This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why are the halo stars distributed spherically instead of throughout the disk? What will be an ... (Read 12 times)

clmills979

  • Hero Member
  • *****
  • Posts: 551
on: Jul 27, 2018
Why are the halo stars distributed spherically instead of throughout the disk?
 
  What will be an ideal response?

Question 2

Galaxies in all directions appear to be redshifted, as if rushing away from us in the center of the universe. How does the cosmological principle handle this problem?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jessofishing

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 27, 2018
Answer to Question 1

They formed early, while the protogalaxy was spinning slowly and was roughly spherical. Over time, rotation flattened most of the material into a disk and formed the Population I stars later.

Answer to Question 2

It is not just us, but everyone, everywhere who witnesses the same cosmological redshift, as all space and time expand in the Big Bang. Since space itself is expanding, there is no preferred direction and no center to the universe.


clmills979

  • Member
  • Posts: 551
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

alexanderhamilton

  • Member
  • Posts: 334
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Hertzsprung-Russell diagram for a set of stars that includes the Sun Hertzsprung-Russell diagram for a set of stars that includes the Sun
The two bright stars are (left) Alpha Centauri and (right) Beta Centauri. The two bright stars are (left) Alpha Centauri and (right) Beta Centauri.
Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
Classifying the Spectra of Stars Classifying the Spectra of Stars
Stars and the Interstellar Medium Stars and the Interstellar Medium
First-pass effect: (a) drugs are absorbed; (b) drugs enter hepatic portal circulation and go directl First-pass effect: (a) drugs are absorbed; (b) drugs enter hepatic portal circulation and go directl
Video: Interspecific Competition Relationship - Competitive & Niche Differentiation

For a complete list of videos, visit our video library