× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
s
5
g
5
K
5
o
5
g
5
o
4
k
4
s
4
I
4
k
4
j
4
o
4
Home Q & A Board Science-Related Homework Help Physics
New Topic  
barry barry
wrote...
Posts: 11630
Rep: 151 1
10 years ago
Explain as exactly as possible the way in which the central engine of active galaxies and quasars actually works.  Why is the orientation so important?
Read 855 times
2 Replies

Related Topics

Replies
wrote...
#1
10 years ago
Matter from an accretion disk falls into a supermassive black hole. As it does so, it accelerates and emits energy.  About 20% of the energy from the mass falling in (from mass-energy conversion, E=mc2) is radiated off.  This energy may escape, or be absorbed by outer layers and re-radiated, or sent off as high-energy jets which give rise to radio lobes.  What we see from Earth depends greatly on whether we see it from the side as radio lobes, or from the top as a blazar.
Would you know my name, if I saw you in heaven?

Eric Clapton
barry Author
wrote...
#2
10 years ago
Thanks man
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  873 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 205
  
 263
  
 315
Your Opinion
Who's your favorite biologist?
Votes: 587
Previous poll results: Which is the best fuel for late night cramming?