SRSC Column Details
This table shows the descriptions of the columns on the website and in the downloadable csv. Not all columns in the csv are displayed on the website.
For full details on the construction and inclusions of the catalogue please see Driessen et al..
| Website Column | CSV column | Units | Description |
|---|---|---|---|
| Links | Links to further information on the source, where available. Includes links to Simbad, CASDA (for ASKAP observations), Vizier, and the Gaia DR3 database. | ||
| Light curve | Shows a diagram of the radio light curve of the source. This is designed to indicate the number of observations of the source and the general shape of the light curve. The bar highlighted in red is the radio detection for that row in the table. | ||
| Identification | Identification | A unique identifier for each star in the catalogue. | |
| Star name | A single identifier for the star in the website table for ease of identification. Names are given priority in order of: GCVS_ID, Simbad_ID, GaiaDR3_ID, TYCHO_ID, 2MASS_ID, HIP_ID, UCAC4_ID, Archival_ID | ||
| Star information | |||
| Survey | Archival_Survey | The archival survey used to provide the astrometric information shown here (i.e. the position, proper-motion and parallax information) | |
| Survey ID | Archival_ID | Designation of the source in the survey used to provide the astrometric information for the source | |
| RA | Archival_ra_hms | h:m:s | The J2000 RA in hours:minutes:seconds proper-motion corrected to the date in the "epoch" column |
| RA err | Archival_ra_err | mas | The uncertainty on the Right Ascension |
| Dec | Archival_dec_dms | d:m:s | The J2000 Declination in degrees:minutes:seconds proper-motion corrected to the date in the "epoch" column |
| dec err | Archival_dec_err | mas | The uncertainty on the Declination |
| RA | Archival_ra | degree | The J2000 RA in degrees proper-motion corrected to the date in the "epoch" column |
| Dec | Archival_dec | degree | The J2000 Dec in degrees proper-motion corrected to the date in the "epoch" column |
| PMRA | Archival_pmra | mas/yr | The proper-motion in Right Ascension (*cos(Dec)) |
| PMRA err | Archival_pmra_err | mas/yr | The uncertainty on the proper-motion in Right Ascension (*cos(Dec)) |
| PMDec | Archival_pmdec | mas/yr | The proper-motion in Declination |
| PMDec err | Archival_pmdec_err | mas/yr | The uncertainty on the proper-motion in Declination |
| Epoch | Archival_epoch | jyear | The observation epoch of the source in the survey. The RA and Dec provided here is proper-motion correct/observed, all RA and Dec are in the J2000 reference frame |
| Parallax | Archival_parallax | mas | The parallax provided by the survey |
| Parallax err | Archival_parallax_err | mas | The uncertainty on the parallax |
| Radio information | |||
| Telescope | Radio_telescope | The radio telescope used to make the radio detection shown in this row | |
| Survey | Radio_survey | Name of the radio survey the radio source was detected in | |
| Frequency | Radio_freq_MHz | MHz | The central frequency of the radio observation |
| RA | Radio_ra_hms | h:m:s | The Right Ascension in hours:minutes:seconds of the source in the radio observation |
| RA err | Radio_ra_err | arcsec | The uncertainty on the Right Ascension |
| Dec err | Radio_dec_err | arcsec | The uncertainty on the Declination |
| RA | Radio_ra | degree | The Right Ascension in degrees of the source in the radio observation |
| Dec | Radio_dec | degree | The Declination in degrees of the source in the radio observation |
| Dec | Radio_dec | d:m:s | The Declination in degrees of the source in the radio observation |
| Separation | Radio_optical_sep_arcsec | arcsec | The separation between the radio and optical position, where the optical position has been proper-motion corrected to the epoch of the radio observation |
| Radio_I_measurementType | Radio_I_measurementType | The Stokes I measurement type. This can be "Detection" (the source was detected), "Upper limit" (the source was not detected and the measurement shown is an upper limit) or "NoMeasurement" (the flux density was not measured at all) | |
