AETC - Example 1 : Star field

Create a New Star list with the Object Generator that can be found in the AETC home page

Set the FoV (180 arcsec), the number of stars to be created (1000), the magnitude range (18-28), and select the magnitude distribution function (power law with index 0.5)
Select "Linear gradient", Gx=1 and Gy=1 for a spatially unifor distribution.
create the list by clicking on the "Create" button.

Check the output and extract the star list ("EXTRACT" button).

Cick "Download list in pixel coordinates". The input star catalogue will be saved on your local disk.

In the AETC home page select the LBC red arm configuration and click "LOAD".

Set the sky brightness using the table for Mt. Graham, and the airmass to a value 1.0
Select the Rayleigh law for the armspheric absorption and set the observatory altitude to 2000 m.

Select the Observation band (R).
Select the exposure time (1000 s), the number of exposures (10) and the seeing (0.7 arcsec).

Select the source for the signa-to-noise calculation. In this example we used a star with mag=27 (Vega system) in the R-band and a SED described by a 10000K black body.

Generate a 800x800 pixelsimage. Select "Stars" checkbox and click on the "Browse" button next to it. A File Selection Dialog box will open. Use this to select the file with the input star list that was saved before. Be sure that the checkbox "Upload" is selected
Click "SEND" to run the simulation and generate the image.

The next page is divided in three sections:
i) the first section summarizes the input parameters and shows the results about the computed SNR

ii) the second section shows some plots

iii) the last section shows a preview of the simulated image. Click on the "SAVE image" to save a fits file with the simulation

A complete description of the output page can be found in the Help page

The output simulated image.