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

Author Question: Why does a star's luminosity drop so much during the Hayashi track? What will be an ideal ... (Read 32 times)

amal

  • Hero Member
  • *****
  • Posts: 572
on: Jul 27, 2018
Why does a star's luminosity drop so much during the Hayashi track?
 
  What will be an ideal response?

Question 2

What are the main constituents of the solar wind?
 
  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

adammoses97

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 27, 2018
Answer to Question 1

The surface of the star maintains a fairly constant temperature but the size continues to shrink significantly. Since the luminosity depends on the square of the radius, as the radius decreases by a factor of 100, the luminosity drops by a factor of 10,000. The slight increase in surface temperature changes the luminosity only a little.

Answer to Question 2

Protons and electrons are the main constituents of the solar wind.


amal

  • Member
  • Posts: 572
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

T4T

  • Member
  • Posts: 348
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Body plan of an echinoderm, as represented by a sea star. Body plan of an echinoderm, as represented by a sea star.
The Period-Luminosity Relation The Period-Luminosity Relation
Mass Loss by a Supermassive Star Mass Loss by a Supermassive Star
Doty's data show a very rapid drop in late adulthood in the ability to identify smells Doty's data show a very rapid drop in late adulthood in the ability to identify smells
A racing car accelerates uniformly from rest along a straight track. This track has markers ... A racing car accelerates uniformly from rest along a straight track. This track has markers ...
Video: Major Elements in Biological Molecules: Lipids

For a complete list of videos, visit our video library