Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
New Topic  
killian killian
wrote...
Silver Member
Posts: 6024
10 years ago
You discover a binary star system in which one member is a15 solar mass main-sequence star and the other star is a 10 solar mass giant star. How do we believe that a star system such as this might have come to exist?
A) The giant must once have been the more massive star but transferred some of its mass to its companion.
B) Other than the very low odds of finding a system with two such massive stars, there is nothing surprising about the fact that such systems exist.
C) The two stars probably were once separate but became a binary when a close encounter allowed their mutual gravity to pull them together.
D) The main-sequence star probably is a pulsating variable star and therefore appears to be less massive than it really is.
E) Although both stars probably formed from the same clump of gas, the more massive one must have had its birth slowed so that it became a main-sequence star millions of years later than its less massive companion.
Read 458 times
2 Replies
Smiling Face with Open Mouth
Replies
Answer accepted by topic starter
padrepadre
wrote...
Staff Member
Educator
Top Poster
Posts: 21608
9 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
9 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
  1275 People Browsing
Related Images
  
 276
  
 224
  
 307
Your Opinion
Do you believe in global warming?
Votes: 370

Previous poll results: Where do you get your textbooks?