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

Author Question: Compare and contrast the properties of disk and halo stars. What will be an ideal ... (Read 61 times)

Diane

  • Hero Member
  • *****
  • Posts: 576
on: Jul 27, 2018
Compare and contrast the properties of disk and halo stars.
 
  What will be an ideal response?

Question 2

___________ associations and ___________ associations are groups of stars born together but not gravitationally bound to one another.
 
  Fill in the blank(s) with correct word


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jjorrostieta

  • Sr. Member
  • ****
  • Posts: 298
Reply #1 on: Jul 27, 2018
Answer to Question 1

Most of the stars in the disk are middle- to lower-main-sequence stars like the Sun, a few are red giants and white dwarfs, and fewer still are brilliant blue O and B stars. Those hot, massive stars are rare, but they are so luminous that they provide much of the light from the disk. Halo stars are old, cool, lower-main-sequence stars, red giants, and white dwarfs.

Answer to Question 2

T, OB
OB, T


Diane

  • Hero Member
  • *****
  • Posts: 576
Reply #2 on: Jul 27, 2018
TY


jjorrostieta

  • Sr. Member
  • ****
  • Posts: 298
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

The Pleiades, an open cluster of stars in the constellation of Taurus. The Pleiades, an open cluster of stars in the constellation of Taurus.
Rising and Setting of Stars at the Equator Rising and Setting of Stars at the Equator
Formation of an Accretion Disk Formation of an Accretion Disk
Accretion Disk Around a Supermassive Black Hole Accretion Disk Around a Supermassive Black Hole
Neural Basis of Enhancement of Contrast Neural Basis of Enhancement of Contrast
Properties of Ammonia Properties of Ammonia
Video: Neuron Structure Animation

For a complete list of videos, visit our video library