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Re: How many preceding supernovae: Does our Sun have a great-grandmother?

by Erik Max Francis <max@[EMAIL PROTECTED] > Feb 9, 2008 at 02:51 PM

Matt Browne SFW wrote:

> Well, our Sun is a metal-rich star and scientists are quite sure that
> two stars ending as supernova preceded the formation of our Sun (so it
> has a "mother" and a "grandmother"). There are metal-deficient and
> metal-poor stars, which also gives an indication about the number of
> generations. The question is was the "grandmother" made up of
> primordial material? Or are there more than 2 stars after the big bang
> that led to the formation of the Sun? Is there really a way of
> knowing? Does a great-grandmother exist? Are there even more
> ancestors? 13.7 billion years is a long time and large stars burn up
> in a few 100 million years or less. Any insights on this?

The Sun is usually considered to be a late second- or early 
third-generation star, but that's a rough estimate, not a count of the 
number of supernovae that contributed to the Sun's formation accretion 
disk.  There were surely many stars over the history of the Universe 
that contributed to the Sun's material.

-- 
Erik Max Francis && max@[EMAIL PROTECTED]
 && http://www.alcyone.com/max/
  San Jose, CA, USA && 37 18 N 121 57 W && AIM, Y!M erikmaxfrancis
   Tell me the truth / I'll take it like a man
    -- Chante Moore




 3 Posts in Topic:
How many preceding supernovae: Does our Sun have a great-grandmo
Matt Browne SFW <matt.  2008-02-09 08:51:36 
Re: How many preceding supernovae: Does our Sun have a
"alanmc95210@[EMAIL   2008-02-09 09:21:13 
Re: How many preceding supernovae: Does our Sun have a great-gra
Erik Max Francis <max@  2008-02-09 14:51:40 

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