ELAIS S1 Field XMM-Newton X-Ray Source Catalog

ELAIS S1 Field XMM-Newton X-Ray Source Catalog ELAISS1XMM ivo://nasa.heasarc/elaiss1xmm NASA/GSFC HEASARC Puccetti et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source The formation and evolution of cosmic structures can be probed by studying the evolution of the luminosity function of the Active Galactic Nuclei (AGNs), galaxies and clusters of galaxies and of the clustering of the X-ray active Universe, compared to the IR-UV active Universe. To this purpose, the authors have surveyed with XMM-Newton the central ~0.6 deg2 region of the ELAIS-S1 field down to flux limits of ~5.5 x 10-16 erg cm-2 s-1 (0.5-2 keV, soft band, S), ~2 x 10-15 erg cm-2 s-1 (2-10 keV, hard band, H), and ~4 x 10-15 erg cm-2 s-1 (5-10 keV, ultra-hard band, HH). They present here the analysis of the XMM-Newton observations, the number counts in different energy bands and the clustering properties of the X-ray sources. They have detected a total of 478 sources, 395 and 205 of which detected in the S and H bands respectively. They identified 7 clearly extended sources and estimated their redshift through X-ray spectral fits with thermal models. In four cases the redshift is consistent with z = 0.4, so they may have detected a large scale structure formed by groups and clusters of galaxies through their hot intra-cluster gas emission. The relative density of the S band sources is higher near the clusters and groups at z ~ 0.4 and extends toward East and the South/West. This suggests that the structure is complex, with a size comparable to the full XMM-Newton field. Conversely, the highest relative source densities of the H band sources are located in the central-west region of the field. The mosaic of four partially overlapping deep XMM-Newton pointings covers a large (~0.6 deg2) and contiguous area of the ELAIS-S1 region. The pointings are named <pre> ELAIS-S1-A (RA=8.91912, DE=-43.31344, J2000), ELAIS-S1-B (RA=8.92154, DE=-43.65575, J2000), ELAIS-S1-C (RA=8.42195, DE=-43.30488, J2000) and ELAIS-S1-D (RA=8.42375, DE=-43.65327, J2000). </pre> The X-ray observations were performed on May 2003 through July 2003 with XMM-Newton's European Photon Imaging Camera (EPIC) and two MOS-CCD cameras. This table was created by the HEASARC in June 2008 based on the <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/457/501">CDS Catalog J/A+A/457/501</a> files elaisxmm.dat and catalog.dat. This is a service provided by NASA HEASARC . 2006A&A...457..501P https://heasarc.gsfc.nasa.gov/W3Browse/all/elaiss1xmm.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=elaiss1xmm& GET text/xml 180 99999 true 8.83962 -43.92045 0.0166666666666667 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=elaiss1xmm GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_elaiss1xmm&Action=More+Options&Action=Parameter+Search&ConeAdd=1 XMM-NEWTON 0.0166666666666667 X-ray public elaiss1xmm ELAIS S1 Field XMM-Newton X-Ray Source Catalog name Source Designation meta.id;meta.main char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable count_rate Count Rate (ct/s) ct/s phot.count;em.X-ray double nullable count_rate_error RMS uncertainty in Count Rate (ct/s) ct/s stat.error;phot.count;em.X-ray double nullable flux_limit Limit Flag for 0.5-10keV Flux meta.code;phot.flux;em.X-ray char nullable flux 0.5-10keV Flux (erg/s/cm^2) erg/s/cm^2 phot.flux;em.X-ray double nullable flux_error RMS Uncertainty in 0.5-10keV Flux (erg/s/cm^2) erg/s/cm^2 stat.error;phot.flux;em.X-ray double nullable source_number Sequential Identification Number for Each Source in Catalog meta.id;src short nullable sb_flux_error RMS Uncertainty in 0.5-2keV Flux (erg/s/cm^2) erg/s/cm^2 stat.error;phot.flux;em.X-ray.soft double nullable exposure Exposure Time (s) s time.duration;obs.exposure int nullable kmag_error RMS Error for Isophotal Magnitude in K Band mag stat.error;phot.mag;em.IR.K double nullable irac_ctrprt_prob Probability of IRAC Counterpart stat.probability double nullable optical_dec_j2000 Optical Declination of Barycenter (J2000) VIMOS/ESIS pos.eq.dec char nullable redshift_flag Flag Indicates Quality of Redshift meta.code.qual;src.redshift double nullable scr_area SCR Area Binary Number meta.number;obs.field short nullable uhb_flux 5-10keV (Ultra-Hard Band) Flux (erg/s/cm^2) erg/s/cm^2 phot.flux;em.X-ray.medium double nullable hb_count_rate_error RMS uncertainty in Count Rate in 2-10keV Band (ct/s) ct/s stat.error;phot.count;em.X-ray.medium double nullable sb_count_rate Count Rate in 0.5-2keV Band (ct/s) ct/s phot.count;em.X-ray.soft double nullable flux_8p0_um IRAC