LAT Light Curve Analysis: Aperture Photometry and ... - Fermi - NASA
LAT Light Curve Analysis: Aperture Photometry and ... - Fermi - NASA
LAT Light Curve Analysis: Aperture Photometry and ... - Fermi - NASA
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Things to be Aware of with <strong>Aperture</strong><br />
<strong>Photometry</strong><br />
The aperture contains photons from not just the<br />
source you’re interested in.<br />
R. Corbet<br />
It also contains photons from nearby sources <strong>and</strong><br />
the background. The background is particularly<br />
strong in the Galactic plane.<br />
The aperture can be made smaller to reduce<br />
the background. But this also reduces the<br />
number of photons from the source.<br />
The aperture can be made larger to increase<br />
the photons from the source. But this increases<br />
the background.<br />
COSPAR CBW 2010<br />
6
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