This topic contains a solution. Click here to go to the answer

Author Question: _________________ galaxies are very luminous at X-ray and ultraviolet wavelengths and have broad ... (Read 32 times)

scienceeasy

  • Hero Member
  • *****
  • Posts: 565
_________________ galaxies are very luminous at X-ray and ultraviolet wavelengths and have broad emission lines in their spectra.
 
  Fill in the blank(s) with correct word

Question 2

Star clusters are important to our study of the lives of high-mass versus low-mass stars because
 
  a. stars in each cluster all formed at about the same time all with the same mass.
  b. the Sun was once a member of a globular cluster.
  c. stars in each cluster all formed at about the same time but with differing masses.
  d. stars in each cluster all formed at different times with differing masses.
  e. All of the other choices are correct.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

peilian

  • Sr. Member
  • ****
  • Posts: 316
Answer to Question 1

Seyfert

Answer to Question 2

c




scienceeasy

  • Member
  • Posts: 565
Reply 2 on: Jul 27, 2018
Excellent


TheDev123

  • Member
  • Posts: 332
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Your heart beats over 36 million times a year.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

For a complete list of videos, visit our video library