Aperture/Kron Flux at 8.0um microJy phot.flux.density;em.IR.4-8um double nullable error_radius RMS uncertainty in Position (arcsec) arcsec stat.error;pos double nullable uhb_count_rate Count Rate in 5-10keV Band (ct/s) ct/s phot.count;em.X-ray.medium double nullable lii Galactic Longitude degree pos.galactic.lon double nullable spectrum_number Running Spectrum Number meta.record int nullable hb_count_rate Count Rate in 2-10keV Band (ct/s) ct/s phot.count;em.X-ray.medium double nullable flux_4p5_um_error IRAC Aperture Flux Uncertainty at 4.5um microJy stat.error;phot.flux.density;em.IR.4-8um double nullable hb_flux_error RMS Uncertainty in 2-10keV Flux (erg/s/cm^2) erg/s/cm^2 stat.error;phot.flux;em.X-ray.medium double nullable irac_ra_j2000 IRAC Right Ascension of Barycenter (J2000) from Band-Merged Catalog pos.eq.ra char nullable sb_flux 0.5-2keV Flux (erg/s/cm^2) erg/s/cm^2 phot.flux;em.X-ray.soft double nullable flux_5p8_um MIPS Aperture/Kron Flux at 5.8um microJy phot.flux.density;em.IR.4-8um double nullable broad_type Broad Classification Code src.class short nullable y_pixel Y Position (pixel) pixel pos.cartesian.y;instr.pixel double nullable redshift Source Redshift src.redshift double nullable bck_counts Background Counts ct instr.background double nullable kmag Isophotal Magnitude in K Band mag phot.mag;em.IR.K double nullable significance Detection Significance stat.fit.goodness double nullable flux_4p5_um IRAC Aperture/Kron Flux at 4.5um microJy phot.flux.density;em.IR.4-8um double nullable hb_flux_limit Limit Flag for 2-10keV Flux meta.code;phot.flux;em.X-ray.medium char nullable rmag R Band Magnitude (Best of MAG_AUTO and MAG_ISOCOR) mag phot.mag;em.opt.R double nullable hb_flux 2-10keV Flux (erg/s/cm^2) erg/s/cm^2 phot.flux;em.X-ray.medium double nullable uhb_flux_error RMS Uncertainty in 5-10keV (Ultra-Hard Band) Flux (erg/s/cm^2) erg/s/cm^2 stat.error;phot.flux;em.X-ray.medium double nullable irac_dec_j2000 IRAC Declination of Barycenter (J2000) from Band-Merged Catalog pos.eq.dec char nullable sb_snr Signal-to-Noise Ratio at 0.5-2 keV stat.snr;em.X-ray.soft double nullable class Browse Object Classification src.class short nullable sb_flux_limit Limit Flag for 0.5-2keV Flux meta.code;phot.flux;em.X-ray.soft char nullable optical_ctrprt_prob Probability of Optical Counterpart stat.probability double nullable optical_ra_j2000 Optical Right Ascension of Barycenter (J2000) VIMOS/ESIS pos.eq.ra char nullable chandra_dec_j2000 Chandra Declination (J2000) pos.eq.dec char nullable chandra_ra_j2000 Chandra Right ascension (J2000) pos.eq.ra char nullable optical_xray_offset Distance Between X-ray and Optical Detections (arcsec) arcsec pos.angDistance double nullable bii Galactic Latitude degree pos.galactic.lat double nullable uhb_flux_limit Limit Flag for 5-10keV (Ultra-Hard Band) Flux meta.code;phot.flux;em.X-ray.medium char nullable irac_xray_offset Distance Between X-ray and IRAC Detections (arcsec) arcsec pos.angDistance double nullable snr Signal-to-Noise Ratio at 0.5-10 keV stat.snr;em.X-ray double nullable x_pixel X Position (pixel) pixel pos.cartesian.x;instr.pixel double nullable off_axis Off-Axis Angle (arcmin) arcmin instr.offset double nullable flux_3p6_um_error IRAC Aperture Flux Uncertainty at 3.6um microJy stat.error;phot.flux.density;em.IR.3-4um double nullable flux_5p8_um_error IRAC Aperture Flux Uncertainty at 5.8um microJy stat.error;phot.flux.density;em.IR.4-8um double nullable hb_snr Signal-to-Noise Ratio at 2-10 keV stat.snr;em.X-ray.medium double nullable flux_3p6_um IRAC Aperture/Kron Flux at 3.6um microJy phot.flux.density;em.IR.3-4um double nullable flux_24_um MIPS Aperture/Kron Flux at 24um microJy phot.flux.density;em.IR.15-30um double nullable sb_count_rate_error RMS uncertainty in Count Rate in 0.5-2keV Band (ct/s) ct/s stat.error;phot.count;em.X-ray.soft double nullable flux_24_um_error IRAC Aperture Flux Uncertainty at 24um microJy stat.error;phot.flux.density;em.IR.15-30um double nullable "size" Size (arcsec) arcsec phys.angSize double nullable rmag_error RMS Error for R Band Magnitude mag stat.error;phot.mag;em.opt.R double nullable uhb_count_rate_error RMS uncertainty in Count Rate in 5-10keV Band (ct/s) ct/s stat.error;phot.count;em.X-ray.medium double nullable extent_likelihood Extent Likelihood stat.likelihood;phys.angSize double nullable optical_instrument Instrument, VIMOS (8.) or WFI(ESIS) (2.2) meta.code;instr double nullable flux_8p0_um_error IRAC Aperture Flux Uncertainty at 8.0um microJy stat.error;phot.flux.density;em.IR.4-8um double nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable