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Astr 498V Fall 2001

Galaxies Sylvain Veilleux

September 20, 2001 DUE: October 2, 2001

PROBLEM SET # 2

Problem 1.

Linder's ``? Think About 2.1'' on p. 20.

Problem 2.

Linder's ``? Think About 2.2'' on p. 24.

Problem 3.

Linder's ``? Think About 2.5'' on p. 26.

Problem 4.

(a) Linder's ``? Think About 2.6'' on p. 28.

(b) Linder's ``? Think About 2.7'' on p. 29.

Problem 5.

Linder's ``? Think Hard About 2.3'' on p. 29. For $\Omega < 1$, show that a = A(cosh $\eta$ - 1), t = B(sinh $\eta$ - $\eta$), $\Omega$ = 2/(1 + cosh $\eta$). What are A and B? What are the expressions for a, t and $\Omega$ when $\Omega \gt$ 1?



 

Sylvain Veilleux
9/14/2001