Spring 2003

__HOMEWORK ASSIGNMENT #9 Due Thursday
May 1, 2003 4:30PM__

C&O refers to the textbook *An Introduction to Modern Astrophysics,
* by B.W. Carroll & D.A. Ostlie

- Einstein introduced the cosmological constant, Lambda, into the field equations of general relativity in order to produce a static, non-evolving model to describe the Universe. In this case R, the scale factor of the Universe, is constant with time. Starting from the Freidmann equation including a cosmological constant term, derive expressions for R and Lambda for Einstein's static Universe. (Hint: the time derivatives of R equal zero for this model.)
- C&O, page 1324, problem 28.9
- C&O, page 1324, problem 28.13

Please send any comments to Jack Hughes, jph@physics.rutgers.edu.

Revised April 25, 2003