SMGPS Compact Source Catalogue (Mutale+, 2025) ================================================================================================================================== Description: A catalogue of 510,599 compact radio sources (area < 5 synthesized beams) detected in the SARAO MeerKAT Galactic Plane Survey above a signal-to-noise threshold of 5 ---------------------------------------------------------------------------------------------------------------------------------- Col. # | Col. Name | Units | Description ---------------------------------------------------------------------------------------------------------------------------------- 1 | csc_id | --- | Catalogue source identification number 2 | Name | --- | Galactic source name 3 | IAUName | --- | IAU designation of the source name 4 | tileName | --- | File identifier of mosaic from which the source was extracted 5 | island | --- | A group of 1 or more Gaussians identified as pixels with contiguous source emission 6 | source | --- | A single Gaussian component 7 | background | mJy/beam | background flux density 8 | local_rms | mJy/beam | rms noise around the immediate vicinity of the source 9 | lon | deg | Galactic longitude of the centroid position of the source 10 | err_lon | deg | Source-extraction fitting error on Galactic longitude 11 | lat | deg | Galactic latitude of the centroid position of the source 12 | err_lat | deg | Source-extraction fitting error on Galactic latitude 13 | ra | deg | Right Ascension of the centroid position of the source 14 | dec | deg | Declination of the centroid position of the source 15 | peak_flux | mJy/beam | Peak flux density 16 | err_peak_flux| mJy/beam | Source-extraction fitting error on peak flux density 17 | int_flux | mJy | Integrated flux density (calculated as a/b/peak_flux) 18 | err_int_flux | mJy | Source-extraction fitting error on integrated flux density 19 | a | arcsec | Fitted major axis 20 | err_a | arcsec | Error on fitted major axis 21 | b | arcsec | Fitted minor axis 22 | err_b | arcsec | Error on fitted minor axis 23 | pa | deg | Fitted position angle 24 | err_pa | deg | Error on fitted position angle 25 | flags | --- | Fitting flags (see main text for description) 26 | snr | --- | Signal-to-noise ratio (calculated as peak_flux/local_rms) 27 | area | arcsec2 | Source area (calculated as pi.a.b/4ln2) 28 | nbs | --- | Near bright source flag (yes = within 0.5 degrees of a bright source) ----------------------------------------------------------------------------------------------------------------------------------