Table 2
Columns and units present in the catalogue.
Column name | Format/unit |
---|---|
Source_name | e.g. LOL1J104657.0+482723 |
Gaus_id | Integer |
E_RA | arcsec |
Dec | deg |
E_Dec | arcsec |
Total_flux | mJy |
E_Total_flux | mJy |
Peak_flux | mJy beam−1 |
E_Peak_flux | mJy beam−1 |
Maj | arcsec |
E_Maj | arcsec |
Min | arcsec |
E_Min | arcsec |
PA | deg |
E_PA | deg |
DC_Maj | arcsec |
E_DC_Maj | arcsec |
DC_Min | arcsec |
E_DC_Min | arcsec |
DC_PA | deg |
E_DC_PA | deg |
Is1_rms | mJy beam−1 |
S_Code | S, M or C |
Mosaic_id | e.g. p164+47 |
Notes. The columns are: source identifier (Source_name), Gaussian identifier (present only in the Gaussian components catalogues as derived by the source finder. Although a source can have multiple Gaussian components, the combination of Mosaic_id and Gaus_id is unique), J2000 right ascension (RA), J2000 declination (Dec), integrated flux density (Total_flux), peak brightness (Peak_flux), major axis (Maj), minor axis (Min), position angle (PA), deconvolved major axis (DC_Maj), deconvolved minor axis (DC_Min), deconvolved position angle (DC_PA), local noise at the source location (Isl_rms), type of source as classified by PyBDSF (S_Code – here 'S' indicates an isolated source fit with a single Gaussian; 'C' represents sources fit by a single Gaussian but within an island of emission that contains other sources; and 'M' is used for sources that are extended and fitted with multiple Gaussians), the mosaic identifier (Mosaic_id). The errors in the catalogue are the uncertainties obtained from the PyBDSF source fitting. Additional uncertainties on the source extensions, astrometry and flux density scale are discussed in the text.
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