PhoSim v6.3 is available!
To simulate a field of astronomical objects you can do the following command:
phosim examples/small_catalog -c examples/nobackground
It should look like this (log scale and zoomed in):
The small catalog file has the following commands:
rightascension 0
declination 0
moonalt -90.0
stars 18.0 30.0 0.1
galaxies 18.0 30.0 0.1
This specifies a set of stars and galaxies in the 18th through 30th magnitude range covering a circle with diameter of 0.1 degrees. The stars and galaxies have a range of realistic spectral energy distribution and sky densities. The galaxies have a detailed set of morphologies.
If you increase the exposure time in the small_catalog to obtain a much deeper image as:
vistime 150000.0
Then the following image will be obtained:
The angular size of the image can be chosen to be larger than the focal plane and PhoSim will correctly trim away objects that do not contribute photons.
