« previous next »

Author Question: Discuss the relationship between young stars, the interstellar medium and nebulae. What will be ... (Read 16 times)

jeatrice

  • Hero Member
  • *****
  • Posts: 543
on: Jul 27, 2018
Discuss the relationship between young stars, the interstellar medium and nebulae.
 
  What will be an ideal response?

Question 2

What is the evidence that gamma-ray bursts originate from beyond the Milky Way Galaxy?
 
  What will be an ideal response?


brittanywood

  • Sr. Member
  • ****
  • Posts: 355
Reply #1 on: Jul 27, 2018
Answer to Question 1

Young stars give off ultraviolet radiation, heating the surrounding gas cloud and causing it to glow as an emission nebula. Solar wind from the young stars pushes on the nebula, which can sweep away the gas, but can also cause compression leading to more new star formation.

Answer to Question 2

The distribution of gamma-ray bursts is distributed uniformly on the sky, unlike the distribution of X-ray binaries, neutron stars, and other objects within the Galaxy. Further, the afterglow of some gamma-ray bursts have now been detected and detailed observations at other wavelengths show that they are located at the position (and redshift) of distant galaxies.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

The Mandarin Duck (Aix galericulata), or just Mandarin, is a medium-sized perching duck, closely rel The Mandarin Duck (Aix galericulata), or just Mandarin, is a medium-sized perching duck, closely rel
Interstellar Reddening Interstellar Reddening
The overlapping relationship among research, evidence-based practice The overlapping relationship among research, evidence-based practice
Thyroid hormone production—Relationship between pituitary and thyroid glands. Thyroid hormone ... Thyroid hormone production—Relationship between pituitary and thyroid glands. Thyroid hormone ...
Red Bull uses strategies that help it target college-aged, young-adult consumers Red Bull uses strategies that help it target college-aged, young-adult consumers
The Dose-Effect Relationship, Showing (A) Drug Potency and (B) Drug Efficacy (Or Effectiveness) The Dose-Effect Relationship, Showing (A) Drug Potency and (B) Drug Efficacy (Or Effectiveness)
Video: Structures that affect circulation - kidneys and blood volume and skeletal muscle pumping

For a complete list of videos, visit our video library