| SI | Radio_I_flux_int | mJy | The integrated flux density of the Stokes I detection of the source |
| SI err | Radio_I_flux_int_err | mJy | The uncertainty on the integrated flux density of the Stokes I detection of the source |
| Radio_I_flux_peak | Radio_I_flux_peak | mJy | The peak flux density of the Stokes I detection of the source |
| Radio_I_flux_peak_err | Radio_I_flux_peak_err | mJy | The uncertainty on the peak flux density of the Stokes I detection of the source |
| Radio_local_I_RMS | Radio_local_I_RMS | mJy/beam | The local Stokes V rms |
| Radio_V_measurementType | Radio_V_measurementType | The Stokes V measurement type. This can be "Detection" (the source was detected), "Upper limit" (the source was not detected and the measurement shown is an upper limit) or "NoMeasurement" (the flux density was not measured at all) | |
| SV | Radio_V_flux_int | mJy | The integrated flux density of the Stokes V detection of the source |
| SV err | Radio_V_flux_int_err | mJy | The uncertainty on the integrated flux density of the Stokes V detection of the source |
| Radio_V_flux_peak | Radio_V_flux_peak | The peak flux density of the Stokes V detection of the source | |
| Radio_V_flux_peak_err | Radio_V_flux_peak_err | The uncertainty on the peak flux density of the Stokes V detection of the source | |
| Radio_local_V_RMS | Radio_local_V_RMS | mJy/beam | The local Stokes I rms |
| Survey ID | Radio_component_id | The identifier/name of the radio source in the radio survey | |
| Observation ID | Radio_SBID | The designation/identifier of the radio field or observation in the radio survey | |
| Start time | Radio_starttime_isot | ISOT | ISOT start time of the radio observation |
| End time | Radio_endtime_isot | ISOT | ISOT end time of the radio observation |
| Radio_starttime_mjd | Radio_starttime_mjd | MJD | Start time of the radio observation in MJD |
| Radio_endtime_mjd | Radio_endtime_mjd | MJD | End time of the radio observation in MJD |
| Integration time | Radio_exptime_s | s | Integration time of the radio observation |
| Radio_maj_axis | Radio_maj_axis | arcsec | The major axis of the synthesised beam |
| Radio_min_axis | Radio_min_axis | arcsec | The minor axis of the synthesised beam |
| Radio_pos_angle | Radio_pos_angle | degree | The position angle of the synthesised beam |
| Radio_maj_axis_err | Radio_maj_axis_err | arcsec | Uncertainty on the major axis of the synthesised beam |
| Radio_min_axis_err | Radio_min_axis_err | arcsec | Uncertainty on the major axis of the synthesised beam |
| Match information | |||
| Search method | Search_method | The method used to identify the radio emission as stellar emission from this star | |
| Search method indicator | Search_method_bin | Indicates the search methods the source was found using. The possible values are the sum of cross-match=2, variability=4, proper-motion=8, and Stokes V=16. For example, a source found in both a cross-match and Stokes V search would have a value of 2+16=18. | |
| Crossmatch radius | Crossmatch_radius_arcsec | arcsec | The radius used to cross-match between the radio and optical position of the source in the search for stellar radio emission. The optical position has been proper-motion corrected to the epoch of the radio observation |
| Star IDs | |||
| Simbad | Simbad_ID | The main identifier from the CDS Simbad database | |
| Gaia DR3 | GaiaDR3_ID | Gaia Data Release 3 (DR3) unique source identifier (unique within a particular Data Release) | |
| TYC | TYCHO_ID | TYC1-3 (TYC number) Tycho identifier | |
| 2MASS | 2MASS_ID | 2MASS designation from the Two Micron All Sky Survey at IPAC | |
| GCVS | GCVS_ID | Designation from the General Catalogue of Variable Stars (GCVS) | |
| HIP | HIP_ID | Hipparcos input catalogue running number | |
| UCAC4 | UCAC4_ID | Recommended identifier from the Fourth U.S. Naval Observatory CCD Astrograph Catalog | |
| Reference | Reference | The reference (DOI) for the radio star identification |