# LOFAR H-ATLAS catalogue This catalogue has been generated in the H-ATLAS field using PyBDSF. More details about data reduction and analysis can be found in Gurkan et al. 2018 (http://adsabs.harvard.edu/abs/2018MNRAS.475.3010G) and Hardcastle et al. 2016 (http://adsabs.harvard.edu/abs/2016MNRAS.462.1910H). The following text describes the various columns in the catalogue: 1. `Source_id` - Radio source ID 2. `Isl_id` - Island ID assigned by the source extraction software PyBDSM 3. `RA` - Radio RA (J2000) 4. `E_RA` - Error on radio RA 5. `DEC` - Radio declination (J2000) 6. `E_DEC` - Error on radio declination 7. `Total_flux` - Total flux in Jy 8. `E_Total_flux` 9. `Peak_flux` - Peak flux in Jy 10. `E_Peak_flux` 11. `Maj` - Major axis of the source in degrees 12. `E_Maj` 13. `Min` - Minor axis of the source in degrees 14. `E_Min` 15. `PA` - Position angle of the source 16. `E_PA` 17. `Isl_Total_flux` - Total flux inside the island fitted by PyBDSM in Jy 18. `E_Isl_Total_flux` 19. `Isl_rms` - RMS value within the fitted island in Jy 20. `Isl_mean` - Mean flux within the island (values have been defaulted to 0) 21. `S_code` - Source morphology; S: single component, M: multiple components