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

Author Question: What do the orbits of halo and disk stars tell us about the formation of the Milky Way? What will ... (Read 69 times)

tsand2

  • Hero Member
  • *****
  • Posts: 520
on: Jul 27, 2018
What do the orbits of halo and disk stars tell us about the formation of the Milky Way?
 
  What will be an ideal response?

Question 2

Scientific models are used to
 
  A) present the scale of the solar system to the general public.
  B) make specific predictions that can be tested through observations or experiments.
  C) make miniature representations of the universe.
  D) prove that past paradigms no longer hold true.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

scikid

  • Sr. Member
  • ****
  • Posts: 300
Reply #1 on: Jul 27, 2018
Answer to Question 1

Older halo stars move in comet-like orbits, well above the plane of the Galaxy in a spherical distribution. The disk stars formed later, after most of the remaining gas and dust had settled down into a disk, flattened by the rotation of the condensing Galaxy. Their orbits are much more like those of planets, fairly circular and in the Galactic plane.

Answer to Question 2

B


tsand2

  • Member
  • Posts: 520
Reply 2 on: Jul 27, 2018
Gracias!

Chelseyj.hasty

  • Member
  • Posts: 319
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Formation of germ layers. Formation of germ layers.
Illustration of the Milky Way galaxy, showing the location of the Sun Illustration of the Milky Way galaxy, showing the location of the Sun
A Circumstellar Disk of Matter A Circumstellar Disk of Matter
Formation of the Himalayas Formation of the Himalayas
Formation of a peptide bond between two amino acids Formation of a peptide bond between two amino acids
Long bone formation Long bone formation
Video: Conduction of action potentials

For a complete list of videos, visit our video library