table_1b.fits
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Key | Value | Type | Comment |
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Data for the 72 UCD candidates from Reylé (2018).
Key | Value | Type | Comment |
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Name | Type | Unit | Description |
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source_id | int64 | None | Gaia DR2 designation |
ra_corr | float64 | deg | Right ascension of the boresight corrected eRASS1 positions |
dec_corr | float64 | deg | Declination of the boresight corrected eRASS1 positions |
delta_radec | float32 | arcsec | Error on the eRASS1 positions |
sep_ox | float32 | arcsec | Separation between the proper motion corrected optical positions and the X-ray positions |
rate | float32 | cts/s | Broad band (0.2-5.0 keV) source count rates |
err_rate | float32 | cts/s | Error on the broad band (0.2-5.0 keV) source count rates |
detml | float32 | None | Maximum likelihood for the X-ray detection in the broad band (col. DET_LIKE_0 from eRASS1cat) |
flag_uniq_ucd | bool | None | Flag for UCDs being the unique Gaia counterparts to the eRASS1 source |
flag_cpm | bool | None | Flag for common proper motion pairs involving an UCD or UCD candidate |
flag_xdata | bool | None | Flag for objects with archival X-ray detections |
flag_bona_fide_ucd | bool | None | Flag for UCDs considered as ‘bona-fide’ counterparts to the eRASS1 sources |
flag_plausible_ucd | bool | None | Flag for UCDs considered as ‘plausible’ counterparts to the eRASS1 sources |
Gaia Collaboration, Brown et al. 2018. Gaia Data Release 2. Summary of the contents and survey properties (Vizier catalog: I/345)
Reylé 2018. New ultra-cool and brown dwarf candidates in Gaia DR2 (Vizier catalog: J/A+A/619/L8)
The eROSITA data model structure for catalogues was branched from the SDSS data model for value added catalogues.