table_C1.fits
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Key | Value | Type | Comment |
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Data for the 27 non-UCDs considered more plausible counterparts to eRASS1 sources.
Key | Value | Type | Comment |
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Name | Type | Unit | Description |
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source_id_ucd | int64 | None | Gaia DR2 designation of the UCD |
source_id_counterpart | int64 | None | Gaia DR2 designation of the alternative counterpart |
other_name | char[21] | None | Main SIMBAD designation of the alternative counterpart |
Gmag | float32 | mag | G-band magnitude from the Gaia DR2 catalog |
Jmag | float64 | mag | J-band magnitude from the 2MASS All-Sky PSC catalog |
W1mag | float64 | mag | W1-band magnitude from the AllWISE catalog |
spt | char[8] | None | Spectral type of the alternative counterpart derived from the G-J color index [note1] |
dist | float64 | pc | Distance estimated by Bailer-Jones et al. (2018) for the alternative counterpart |
elo_dist | float64 | pc | Lower error on the distance estimated by Bailer-Jones et al. (2018) |
eup_dist | float64 | pc | Upper error on the distance estimated by Bailer-Jones et al. (2018) |
ML_FLUX_2 | float32 | erg/cm2/s | X-ray flux in the eROSITA Band 2 |
ML_FLUX_ERR_2 | float32 | erg/cm2/s | Error on X-ray flux in the eROSITA Band 2 |
ML_FLUX_3 | float32 | erg/cm2/s | X-ray flux in the eROSITA Band 3 |
ML_FLUX_ERR_3 | float32 | erg/cm2/s | Error on X-ray flux in the eROSITA Band 3 |
object_type | char[6] | None | Object type of the alternative counterpart |
reference | char[4] | None | Reference for the object type |
[1] Schneider et al. 2007. The Sloan Digital Sky Survey Quasar Catalog. IV. Fifth Data Release (Vizier catalog: VII/260)
[2] Vasconcellos et al. 2011. Decision Tree Classifiers for Star/Galaxy Separation (Vizier catalog: J/AJ/141/189)
[4] McMahon et al. 2013. First Scientific Results from the VISTA Hemisphere Survey (VHS) (Vizier catalog: McMahon et al. 2021. DR5 catalog : II/367)
[5] Secrest et al. 2015. Identification of 1.4 Million Active Galactic Nuclei in the Mid-Infrared using WISE Data (Vizier catalog: J/ApJS/221/12)
[6] Cook et al. 2016. A method for selecting M dwarfs with an increased likelihood of unresolved ultracool companionship (Vizier catalog: J/MNRAS/457/2192)
[7] Stevens et al. 2017. Empirical Bolometric Fluxes and Angular Diameters of 1.6 Million Tycho-2 Stars and Radii of 350,000 Stars with Gaia DR1 Parallaxes (Vizier catalog: J/AJ/154/259)
[8] Assef et al. 2018. The WISE AGN Catalog (Vizier catalog: J/ApJS/234/23)
[9] Cantat-Gaudin et al. 2018. Characterising open clusters in the solar neighbourhood with the Tycho-Gaia Astrometric Solution (Vizier catalog: J/A+A/615/A49)
[10] Xiang et al. 2019. Abundance Estimates for 16 Elements in 6 Million Stars from LAMOST DR5 Low-Resolution Spectra (Vizier catalog: J/ApJS/245/34)
[11] This work based on the Gaia DR2 catalog
Skrutskie et al. 2006. The Two Micron All Sky Survey (2MASS) (Vizier catalog: II/246)
Wright et al. 2010. The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance (Vizier catalog: II/328)
Gaia Collaboration, Brown et al. 2018. Gaia Data Release 2. Summary of the contents and survey properties (Vizier catalog: I/345)
Bailer-Jones et al. 2018. Estimating Distance from Parallaxes. IV. Distances to 1.33 Billion Stars in Gaia Data Release 2 (Vizier catalog: I/347)
The eROSITA data model structure for catalogues was branched from the SDSS data model for value added catalogues.