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| Paper: |
CCD growth curves - Application to faint and crowded point sources |
| Volume: |
8, CCDs in Astronomy |
| Page: |
312 |
| Authors: |
Howell, Steve B. |
| Abstract: |
Two-dimensional digital aperture photometry of point sources traditionally involves extracting the source data with a large apearture which includes all the flux. This large aperture also includes many low S/N pixels. The use of small software apertures allow high S/N data to be obtained but do not collect all the flux from a source. CCD growth curves are a method of correcting this flux to yield an estimate of the true value. The use of growth curves for faint or crowded sources is examined. |
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