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# extragalactic_hostless | ||
Repository for the extragalactic hostless project from CRP7 | ||
# ELEPHANT: ExtragaLactic Pipeline for Hostless AstroNomical Transients | ||
This repository contains the pipeline for potential hostless transients detection discussed in the paper(link). | ||
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Install the requirements with the command below | ||
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pip install -r requirements.txt | ||
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The pipeline parameters can be configured in pipeline_config.json file | ||
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{ | ||
"parquet_files_list": "data/*.parquet", | ||
"save_directory": "/path/to/save/results/", | ||
... | ||
} | ||
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To start the pipeline use the command below | ||
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python run_pipeline.py | ||
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The pipeline generates a result parquet file with the following columns for each input parquet file | ||
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- **b:cutoutScience_stampData_stacked:** stacked science images | ||
- **b:cutoutTemplate_stampData_stacked:** stacked template images | ||
- **b:cutoutDifference_stampData_stacked:** stacked template images | ||
- **science_clipped:** stacked sigma clipped science image | ||
- **template_clipped:** stacked sigma clipped template image | ||
- **number_of_stamps_in_stacking:** number of images used for stacking after FWHM stamp preprocessing | ||
- **is_hostless_candidate_clipping:** True if the candidate flagged as hostless by sigma clipping approach | ||
- **distance_science:** distance from transient to nearest mask in pixels | ||
- **anderson-darling_SCIENCE_N_statistic:** Anderson darling test statistic value for N x N cutout science image | ||
- **anderson-darling_SCIENCE_N_pvalue:** Anderson darling test p-value for N x N cutout science image | ||
- **anderson-darling_TEMPLATE_N_statistic:** Anderson darling test statistic value for N x N cutout template image | ||
- **anderson-darling_TEMPLATE_N_pvalue:** Anderson darling test p-value for N x N cutout template image | ||
- **kstest_SCIENCE_N_statistic:** Kolmogorov-Smirnov test statistic value for N x N cutout science image | ||
- **kstest_SCIENCE_N_pvalue:** Kolmogorov-Smirnov test p-value for N x N cutout science image | ||
- **kstest_TEMPLATE_N_statistic:** Kolmogorov-Smirnov test statistic value for N x N cutout template image | ||
- **kstest_TEMPLATE_N_pvalue:** Kolmogorov-Smirnov test p-value for N x N cutout template image | ||
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The project is part of [COIN Residence Program #7, Portugal, 2023](https://cosmostatistics-initiative.org/residence-programs/crp7/) | ||
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