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shapepipe.modules.ngmix_package

shapepipe.modules.ngmix_package

NGMIX PACKAGE.

This package contains the module for ngmix.

Author

Axel Guinot

Parent modules

  • sextractor_runner

  • psfex_interp_runner or mccd_interp_runner

  • vignetmaker_runner

Input

Galaxy image vignets

Output

Shape catalogue

Description

This module calls the weak-lensing shape measurment and metacalibration software NGMIX [Sheldon, 2015]. In particular the GalSim [Rowe et al., 2015] fitting method of NGXMIX is called to obtain galaxy shape measurements. The metacalibration routines of NGMIX are also called to provide all of the measurements required to calibrate the shear values.

Module-specific config file entries

MAG_ZPfloat

Photometric zero point

PIXEL_SCALEfloat

Pixel scale in arcseconds

LOG_WCSstr

Path to world coordinate system log file (*sqlite)

ID_OBJ_MINint

ID of first galaxy object to be processed; not used if set to -1 (default)

ID_OBJ_MAXint

ID of last galaxy object to be processed; not used if set to -1 (default)

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