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"Hubble Space Telescope Observations of the White Dwarf Cooling Sequence of M4"..
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| DJ Kenosis |
I was a coauthor on this paper which was just recently released on the Astrophysical Journal (Supplements Section: since it was damn long). Here's a link to the site where you can see a version of it in pdf.
HST obs. of WD Cooling Sequence of M4
It's a very interesting paper...at least I think so! |
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| DJ Kenosis |
| oh come on, I know you guys have been just chomping at the bit to tell everyone what you think about our cooling sequence model and how it results in a substantially older age to M4 than the DeMarchi group :P |
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| Subey |
What's a Gyr?
I'm only familiar with widening gyres :) |
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| DJ Kenosis |
| quote: | Originally posted by Subey
What's a Gyr?
I'm only familiar with widening gyres :) |
Gyr=gigayear or 10^9 years. Brad is saying that from cooling models of white dwarfs (matching them to color-magnitude diagrams) the age of the galactic halo (well, at least this cluster in the halo) is about 12 Gyr or 12 billion years. |
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| 3xx3r7 |
This is interesting read. Majority of the analysis and technical terms are way over my head. I used to be interested in astronomy, especially in the life phases of stars.
Good stuff, keep it up. |
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| Subey |
Kenosis has the Enterprise as an Avatar, so from now one he's our Astrometrics officer, so anytime we have any questions of that nature we will ask him.
Question 1: What is the maximum size a sun can be without turning "on" (i.e. what is the maximum mass it can have without undergoing fusion)
[edit: and please translate the answer to be relative to our sun as being 1 solar mass] |
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