releasing its pressure and succumbing to gravity

Answer 6

Step 2 of galaxy formation

Question 7

The gas fells into the well and leaves long streams called ?

Answer 7

Filaments

Question 8

stars and galaxies form at the ?

Answer 8

intersections of filaments

Question 9

Why do stars and galaxies form at the intersections of filaments?

Answer 9

the intersection is where density is the highest

Question 10

mergers with other galaxies

Answer 10

example of how a Large galaxies grows

Question 11

accretion of smaller galaxies

Answer 11

example of how a Large galaxies grows

Question 12

inflows of gas

Answer 12

example of how a Large galaxies grows

Question 13

example of how a Large galaxies grows

Answer 13

mergers with other galaxies, accretion of smaller galaxies, and inflows of gas