The X-ray catalogs detected from 11 extragalactic CalPV fields ("CalPVexG").
This webpage provides the "CalPVexG" X-ray catalog, their WISE counterparts, and a list of variable sources selected from this catalog
The figures of background lightcurves are also presented.
| Field name | Time | Area | RA | DEC | Lon | Lat | Type | Target description |
|---|---|---|---|---|---|---|---|---|
| ks | deg2 | deg | deg | deg | deg | |||
| A3391 | 28.7 | 14.9 | 96.65 | -54.06 | 262.78 | -25.19 | PV | galaxy clusters Abell 3391, Abell 3395 |
| 1H0707 | 21.3 | 0.9 | 107.31 | -49.39 | 260.04 | -17.53 | PV | AGN 1H 0707-495, galaxy cluster Abell 3408 |
| A3266 | 61.9 | 0.9 | 67.82 | -61.42 | 272.10 | -40.16 | CAL | galaxy cluster Abell 3266 |
| A3158 | 67.2 | 0.9 | 55.70 | -53.63 | 265.05 | -48.95 | CAL | galaxy cluster Abell 3158 |
| N7793 | 51.2 | 0.9 | 359.46 | -32.62 | 4.39 | -77.16 | PV | ULX NGC 7793 P13 |
| J1856 | 166 | 0.9 | 284.15 | -37.91 | 358.60 | -17.22 | CAL | neutron star J185635.1-375433 |
| 3C390 | 12.1 | 0.8 | 280.57 | 79.77 | 111.44 | 27.07 | COM | AGN 3C390.3 |
| H2213 | 44.0 | 0.9 | 285.61 | -37.12 | 359.81 | -18.01 | PV | dark cloud TGU H2213 P1 |
| J2334 | 71.5 | 1.2 | 353.64 | -47.37 | 334.59 | -64.83 | CAL | white dwarf RE J2334-471 |
| 47Tuc | 111 | 1.4 | 6.00 | -72.08 | 305.90 | -44.89 | CAL | globular cluster 47 Tuc |
| ES0102 | 311 | 1.7 | 16.03 | -71.95 | 301.54 | -45.14 | CAL | SNR 1ES 0102-72 (in SMC) |
Columns of the eROSITA extragalactic CalPV serendipitous catalog
| Name | Type | Unit | Description |
|---|---|---|---|
| Name | char[21] | None | Source name |
| UID | char[11] | None | Unique source ID |
| Field | char[7] | None | Field name |
| ID_SRC | int32 | None | Source ID in each field |
| inMskPnt | bool[1] | bool | Whether in the point-source sub-survey region |
| RA_corr | float64[1] | deg | RA [deg], corrected using CatWISE2020 |
| DEC_corr | float64[1] | deg | DEC [deg], corrected using CatWISE2020 |
| RADEC_ERR_corr | float64[1] | arcsec | Combined positional uncertainty, corrected [arcsec] |
| RA | float64 | deg | Uncorrected RA (J2000) |
| RA_LOWERR | float32 | arcsec | 1 sigma RA lower error [arcsec] |
| RA_UPERR | float32 | arcsec | 1 sigma RA upper error [arcsec] |
| DEC | float64 | deg | Uncorrected DEC (J2000) |
| DEC_LOWERR | float32 | arcsec | 1 sigma DEC lower error [arcsec] |
| DEC_UPERR | float32 | arcsec | 1 sigma DEC upper error [arcsec] |
| RADEC_ERR | float32 | arcsec | Combined positional uncertainty, uncorrected |
| DET_LIKE_0 | float32 | None | Detection likelihood, combining bands 1,2,3 |
| DET_LIKE_1 | float32 | None | Detection likelihood, band 1 |
| DET_LIKE_2 | float32 | None | Detection likelihood, band 2 |
| DET_LIKE_3 | float32 | None | Detection likelihood, band 3 |
| EXT | float32 | arcsec | Source extent |
| EXT_ERR | float32 | arcsec | Extent error |
| EXT_LOWERR | float32 | arcsec | 1 sigma extent lower error |
| EXT_UPERR | float32 | arcsec | 1 sigma extent upper error |
| EXT_LIKE | float32 | None | Extent likelihood |
| Exp | float32 | s | Unvignetted exposure time |
| galNHI | float64 | cm**(-2) | HI column density from HI4PI |
| galNH | float64 | cm**(-2) | Total Galactic absorption column density |
| ECF_0d2_0d6 | float64 | cm**2 erg**(-1) | Energy conversion factor between ML_FLUX_1 and ML_RATE_1 |
