This pipeline can be used to identify a line emission image from 4 low pass HST SBC filters.

Here is a list of softwares that needs to be installed before running the code:-

sudo apt-get install sextractor

conda install configparser
conda install astropy
conda install matplotlib
conda install scipy

conda install acstools
conda install pyfiglet
conda install termcolor

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. Here are the steps to run the pipeline:-

1. [Required] Download the FLT and FLC files for SBC, WFC filters for different ULIRGs in the working directory NULIRG/data folder.
2. [Required] Download dark files for the time of observation in a sub folder data_dark.
3. [Required] Download UV and HA PSF files and place them in UV_PSF folder and OPTICAL_PSF respectively.

3. [Required] Download config files and place all of them in sub directory config.
4. [Optional] Update params_default.cfg text file by changing package_dir and data_dir keywords. (This step is not required if this repository has been downloaded from here.)

At the end of above step we would have following subdirectories:-

subdir = ['data', 'data_dark', 'config', 'NULIRG']

Now we are ready to run the code:-

• Go to package_dir/NULIRG and run

python __init__.py

• Step 1. This will create all sub directories for all the ULIRGs

subsubdir = ['UV_RAW', 'UV_FLT', 'UV_DARK_SUB', 'UV_ALIGN', 'UV_DRZ', 'UV_PSF',
         'HA_FLC', 'HA_INTER', 'HA_DRC', 'HA_PSF']

subsubsubdir = ['FITS','TXT', 'PNG' ]

• Step 2. Make a text file with list of FLC and FLT files.
• Step 3. Selecting all the exposures that require dark subtraction
• Step 4. [optional] Populate the parameters in config file. (Adding this feature later on. For now, we are taking default config for this run)
• Step 5. [optional] Make a backup copy of FLT files. (Not using for now)
• Step 6. dark subtraction---> uncomment this

    # import UV_dark_main
    # UV_dark_main.main(default_config)

• Step 6. xregister aligning and rotating UV images --> uncomment this

    # import UV_xreg_rotate
    # UV_xreg_rotate.main(default_config)

• Step 7. combining all extensions from output of aligning images --> uncomment this

    # import UV_header_rename
    # UV_header_rename.main(default_config)

• Step 8. drizzling the aligned images using astrodrizzle --> uncomment this

    # import UV_astrodrizzle
    # UV_astrodrizzle.main(default_config)

• Step 9. PSFmatching for UV images --> uncomment this

    # import UV_psfmatch
    # UV_psfmatch.main(default_config)

• Step 10. HA image align and cut ---> uncomment this

    #import HA_align
    # HA_align.main(default_config)

• Step 11. HA image find defocus and PSF matching --> uncomment this

    import HA_psf_cut
    HA_psf_cut.main(default_config)
    import HA_psfmatch
    HA_psfmatch.main(default_config)

We use SemVer for versioning. For the versions available, see the tags on this repository.

• Sourabh Chauhan - Initial work - sourabhsc

See also the list of contributors who participated in this project.