From: Amara Graps (amara@amara.com)
Date: Mon Jul 22 2002 - 22:46:48 MDT
I said:
>All of this seems really odd to me. I don't think that this person is a
>kook
I withdraw this statement. I can't find standard nucleosynthesis
in his theory to power the sun. Maybe I'm dense or he writes densely
but I give up.
--------
Yesterday, there was posted a paper to the LANL archives giving an
overview of helioseismology. I worked for a group of helioseismologists
for several years, and I think that this is the nicest detailed summary
of the topic that I have ever seen. Detailed like a textbook, clear like
a popular science article; in the sciences, this a piece of art. Written
by one of the primary helioseismologists in the field and a teacher (and
a friend): Joergen Christensen-Dalsgaard. If you have a science background
and want to understand what helioseismology is and why it can nail down
the basic underpinnings of astrophysics (stellar evolution) then you'll
like this paper:
http://xxx.lanl.gov/abs/astro-ph/0207403
Astrophysics, abstract
astro-ph/0207403
From: J. Christensen-Dalsgaard <jcd@ifa.au.dk>
Date: Thu, 18 Jul 2002 20:43:00 GMT (889kb)
Helioseismology
Authors: J. Christensen-Dalsgaard
Comments: 60 pages, 27 figures. Scheduled for publication in Rev. Mod.
Phys., Oct. 2002. A larger gzipped postscript version, with higher-quality
figures, is available at this http URL
Oscillations detected on the solar surface provide a unique
possibility for investigations of the interior properties of a
star. Through major observational efforts, including extensive
observations from space, as well as development of sophisticated
tools for the analysis and interpretation of the data, we have
been able to infer the large-scale structure and rotation of the
solar interior with substantial accuracy, and we are beginning to
get information about the complex subsurface structure and
dynamics of sunspot regions, which dominate the magnetic activity
in the solar atmosphere and beyond. The results provide a detailed
test of the modeling of stellar structure and evolution, and hence
of the physical properties of matter assumed in the models. In
this way the basis for using stellar modeling in other branches of
science is very substantially strengthened; an important example
is the use of observations of solar neutrinos to constrain the
properties of the neutrino.
Paper: Source (889kb), PostScript, or Other formats
-- ******************************************************************** Amara Graps, PhD email: amara@amara.com Computational Physics vita: ftp://ftp.amara.com/pub/resume.txt Multiplex Answers URL: http://www.amara.com/ ******************************************************************** "One world at a time." --Thoreau
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