SExtractor link not quite work

[chengchengcode]

Hi Song,

Thank you very much for this wonderful collection! I checked some links and found the link of SExtractor in this page: https://github.com/dr-guangtou/taotie/blob/master/astro/topics/photometry.md

is not quite work, and the updates of astromatic is now in github: https://github.com/astromatic

So maybe update the link 'http://www.astromatic.net/software/sextractor ' to ' https://github.com/astromatic/sextractor ' ?

Another update about this software is the new version of SExtractor named SourceXtractorPlusPlus: https://github.com/astrorama/SourceXtractorPlusPlus

which may work better in the multi-extension fits.

Best, Cheng

[chengchengcode]

I would like to recommend one source extraction code: PyBDSF, which is designed to select targets in the radio interferometry images

https://github.com/lofar-astron/PyBDSF

I tried this code in some ALMA mosaic image and it works good and have consistent flux as measured by other codes.