Homework 09

Please answer at least 4 of the following 5 questions correctly for full credit:

Question 1

Which two quantities do we try to estimate in our effort to identify Black Hole candidates?

Question 2

Which constant of nature relates the time duration of spikes in emitted radiation to the size of the emitting object or region?

Question 3

What is the numerical value of the escape velocity at the Event Horizon as measured in kilometers per second? (Value rounded to within 1 percent is okay.)

Question 4

Which class of variable stars has a luminosity that is almost independent of the period of an individual star's variability?

Question 5

How are the Globular Clusters that are associated with the Milky Way galaxy distributed around the Galactic Center?
Please submit your answer as plain test in the main message body of an e-mail to kai-1060-hw@physics.utah.edu before midnight (MST) on April 10, 2008. Plain text in the main message body of your e-mail means no attachments!!!
Last modified: Thu Apr 3 13:17:26 MDT 2008