Statistical Identification of Directly-imaged Exoplanet candidates, Reviewed to Inform Selection
SIDERIS calculates the probability of finding a background object with specified colour and magnitude within a separation from a target star.
Navigate to your working directory, then clone this repository:
git clone https://github.com/aiza-kenzhebekova/SIDERIS
Then install the package's dependencies:
cd SIDERIS
pip install -r requirements.txt
To run the background probability calculator:
python background_object_prob_calc.py input_miri_example.dat
or if you would like to run TRILEGAL (only recommended if you have blue colour candidates):
python background_object_prob_calc.py input_miri_example.dat --trilegal RA Dec FOV
- Sometimes, TRILEGAL fails to run. If this happens, please try again at a later time, or run without TRILEGAL.
- RA and Dec in decimal degrees
- FOV (field of view) in sq. arcsec
This is a .dat file where the header is either "F444W F200W-F444W Separation" (for NIRCam) or "F1500W F1500W-F2100W Separation" (for MIRI)
- see input_miri_example.dat or input_nircam_example.dat for the format
- separation is in arcseconds
- This is optional as I have already done this (see the "keep" photometry file in JADES and SMILES folders)
- If you want to run this:
python dropout_test.py 'fits file directory' Instrument output_file_name.dat
You can download the relevant fits files at:
- https://archive.stsci.edu/hlsp/jades (JADES goods-s field: F200W, F356W, F444W)
- https://archive.stsci.edu/hlsp/smiles (SMILES goods-s field: F560W, F1500W, F2100W)
Alberts S., et al., 2024, ApJ, 976, 224 doi:10.3847/1538-4357/ad7396
Astropy Collaboration, Price-Whelan, A. M., Lim, P. L., et al. 2022, ApJ, 935, 167 doi:10.3847/1538-4357/ac7c74
Eisenstein D. J., et al., 2023, arXiv e-prints, p. arXiv:2306.02465 doi:10.3847/1538-4365/ae3163
Linder E. F., Mordasini C., Mollière P., Marleau G.-D., Malik M., Quanz S. P., Meyer M. R., 2019, A&A, 623, A85 doi:10.1051/0004-6361/201833873
Rieke G. H., Alberts S., Shivaei I., Lyu J., Willmer C. N. A., Pérez-González P., Williams C. C., 2024, ApJ, 975, 83 doi:10.3847/1538-4357/ad6cd2
This work is based [in part] on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST.
Aiza Kenzhebekova
Email: a.kenzhebekova@sms.ed.ac.uk
