This topic contains a solution. Click here to go to the answer

Author Question: Of what is the galactic halo composed? What will be an ideal ... (Read 30 times)

mydiamond

  • Hero Member
  • *****
  • Posts: 804
Of what is the galactic halo composed?
 
  What will be an ideal response?

Question 2

The density of interstellar dust is very low, yet it still blocks starlight because
 
  A) there is 100 times more opaque gas than dust present in the interstellar medium.
  B) it is so cold it absorbs higher energy photons.
  C) the dust particles are about the same size as the light waves they absorb.
  D) the dust particles are irregular in shape.
  E) ice particles reflect all light back toward their stars, not toward us.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nital

  • Sr. Member
  • ****
  • Posts: 320
Answer to Question 1

The globular clusters are most obvious component, but the halo also has many loose stars of Population II, escaped from their clusters, and a great deal of dark matter, whose true nature is still uncertain.

Answer to Question 2

C




mydiamond

  • Member
  • Posts: 804
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)


LegendaryAnswers

  • Member
  • Posts: 341
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

For a complete list of videos, visit our video library