homework4

What is tdtdeq express this in terms of euv and the

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: r that you are computing ΔTd(t), and hence in addition to considering the discrete photon absorptions you must subtract off the mean energy input.] (d) Evaluate the variance of your result from (c). What is σ(Td)/Td,eq? Express this in terms of β, EUV, and the equilibrium energy content of the grain Ueq. (e) Numerically evaluate (d), to an order of magnitude, for a = 0.2 μm silicate grains in the diffuse ISM. #2. Interplanetary Dust. [14 points] Consider a silicate dust grain of radius a = 2 μm in the solar system. Make any approximations necessary to compl...
View Full Document

This document was uploaded on 03/08/2014 for the course AY 102 at Caltech.

Ask a homework question - tutors are online