| ECF_0d6_2d3 | float64 | cm**2 erg**(-1) | Energy conversion factor between ML_FLUX_2 and ML_RATE_2 |
| ECF_2d3_5 | float64 | cm**2 erg**(-1) | Energy conversion factor between ML_FLUX_3 and ML_RATE_3 |
| ECF_0d5_2_s | float64 | cm**2 erg**(-1) | Energy conversion factor between ML_FLUX_s and ML_RATE_s |
| ECF_2d3_5_h | float64 | cm**2 erg**(-1) | Energy conversion factor between ML_FLUX_h and ML_RATE_t |
| ML_CTS_1 | float32 | count | Source net counts measured from count rate |
| ML_CTS_ERR_1 | float32 | count | 1 sigma counts error |
| ML_CTS_LOWERR_1 | float32 | count | 1 sigma counts lower error |
| ML_CTS_UPERR_1 | float32 | count | 1 sigma counts upper error |
| ML_RATE_1 | float32 | count s**(-1) | Source count rate measured by PSF-fitting |
| ML_RATE_ERR_1 | float32 | count s**(-1) | 1 sigma count rate error |
| ML_RATE_LOWERR_1 | float32 | count s**(-1) | 1 sigma count rate lower error |
| ML_RATE_UPERR_1 | float32 | count s**(-1) | 1 sigma count rate upper error |
| ML_FLUX_1 | float32 | erg cm**(-2) s**(-1) | Source flux converted from count rate |
| ML_FLUX_ERR_1 | float32 | erg cm**(-2) s**(-1) | 1 sigma flux error |
| ML_FLUX_LOWERR_1 | float32 | erg cm**(-2) s**(-1) | 1 sigma flux lower error |
| ML_FLUX_UPERR_1 | float32 | erg cm**(-2) s**(-1) | 1 sigma flux upper error |
| ML_BKG_1 | float32 | arcmin**(-2) | Background flux at the source position |
| ML_EXP_1 | float32 | s | Vignetted exposure value |
| ML_EEF_1 | float32 | None | enclosed energy fraction in the fitting aperture for band 1 PSF |
| ML_CTS_2 | float32 | count | Source net counts measured from count rate |
| ML_CTS_ERR_2 | float32 | count | 1 sigma counts error |
| ML_CTS_LOWERR_2 | float32 | count | 1 sigma counts lower error |
| ML_CTS_UPERR_2 | float32 | count | 1 sigma counts upper error |
| ML_RATE_2 | float32 | count s**(-1) | Source count rate measured by PSF-fitting |
| ML_RATE_ERR_2 | float32 | count s**(-1) | 1 sigma count rate error |
| ML_RATE_LOWERR_2 | float32 | count s**(-1) | 1 sigma count rate lower error |
| ML_RATE_UPERR_2 | float32 | count s**(-1) | 1 sigma count rate upper error |
| ML_FLUX_2 | float32 | erg cm**(-2) s**(-1) | Source flux converted from count rate |
| ML_FLUX_ERR_2 | float32 | erg cm**(-2) s**(-1) | 1 sigma flux error |
| ML_FLUX_LOWERR_2 | float32 | erg cm**(-2) s**(-1) | 1 sigma flux lower error |
| ML_FLUX_UPERR_2 | float32 | erg cm**(-2) s**(-1) | 1 sigma flux upper error |
| ML_BKG_2 | float32 | arcmin**(-2) | Background flux at the source position |
| ML_EXP_2 | float32 | s | Vignetted exposure value |
| ML_EEF_2 | float32 | None | enclosed energy fraction in the fitting aperture for band 2 PSF |
| ML_CTS_3 | float32 | count | Source net counts measured from count rate |
| ML_CTS_ERR_3 | float32 | count | 1 sigma counts error |
| ML_CTS_LOWERR_3 | float32 | count | 1 sigma counts lower error |
| ML_CTS_UPERR_3 | float32 | count | 1 sigma counts upper error |
| ML_RATE_3 | float32 | count s**(-1) | Source count rate measured by PSF-fitting |
| ML_RATE_ERR_3 | float32 | count s**(-1) | 1 sigma count rate error |
| ML_RATE_LOWERR_3 | float32 | count s**(-1) | 1 sigma count rate lower error |
| ML_RATE_UPERR_3 | float32 | count s**(-1) | 1 sigma count rate upper error |
