High Energy Astrophysics -
Spring
2010
Homework #3 - due February 16
1. Download the data for ObsID 4555, an observation of the
ultraluminous X-ray source in NGC 5408. Extract a spectrum and
create response matrices. Fit the spectrum in the 0.3-8 keV band
using a model consisting of the sum of a power-law and a multicolor
disk blackbody with interstellar absorption. Hand in a plot of
your data and best fit along with the best fit parameters with errors
and an estimate of the flux.
2. Write a one page proposal for your intended data analysis
project. Include scientific motivation, description of the
Chandra observation(s) you will analyze, what analysis you plan to do.