Open Access
Table C.1
eRO-ExTra catalog column description
| Column | Unit | Description |
|---|---|---|
| ERO NAME | source name from DR1 or in the format eRASSU Jhhmmss.s-ddmmss | |
| ERO RA | deg | eROSITA Right Ascension (ICRS) from eRASS:5 |
| ERO DEC | deg | eROSITA Declination (ICRS) from eRASS:5 |
| ERO_FLUX_ERASS<N> | erg/cm2/s | source flux in 0.2-2.3 keV in eRASSN, N =1,2,3,4,(5, if available) |
| ERO_FLUX_ERR_ERASS<N> | erg/cm2/s | error flux (68 %) in 0.2-2.3 keV in eRASSN, N =1,2,3,4,(5, if available); “1 = flux upper limit (99.7%) |
| Amplitude | amplitude of variability between eRASS1 and eRASS2 | |
| Significance | significance of variability between eRASS1 and eRASS2 | |
| ERO_LCCLASS | eROSITA light curve class: 1 =decline, 2 =flare, 3 =brightening, 4 =other | |
| ERO_DATE | mjd | dates of eROSITA observations: (MJD_1,..,MJD_<N>), N =1,2,3,4,(5, if available) |
| NH | cm−2 | Galactic equivalent neutral hydrogen column density in the line of sight |
| ERO_GAMMA | photon index for the peak eRASS | |
| ERO_GAMMA_ERR | error photon index (68 %) for the peak eRASS | |
| ERO_CSTAT_DOF | C-statistic per degree of freedom, used to assess the goodness of fit | |
| ERO_FLUX_MOD | erg/cm2/s | source flux in energy band 0.2-2.3 keV for the peak eRASS |
| ERO_FLUX_MOD_ERR | erg/cm2/s | error flux (68%) in energy band 0.2-2.3 keV for the peak eRASS |
| ARCH_FLAG | archival X-ray constraints: 0 =not constraining UL, 1 =constraining UL, 2 =previously detected | |
| ARCH_DATE | mjd | dates of N archival observations: (X_1,..,X_<N>) |
| ARCH_FLUX | erg/cm2/s | source flux of N archival observations:(F_1,..,F_<N>) in 0.2–2.0 keV |
| ARCH_FLUX_ERR | erg/cm2/s | error flux (68%) of N archival observations:(F_err_1,..,F_err_<N>) in 0.2–2.0 keV; −1=flux upper limit (99.7%) |
| ARCH_INSTRUMENT | instruments of N archival observations (Instrument_1,..,Instrument_<N>) | |
| NWAY_bias_LS10_Xray_proba | probability weighting intruduced by Xray_proba prior (Salvato et al. 2018) | |
| NWAY_dist_bayesfactor | logarithm of the ratio of the prior and posterior from separation, positional error, and number density (Salvato et al. 2018) | |
| NWAY_dist_post | distance posterior probability comparing this association vs. no association (Salvato et al. 2018) | |
| NWAY_p_single | same as dist_post, but weighted by the prior (Salvato et al. 2018) | |
| NWAY_p_any | for each entry in the X-ray catalog, the probability that there is a counterpart (Salvato et al. 2018) | |
| NWAY_p_i | relative probability of the eROSITA/LS8 match (Salvato et al. 2018) | |
| LS10_RELEASE | integer denoting the camera and filter set used in LS10, which is unique for a given processing run of the data | |
| LS10 BRICKID | LS10 Brick ID | |
| LS10_OBJID | catalog object number within this LS10 brick | |
| LS10 RA | deg | J2000 Right Ascension of the LS10 counterpart |
| LS10_DEC | deg | J2000 Declination of the LS10 counterpart |
| LS10_RA_IVAR | 1/deg2 | inverse variance of RA , excluding astrometric calibration errors |
| LS10_DEC_IVAR | 1/deg2 | inverse variance of DEC, excluding astrometric calibration errors |
| LS10_FLUX_<X> | nanomaggy | LS10 model flux <X>, where X= g,r,i,z,W1,W2 |
| LS10_FLUX_IVAR_<X> | 1 /nanomaggy2 | Inverse variance of flux <X>, where X= g,r,i,z,W1,W2 |
| LS10_MW_TRANSMISSION_<X> | Galactic transmission in <X> filter in linear units [0, 1], where X= g,r,i,z,W1,W2 | |
| LS10_TYPE | morphological model from LS10 | |
| Z REDSHIFT | redshift | |
| Z_TYPE | redshift type: photoz = photometric, specz = spectroscopic | |
| Z REFERENCE | redshift origin | |
| SIMBAD_NAME | SIMBAD source ID | |
| SIMBAD_RA | deg | SIMBAD J2000 Right Ascension |
| SIMBAD_DEC | deg | SIMBAD J2000 Declination |
| SIMBAD_TYPE | SIMBAD main type | |
| TNS_NAME | Transient Name Server (TNS) source name | |
| TNS_RA | deg | TNS Right Ascension |
| TNS_DEC | deg | TNS Declination |
| TNS_DATE | mjd | TNS discovery date |
| VLASS_NAME | The Very Large Array Sky Survey (VLASS) source name | |
| VLASS_RA | deg | VLASS Right Ascension |
| VLASS_DEC | deg | VLASS Declination |
| VLASS_FLUX | mJy | VLASS total flux density at 3GHz |
| RACS_NAME | Rapid ASKAP Continuum Survey (RACS) source name | |
| RACS_RA | deg | RACS Right Ascension |
| RACS_DEC | deg | RACS Declination |
| RACS_FLUX | mJy | RACS total flux density at 0.88GHz |
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.