| ML_FLUX_3 | float32 | erg cm**(-2) s**(-1) | Source flux converted from count rate |
| ML_FLUX_ERR_3 | float32 | erg cm**(-2) s**(-1) | 1 sigma flux error |
| ML_FLUX_LOWERR_3 | float32 | erg cm**(-2) s**(-1) | 1 sigma flux lower error |
| ML_FLUX_UPERR_3 | float32 | erg cm**(-2) s**(-1) | 1 sigma flux upper error |
| ML_BKG_3 | float32 | arcmin**(-2) | Background flux at the source position |
| ML_EXP_3 | float64[1] | s | Vignetted exposure value in band 3 |
| ML_EEF_3 | float32 | None | enclosed energy fraction in the fitting aperture for band 3 PSF |
| ML_CTS_s | float32[1] | count | Source net counts measured from count rate; 0.5-2 keV |
| ML_CTS_ERR_s | float32[1] | count | 1 sigma counts error; 0.5-2 keV |
| ML_CTS_LOWERR_s | float32[1] | count | 1 sigma lower error of counts;0.5-2 keV |
| ML_CTS_UPERR_s | float32[1] | count | 1 sigma upper error of counts;0.5-2 keV |
| ML_BKG_s | float32[1] | arcmin**(-2) | Background flux at the source position; 0.5-2 keV |
| ML_EXP_s | float32[1] | s | Vignetted exposure value; 0.5-2 keV |
| ML_RATE_s | float32[1] | count s**(-1) | Source count rate measured by forced PSF-fitting;0.5-2keV |
| ML_RATE_ERR_s | float32[1] | count s**(-1) | 1 sigma count rate error; 0.5-2 keV |
| ML_RATE_LOWERR_s | float32[1] | count s**(-1) | 1 sigma lower error of count rate;0.5-2 keV |
| ML_RATE_UPERR_s | float32[1] | count s**(-1) | 1 sigma upper error of count rate;0.5-2 keV |
| ML_EEF_s | float32[1] | None | enclosed energy fraction in the fitting aperture for band s PSF |
| ML_FLUX_s | float64[1] | erg cm**(-2) s**(-1) | Source flux converted from count rate; 0.5-2 keV |
| ML_FLUX_ERR_s | float64[1] | erg cm**(-2) s**(-1) | 1 sigma flux error; 0.5-2 keV |
| ML_FLUX_LOWERR_s | float64[1] | erg cm**(-2) s**(-1) | 1 sigma lower error of flux;0.5-2 keV |
| ML_FLUX_UPERR_s | float64[1] | erg cm**(-2) s**(-1) | 1 sigma upper error of flux;0.5-2 keV |
| ML_CTS_t | float32[1] | count | Source net counts measured from count rate; 2.3-5 keV |
| ML_CTS_ERR_t | float32[1] | count | 1 sigma counts error; 2.3-5 keV |
| ML_CTS_LOWERR_t | float32[1] | count | 1 sigma lower error of counts;2.3-5 keV |
| ML_CTS_UPERR_t | float32[1] | count | 1 sigma upper error of counts;2.3-5 keV |
| ML_BKG_t | float32[1] | arcmin**(-2) | Background flux at the source position; 2.3-5 keV |
| ML_EXP_t | float32[1] | s | Vignetted exposure value; 2.3-5 keV |
| ML_RATE_t | float32[1] | count s**(-1) | Source count rate measured by forced PSF-fitting;2.3-5keV |
| ML_RATE_ERR_t | float32[1] | count s**(-1) | 1 sigma count rate error; 2.3-5 keV |
| ML_RATE_LOWERR_t | float32[1] | count s**(-1) | 1 sigma lower error of count rate;2.3-5 keV |
| ML_RATE_UPERR_t | float32[1] | count s**(-1) | 1 sigma upper error of count rate;2.3-5 keV |
| ML_EEF_t | float32[1] | None | enclosed energy fraction in the fitting aperture for band h PSF |
| ML_FLUX_h | float64[1] | erg cm**(-2) s**(-1) | Source flux converted from count rate; 2-10 keV |
| ML_FLUX_ERR_h | float64[1] | erg cm**(-2) s**(-1) | 1 sigma flux error; 2-10 keV |
| ML_FLUX_LOWERR_h | float64[1] | erg cm**(-2) s**(-1) | 1 sigma lower error of flux; 2-10 keV |
| ML_FLUX_UPERR_h | float64[1] | erg cm**(-2) s**(-1) | 1 sigma upper error of flux; 2-10 keV |
| APE_CTS_s | int32[1] | count | Total counts extracted in the aperture; 0.5-2 keV |
