Transfer learning for galaxy feature detection: Finding Giant Star-forming Clumps in low redshift galaxies using Faster R-CNN

This repository contains the data released in the paper 'Transfer learning for galaxy feature detection: Finding Giant Star-forming Clumps in low redshift galaxies using Faster R-CNN' (DOI to follow on publication). We release a detailed catalogue of Giant Star-forming Clumps (GSFCs), detected for the full set of Galaxy Zoo: Clump Scout galaxies observed by SDSS using the Faster R-CNN architecture with the Zoobot classification-CNN as a feature extraction backbone. The final models and code are made publicly available via Github: https://github.com/ou-astrophysics/Faster-R-CNN-for-Galaxy-Zoo-Clump-Scout. We will release updates if needed via Zenodo versioning. We recommend using the latest version of this repository. You can check the version you are currently viewing on the right-hand sidebar. Please cite the paper (DOI to follow on publication) when using the data in this repository. The csv-file FRCNN_Zoobot_SDSS_GZCS_detections.csv has the following columns. Alternatively, the file FRCNN_Zoobot_SDSS_GZCS_detections.gzip contains the same data but stored as a parquet-file. Column name Description specobjid SDSS spec object ID dr7objid SDSS DR7 object ID clump_id Clump index clump_label_id Clump label ID (1 or 2) clump_label_name Clump label name clump_score Detection score for the clump clump_centre_ra Clump centroid RA in degrees clump_centre_dec Clump centroid dec in degrees clump_flux_u Clump u-band flux in Jy clump_flux_g Clump g-band flux in Jy clump_flux_r Clump r-band flux in Jy clump_flux_i Clump i-band flux in Jy clump_flux_z Clump z-band flux in Jy clump_flux_err_u Clump u-band flux error in Jy clump_flux_err_g Clump g-band flux error in Jy clump_flux_err_r Clump r-band flux error in Jy clump_flux_err_i Clump i-band flux error in Jy clump_flux_err_z Clump z-band flux error in Jy clump_mag_u Clump u-band magnitude (AB-mag) clump_mag_g Clump g-band magnitude (AB-mag) clump_mag_r Clump r-band magnitude (AB-mag) clump_mag_i Clump i-band magnitude (AB-mag) clump_mag_z Clump z-band magnitude (AB-mag) clump_ext_mag_u Clump u-band extinction (E(B-V), AB-mag) clump_ext_mag_g Clump g-band extinction (E(B-V), AB-mag) clump_ext_mag_r Clump r-band extinction (E(B-V), AB-mag) clump_ext_mag_i Clump i-band extinction (E(B-V), AB-mag) clump_ext_mag_z Clump z-band extinction (E(B-V), AB-mag) clump_mag_corr_u Clump corrected u-band magnitude (AB-mag) clump_mag_corr_g Clump corrected g-band magnitude (AB-mag) clump_mag_corr_r Clump corrected r-band magnitude (AB-mag) clump_mag_corr_i Clump corrected i-band magnitude (AB-mag) clump_mag_corr_z Clump corrected z-band magnitude (AB-mag) clump_mag_corr_u_g Clump colour (u-g) clump_mag_corr_g_r Clump colour (g-r) clump_mag_corr_r_i Clump colour (r-i) clump_mag_corr_i_z Clump colour (i-z) clump_flux_ratio Est. clump/galaxy near-UV flux ratio (u-band) is_clump_3pct Flag (True/False) if clump/galaxy flux ratio is >3% is_clump_8pct Flag (True/False) if clump/galaxy flux ratio is >8% galaxy_ra Host galaxy RA in degrees galaxy_dec Host galaxy dec in degrees galaxy_z Host galaxy redshift galaxy_mag_u Host galaxy u-band magnitude (AB-mag) galaxy_mag_g Host galaxy g-band magnitude (AB-mag) galaxy_mag_r Host galaxy r-band magnitude (AB-mag) galaxy_mag_i Host galaxy i-band magnitude (AB-mag) galaxy_mag_z Host galaxy z-band magnitude (AB-mag) galaxy_mag_err_u Host galaxy u-band magnitude error (AB-mag) galaxy_mag_err_g Host galaxy g-band magnitude error (AB-mag) galaxy_mag_err_r Host galaxy r-band magnitude error (AB-mag) galaxy_mag_err_i Host galaxy i-band magnitude error (AB-mag) galaxy_mag_err_z Host galaxy z-band magnitude error (AB-mag) galaxy_flux_u Host galaxy u-band flux in Jy galaxy_flux_g Host galaxy g-band flux in Jy galaxy_flux_r Host galaxy r-band flux in Jy galaxy_flux_i Host galaxy i-band flux in Jy galaxy_flux_z Host galaxy z-band flux in Jy galaxy_expAB_r Host galaxy axis ratio from SDSS galaxy_expRad_r Host galaxy exponential fit scale radius from SDSS galaxy_lmass Host galaxy log mass in MSun galaxy_lssfr Host galaxy log specific SFR galaxy_mag_corr_u Host galaxy corrected u-band magnitude (AB-mag) galaxy_mag_corr_g Host galaxy corrected g-band magnitude (AB-mag) galaxy_mag_corr_r Host galaxy corrected r-band magnitude (AB-mag) galaxy_mag_corr_i Host galaxy corrected i-band magnitude (AB-mag) galaxy_mag_corr_z Host galaxy corrected z-band magnitude (AB-mag)