Binary Evolution, SN Ia Progenitors: Difference between revisions
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[http://wiki.physics.fsu.edu/wiki/index.php/AST4218/5315:_Astrophysical_Seminar_-_Fall_2009 Back to Astro Seminar] | [http://wiki.physics.fsu.edu/wiki/index.php/AST4218/5315:_Astrophysical_Seminar_-_Fall_2009 Back to Astro Seminar] | ||
What is the main idea? | |||
What have we learned about stellar interiors from combining stellar evolutionary theory with observation? | |||
What conditions are most likely to lead to symbiotic stars? | |||
The only unifying characteristic of symbiotic stars is that they are all binary. How would the laws of the universe have to change to permit the existence of higher order symbiotic systems? Would binary systems sill be able to exist in such a universe? | |||
Revision as of 22:52, 4 September 2009
Presenter : Cheyvonne Media:Example.ogg
Suggested Starting Points
- Carroll & Ostlie, Chap 18
- Iben & Tutukov 1984
- Iben & Tutukov 1996
- Iben 1991
Note that you should have download access to these articles if you are browsing from an on-campus internet address. May not work from home.
Scenario Machine: Interactive Binary Star Builder
Explore various evolutionary scenarios for binaries at
http://xray.sai.msu.ru/sciwork/scenario.html
You may want to begin with
A = 600, M1 = 3, M2 = 2,
and increase/decrease the orbital distance by a factor of 10.
Questions:
- What type of systems are produced along evolutionary sequences?
- How to change parameters to produce a system consisting of a neutron star and a white dwarf?
Discussion
What is the main idea?
What have we learned about stellar interiors from combining stellar evolutionary theory with observation?
What conditions are most likely to lead to symbiotic stars?
The only unifying characteristic of symbiotic stars is that they are all binary. How would the laws of the universe have to change to permit the existence of higher order symbiotic systems? Would binary systems sill be able to exist in such a universe?