| APE_BKG_s | float32[1] | count | Background counts in the aperture, excluding nearby sources;0.5-2keV |
| APE_EXP_s | float32[1] | s | Vignetted exposure value; 0.5-2 keV |
| APE_RADIUS_s | float32[1] | pixel | Aperture radius; 0.5-2 keV |
| APE_POIS_s | float32[1] | None | Poisson probability of being background fluctuation; 0.5-2 keV |
| APE_CTS_t | int32[1] | count | Total counts extracted in the aperture; 2.3-5 keV |
| APE_BKG_t | float32[1] | count | Background counts in the aperture, excluding nearby sources;2.3-5keV |
| APE_EXP_t | float32[1] | s | Vignetted exposure value; 2.3-5 keV |
| APE_RADIUS_t | float32[1] | pixel | Aperture radius; 2.3-5 keV |
| APE_POIS_t | float32[1] | None | Poisson probability of being background fluctuation; 2.3-5 keV |
| FluxObsv_Med_b1 | float32 | erg cm**(-2) s**(-1) | Observed flux in 0.2-0.5 keV, median |
| FluxObsv_Lo1_b1 | float32 | erg cm**(-2) s**(-1) | Observed flux in 0.2-0.5 keV, 1 sigma lower limit |
| FluxObsv_Up1_b1 | float32 | erg cm**(-2) s**(-1) | Observed flux in 0.2-0.5 keV, 1 sigma upper limit |
| FluxObsv_Lo2_b1 | float32 | erg cm**(-2) s**(-1) | Observed flux in 0.2-0.5 keV, 2 sigma lower limit |
| FluxObsv_Up2_b1 | float32 | erg cm**(-2) s**(-1) | Observed flux in 0.2-0.5 keV, 2 sigma upper limit |
| FluxObsv_Med_b2 | float32 | erg cm**(-2) s**(-1) | Observed flux in 0.5-1 keV, median |
| FluxObsv_Lo1_b2 | float32 | erg cm**(-2) s**(-1) | Observed flux in 0.5-1 keV, 1 sigma lower limit |
| FluxObsv_Up1_b2 | float32 | erg cm**(-2) s**(-1) | Observed flux in 0.5-1 keV, 1 sigma upper limit |
| FluxObsv_Lo2_b2 | float32 | erg cm**(-2) s**(-1) | Observed flux in 0.5-1 keV, 2 sigma lower limit |
| FluxObsv_Up2_b2 | float32 | erg cm**(-2) s**(-1) | Observed flux in 0.5-1 keV, 2 sigma upper limit |
| FluxObsv_Med_b3 | float32 | erg cm**(-2) s**(-1) | Observed flux in 1-2 keV, median |
| FluxObsv_Lo1_b3 | float32 | erg cm**(-2) s**(-1) | Observed flux in 1-2 keV, 1 sigma lower limit |
| FluxObsv_Up1_b3 | float32 | erg cm**(-2) s**(-1) | Observed flux in 1-2 keV, 1 sigma upper limit |
| FluxObsv_Lo2_b3 | float32 | erg cm**(-2) s**(-1) | Observed flux in 1-2 keV, 2 sigma lower limit |
| FluxObsv_Up2_b3 | float32 | erg cm**(-2) s**(-1) | Observed flux in 1-2 keV, 2 sigma upper limit |
| FluxObsv_Med_b4 | float32 | erg cm**(-2) s**(-1) | Observed flux in 2-4.5 keV, median |
| FluxObsv_Lo1_b4 | float32 | erg cm**(-2) s**(-1) | Observed flux in 2-4.5 keV, 1 sigma lower limit |
| FluxObsv_Up1_b4 | float32 | erg cm**(-2) s**(-1) | Observed flux in 2-4.5 keV, 1 sigma upper limit |
| FluxObsv_Lo2_b4 | float32 | erg cm**(-2) s**(-1) | Observed flux in 2-4.5 keV, 2 sigma lower limit |
| FluxObsv_Up2_b4 | float32 | erg cm**(-2) s**(-1) | Observed flux in 2-4.5 keV, 2 sigma upper limit |
| FluxObsv_Med_t | float32 | erg cm**(-2) s**(-1) | Observed flux in 2.3-5 keV, median |
| FluxObsv_Lo1_t | float32 | erg cm**(-2) s**(-1) | Observed flux in 2.3-5 keV, 1 sigma lower limit |
| FluxObsv_Up1_t | float32 | erg cm**(-2) s**(-1) | Observed flux in 2.3-5 keV, 1 sigma upper limit |
| FluxObsv_Lo2_t | float32 | erg cm**(-2) s**(-1) | Observed flux in 2.3-5 keV, 2 sigma lower limit |
| FluxObsv_Up2_t | float32 | erg cm**(-2) s**(-1) | Observed flux in 2.3-5 keV, 2 sigma upper limit |
