Lecture 12 Notes

1 Page
130 Views
Unlock Document

Department
Astronomy & Astrophysics
Course
AST201H1
Professor
Stefan Mochnacki
Semester
Winter

Description
Cliff Lau University of Toronto AST201 Lecture 12 (March 1, 2011) Death of a high-mass star the main differences (between high and low-mass stars) are that they die faster and they can fuse elements heavier than helium before they run out of things to burn. Due to the higher compression its extra gravity provides, massive stars can fuse elements all the way up to iron. They cannot fuse iron. Once a massive stars core stops burning, its own gravity wins out over pressure and starts crushing it. Low-mass stars stop collapsing because their electrons refuse to get close together; massive stars get around this by simply destroying their electrons. In seconds, most of the stars core is turned into neutrons. Further collapse is prevented by neutron degeneracy pressure. Meanwhile, the rest of the star is rushing inward at about 20% of
More Less

Related notes for AST201H1

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit