H-R diagrams (B-V)

  • Thread starter vociferous
  • Start date
  • #1
246
6
I was plotting the color magnitude diagram of a globular cluster and I noticed something odd. On most H-R diagrams, the turn-off from the main sequence to the giant branch is somewhere between (B-V) magnitude values of about .5-1.0.

On my plot, the turn-off is between about -.4 and -0.1.

I am assuming that there is some data adjustment being done that I have missed.

I am also kind of puzzled by the presence of what appear to be a few hot stars, either super-giants or stars that are much hotter than the sun, neither of which should be present in a globular cluster where the stars are about the age of the Milky Way.
 

Answers and Replies

Related Threads on H-R diagrams (B-V)

  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
5
Views
4K
  • Last Post
Replies
5
Views
3K
  • Last Post
Replies
1
Views
2K
Replies
3
Views
3K
  • Last Post
Replies
1
Views
2K
Replies
1
Views
2K
Replies
0
Views
2K
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
8
Views
2K
Top