Top Posters
Since Sunday
G
4
K
3
m
2
c
2
r
2
p
2
s
2
s
2
b
2
c
2
R
2
c
2
New Topic  
killian killian
wrote...
Silver Member
Posts: 6024
10 years ago
Prior to 1991, most astronomers assumed that gamma-ray bursts came from neutron stars (with accretion disks) within the Milky Way Galaxy. How do we now know that this hypothesis was wrong?
A) We now know that gamma-ray bursts come not from neutron stars but from black holes.
B) Theoretical work has proven that gamma rays cannot be produced in accretion disks.
C) Observations from the Compton Gamma-Ray Observatory showed that gamma-ray bursts come randomly from all directions in the sky.
D) Observations from the Compton Gamma-Ray Observatory showed that gamma-ray bursts occur too frequently to be attributed to neutron stars.
E) Observations from the Compton Gamma-Ray Observatory allowed us to trace gamma-ray bursts to pulsating variable stars in distant galaxies.
Read 498 times
2 Replies
Smiling Face with Open Mouth
Replies
Answer accepted by topic starter
padrepadre
wrote...
Staff Member
Educator
Top Poster
Posts: 21610
10 years ago
Sign in or Sign up in seconds to unlock everything for free
1
Mastering in Nutritional Biology
Tralalalala Slight Smile

Related Topics

killian Author
wrote...
Silver Member
10 years ago
Thx sir
Smiling Face with Open Mouth
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  875 People Browsing
Related Images
  
 4469
  
 923
  
 152
Your Opinion
Which of the following is the best resource to supplement your studies:
Votes: 300