The WISE counterparts identified using NWAY
| Name | Type | Unit | Description |
|---|---|---|---|
| UID | char[11] | None | Unique source ID |
| Field | char[7] | None | Field name |
| ID_SRC | int32 | None | Source ID in each field |
| RA_corr | float64 | deg | Right ascension, corrected using CatWISE2020 |
| DEC_corr | float64 | deg | Declination, corrected using CatWISE2020 |
| RADEC_ERR_corr | float64 | arcsec | Combined positional error, corrected |
| CW2_source_name | char[20] | None | CatWISE source name |
| CW2_source_id | char[18] | None | CatWISE source ID |
| CW2_ra | float64 | deg | CatWISE RA (ICRS) at reference epoch 2015 |
| CW2_dec | float64 | deg | CatWISE DEC (ICRS) at reference epoch 2015 |
| CW2_sigra | float64 | arcsec | CatWISE RA error |
| CW2_sigdec | float64 | arcsec | CatWISE DEC error |
| CW2_w1mag | float64 | mag | CatWISE W1 magnitude |
| CW2_w1sigm | float64 | mag | CatWISE W1 magnitude error |
| CW2_w2mag | float64 | mag | CatWISE W2 magnitude error |
| CW2_w2sigm | float64 | mag | CatWISE W2 magnitude error |
| dist_post | float32 | None | distance posterior probability |
| p_any | float32 | None | the probability that any of the associations is the correct one |
| p_i | float32 | None | relative probability of the match |
| p_X | float64[1] | None | probability of being X-ray source based only on the WISE photometry |
| match_flag | int16 | None | 1 for the most probable match, 2 for secondary match |
| Separation | float64[1] | arcsec | Separation between the pair of sources in arcsec |
| GA_source_id | float64[1] | None | Gaia EDR3 unique source ID |
| GA_ra | float64[1] | deg | Gaia RA (deg;ICRS) at reference epoch 2016 |
| GA_ra_error | float64[1] | mas | Gaia RA error (mas) |
| GA_dec | float64[1] | deg | Gaia DEC (deg;ICRS) at reference epoch 2016 |
| GA_dec_error | float64[1] | mas | Gaia DEC error (mas) |
| GA_parallax | float64[1] | mas | Gaia absolute stellar parallax (mas) |
| GA_parallax_error | float64[1] | mas | Gaia parallax error |
| GA_pmra | float64[1] | mas/year | Gaia proper motion in RA (mas/year) |
| GA_pmra_error | float64[1] | mas/year | Gaia RA proper motion error (mas/year) |
| GA_pmdec | float64[1] | mas/year | Gaia proper motion in DEC (mas/year) |
| GA_pmdec_error | float64[1] | mas/year | Gaia DEC proper motion error(mas/year) |
A list of variable sources selected from the X-ray catalog using a maximum amplitude method. All the 173 sources with variability significance >2 are provided. To guarantee a 3sigma purity, the 99 sources with significance >2.6 are recomended.
| Name | Type | Unit | Description |
|---|---|---|---|
| UID | char[11] | None | Unique source ID |
| T_lo | int32 | s | Time of the low-rate bin |
| T_hi | int32 | s | Time of the high-rate bin |
| Rate_lo | float32 | counts/s | 0.2-5 keV count rate of the low-rate bin |
| Rate_hi | float32 | counts/s | 0.2-5 keV count rate of the high-rate bin |
| V | float32 | None | Variability amplitude |
| S | float32 | None | Variability significance |
| mCts | int32 | counts | Minimum counts in each bin |
As described in Liu+2022, we extracted the background lightcurves from source-free regions for all the pointing-mode observations used in this work. The figures are in this document "The background lightcurve figures (pdf)"