• SCUBA2_PHOTOM

SCUBA2_PHOTOM

Description

A simple PICARD recipe to perform aperture photometry of a source. The results are written to a log file called log.flux if desired.

There are three methods available:

• calculate the flux within an aperture, corrected for a background estimated from everything outside that aperture (default);
• calculate the flux within an aperture, corrected for a background estimated from within an annulus;

• calculate the flux using the autophotom aperture photometry application.

A log file is written with the calculated values (unless LOGFILE = 0).

Notes

This recipe assumes that all forms of background removal and cropping has been carried out.

Available recipe parameters

• ANNULUS

  • flag to denote whether to use an annulus for background estimation (automatically true if AUTOPHOTOM is true)

• ANNULUS_INNER
  • scale factor (in terms of aperture radius) for inner radius of annulus used for background estimate (default is 1.25)
• ANNULUS_OUTER
  • scale factor for outer radius of annulus used for background estimate (default is 2)
• APERTURE_RADIUS
  • radius of aperture (in arcsec) for masking out source (otherwise 30 arcsec)
• AUTOPHOTOM

  • use autophotom for aperture photometry

• LOGFILE
  • Flag to denote whether to write results to a log file at the end of processing - default is 1 (write a log file)