swift_snephot

Swift Supernovae Photometry Pipeline from Pritchard et al. 2014 - https://ui.adsabs.harvard.edu/abs/2014ApJ...787..157P/abstract

Legacy, IDL, use at your own (extreme) risk. This repo is more for my records than anything as I haven't touched it since ~2014.

Expects to have an up-to-date CALDB, HEADAS install, and a $SNE system variable for a data root directory, and a $SNEPL system variable for a photomety archive directory

E.g. , in your profile ...

####NASA HEASOFT Setup. HEADAS=/home/users/tpritchard/heasoft/x86_64-pc-linux-gnu-libc2.12 export HEADAS

source $HEADAS/headas-init.sh

CALDB=/home/users/tpritchard/bin/caldb export CALDB

source $CALDB/software/tools/caldbinit.sh

####UVOT Pipeline Config SNE=/home/users/tpritchard/sne export SNE

SNEPL=/home/users/tpritchard/sne_phot export SNEPL

General usage:

Download and untar swift data into $SNE/SNXXXXabcd
Make a text file control that has a line for each file you want to process in the form of:
TID Seg# Templ? Ignore-Keywords

Should look something like:

-bash-4.1$ pwd
/home/users/tp1632/sne/SN2018gep

-bash-4.1$ more comlist.bat

00010879 001 0 ASPCORR:NONE
00010879 002 0 ASPCORR:NONE
00010879 004 0 ASPCORR:NONE
00010879 005 0 ASPCORR:NONE
00010879 006 0 ASPCORR:NONE
00010879 008 0 ASPCORR:NONE
00010879 009 0 ASPCORR:NONE
00010879 010 0 ASPCORR:NONE
00010879 011 0 ASPCORR:NONE
00010879 012 0 ASPCORR:NONE
00010879 013 0 ASPCORR:NONE
00010879 014 0 ASPCORR:NONE
00010879 015 1 ASPCORR:NONE

Commands can be run as:

To stack data:

sne_stack_obs,'SNXXXXabc','comlist.bat'

To perform photometry:

sne_gal_sub,'SNXXXXabc'
This expects two regions to be in $SNE/SNXXXXabcd directory:
SNXXXXabc_3.reg - a 3" source region file centered on the science object
SNXXXXabc_bkgclear.reg - a larger region for sky-background for aperture photometry

Will perform aperture photometry on object region in stacked science image (from first command) in the stacked directory (will be made automatically).

If no template image is found (would be made automatically by the above command), procedes to compute aperture phot w/o image subtraction.

Image subtraction uses coincidence loss corrections described in Brown et al. 2012 and Pritchard et al. 2014.

Has keywords to specify AB or Vega magnitudes, aperture size (typically 3" or 5" dependding on background.

Also includes automated plotting tools:

sne_plot_lc,'SNXXXXabc'
sne_plot_clr,'SNXXXXabc'

Plots get placed in subdirectories under #SNEPL

Above Functions have optional /save commands to save IDL .sav files of photometry and color in these archive subdirectories

Files with *_lss.pro include additional CCD large scale structure correction