Discuss the evidence that supports the theory that there is a ...

[Alainaaa8]

Discuss the evidence that supports the theory that there is a supermassive black hole at the center of our galaxy.
 
  What will be an ideal response?

Question 2

Red light of the visible light spectrum has longer wavelengths than blue.
 
  a. True
  b. False
  Indicate whether the statement is true or false

[meganlapinski]

Answer to Question 1

There is an intense source of radio energy named Sagittarius A at the gravitational center of the galaxy. The source has been shown to be very smallless than 1 AU in size. The source is also associated with X-Ray and infrared radiation. The connection between massive energy output and very small size is explained best by a black hole.
Stars near Sgr A are observed to be orbiting the object at very high speeds. Using the orbital paths of these stars, the object must have a mass of approximately 4 million solar masses. This much mass could only exist in such a small volume of space as a black hole.

Answer to Question 2

True

[Alainaaa8]

Excellent

[duy1981999]

Gracias!