Author Question: Why is light variability a critical issue with the sizes of active nuclei? What will be an ideal ... (Read 49 times)

bobypop

  • Hero Member
  • *****
  • Posts: 539
Why is light variability a critical issue with the sizes of active nuclei?
 
  What will be an ideal response?

Question 2

The signature of a planet is largest in transit measurements when the planet and star are lined up along the line of sight to the telescope.
 
  Indicate whether the statement is true or false



rnehls

  • Sr. Member
  • ****
  • Posts: 313
Answer to Question 1

The source of the light cannot be any larger than the time it takes light to cross it and change in brightness, so if the quasar varies in a matter of months, then its light emitting region cannot be more than a few light months wide.

Answer to Question 2

TRUE



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

For a complete list of videos, visit our video library