FSENSCALIB.cl

What this procedure dose: Sensitivity calibration using standard star

Standard star spectrum is used to find the sensitivity curve of Subaru-Focas-Atmosphere

This is a batch (CL) script doing IRAF senscalib-related tasks (standard, sensfunc, senscalib, extinction) for FOCAS

Standard fitting parameters (fitting order) is pre-defined within the task.


After fwavecalib.cl

Before fsenscalib.cl

IRAF parameters setup

Data input: Object.fits, Standardstar.fits (Output files of fwavecalib.pro for Object and Standard stars. Both are in 2-d format)

Data output: Object_bg.fits (background-subtracted Object files)

Usage:

Make 1-d standard star spectrum

Input two numbers for object region.

Like this:

     [      SKY         ][OBJ][      SKY        ]

/\
/ \
-------------------/ \-----------------
#1 #2
Find #1 and #2 in the plot, and type them within the terminal.

Fit the standard star spectrum with the photometric database

Follow the IRAF standard procedure.
Input the star name

Find the sensitivity curve

Follow the IRAF sensfunc procedure

Do sensitivity correction

Non-interactive procedure (IRAF sensfunc)

Apply Atmospheric extinction correction

Non-interactive procedure (IRAF extinction)
Standard Mauna-Kea extinction curve and sec-z value in the header is used.