unwise_psf: PSF models for unWISE coadds

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Ada Coda
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unwise_psf: PSF models for unWISE coadds

Post by Ada Coda » Thu Jan 31, 2019 8:35 pm

unwise_psf: PSF models for unWISE coadds

Abstract: The unwise_psf Python module renders point spread function (PSF) models appropriate for use in modeling of unWISE coadd images. unwise_psf translates highly detailed single-exposure WISE PSF models in detector coordinates to the corresponding pixelized PSF models in coadd space, accounting for subtleties including the WISE scan direction and its considerable variation near the ecliptic poles. Applications of the unwise_psf module include performing forced photometry on unWISE coadds, constructing WISE-selected source catalogs based on unWISE coadds and masking unWISE coadd regions contaminated by bright stars.

Credit: Meisner, Aaron; Schlafly, Eddie

Site: https://github.com/legacysurvey/unwise_psf

Bibcode: 2019ascl.soft01004M

ID: ascl:1901.004

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