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

Author Question: How does the interstellar gas change the light of stars passing through it, even if no dust is also ... (Read 115 times)

tnt_battle

  • Hero Member
  • *****
  • Posts: 556
on: Jul 27, 2018
How does the interstellar gas change the light of stars passing through it, even if no dust is also present?
 
  What will be an ideal response?

Question 2

Why are emission nebulae ideal places to go hunting for brown dwarfs?
 
  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

kjo;oj

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 27, 2018
Answer to Question 1

Even the cool, thin atoms of gas will absorb some wavelengths of light, and these absorption lines will be very sharp, compared to the lines from the denser star's photosphere. So we can find the composition of the cool gases with these lines, and from their Doppler shifts, the motions of the gas clouds as well.

Answer to Question 2

These stellar nurseries give birth to a wide range of bodies of different masses, and those of less than 0.08 solar masses will heat up and glow red by gravitational contraction, but never get up to 10 million degrees to reach stage 7 and shine stably on the main sequence. In the Orion Nebula, several such submissive objects are noted.


tnt_battle

  • Member
  • Posts: 556
Reply 2 on: Jul 27, 2018
:D TYSM

yeungji

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

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?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Breathe Carolina & Shanahan ft. Haliene - Stars & Moon Breathe Carolina & Shanahan ft. Haliene - Stars & Moon
Use full palms to apply light sliding strokes from foot to hip. This connects and finishes massage ... Use full palms to apply light sliding strokes from foot to hip. This connects and finishes massage ...
Apply compression and light effleurage techniques to the foot and ankle to warm the area. Apply compression and light effleurage techniques to the foot and ankle to warm the area.
Hormonal change during ovulation and urinear cycles Hormonal change during ovulation and urinear cycles
Epigenetic changes to DNA, such as methylation, change patterns of gene expression by activating or Epigenetic changes to DNA, such as methylation, change patterns of gene expression by activating or
Suppose the market supply curve is p = 5Q. If price increases from 10 to 15, the change in ... Suppose the market supply curve is p = 5Q. If price increases from 10 to 15, the change in ...
Video: Hypoglycemia Animation

For a complete list of videos, visit our video library