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ColorPro: PSF-corrected aperture-matched photometry

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Ada Coda
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ColorPro: PSF-corrected aperture-matched photometry

Postby Ada Coda » Sat Aug 29, 2015 5:10 pm

ColorPro: PSF-corrected aperture-matched photometry

Abstract: ColorPro automatically obtains robust colors across images of varied PSF. To correct for the flux lost in images with poorer PSF, the "detection image" is blurred to match the PSF of these other images, allowing observation of how much flux is lost. All photometry is performed in the highest resolution frame (images being aligned given WCS information in the FITS headers), and identical apertures are used in every image. Usually isophotal apertures are used, as determined by SExtractor (ascl:1010.064). Using SExSeg (ascl:1508.006), object aperture definitions can be pre-defined and object detections from different image filters can be combined automatically into a single comprehensive "segmentation map." After producing the final photometric catalog, ColorPro can automatically run BPZ (ascl:1108.011) to obtain Bayesian Photometric Redshifts.

Credit: Coe, Dan; Benitez, Narciso


Bibcode: 2015ascl.soft08005C

ID: ascl:1508.005
Last edited by Ada Coda on Tue Nov 20, 2018 9:10 pm, edited 1 time in total.
Reason: Updated code entry.

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