The deep Chandra survey in the SDSS J1030+0524 field

NANNI, RICCARDORICCARDONANNIGILLI, RobertoRobertoGILLIVIGNALI, CRISTIANCRISTIANVIGNALIMIGNOLI, MarcoMarcoMIGNOLIPECA, ALESSANDROALESSANDROPECAMARCHESI, STEFANOSTEFANOMARCHESIAnnunziatella, MariannaMariannaAnnunziatellaBrusa, MarcellaMarcellaBrusaCALURA, FrancescoFrancescoCALURACappelluti, NicoNicoCappellutiChiaberge, MarcoMarcoChiabergeCOMASTRI, AndreaAndreaCOMASTRIIwasawa, K.K.IwasawaLANZUISI, GiorgioGiorgioLANZUISILIUZZO, Elisabetta TeodorinaElisabetta TeodorinaLIUZZOMarchesini, D.D.MarchesiniPRANDONI, ISABELLAISABELLAPRANDONITOZZI, PaoloPaoloTOZZIVITO, FabioFabioVITOZamorani, GianniGianniZamoraniNorman, C.C.Norman2024-01-192024-01-1920200004-6361http://hdl.handle.net/20.500.12386/34559We present the X-ray source catalog for the ∼479 ks Chandra exposure of the SDSS J1030+0524 field, which is centered on a region that shows the best evidence to date of an overdensity around a z > 6 quasar, and also includes a galaxy overdensity around a Compton-thick Fanaroff-Riley type II (FRII) radio galaxy at z = 1.7. Using wavdetect for initial source detection and ACIS Extract for source photometry and significance assessment, we create preliminary catalogs of sources that are detected in the full (0.5-7.0 keV), soft (0.5-2.0 keV), and hard (2-7 keV) bands, respectively. We produce X-ray simulations that mirror our Chandra observation to filter our preliminary catalogs and achieve a completeness level of > 91% and a reliability level of ∼95% in each band. The catalogs in the three bands are then matched into a final main catalog of 256 unique sources. Among them, 244, 193, and 208 are detected in the full, soft, and hard bands, respectively. The Chandra observation covers a total area of 335 arcmin2 and reaches flux limits over the central few square arcmins of ∼3 × 10-16, 6 × 10-17, and 2 × 10-16 erg cm-2 s-1 in the full, soft, and hard bands, respectively This makes J1030 field the fifth deepest extragalactic X-ray survey to date. The field is part of the Multiwavelength Survey by Yale-Chile (MUSYC), and is also covered by optical imaging data from the Large Binocular Camera (LBC) at the Large Binocular Telescope (LBT), near-infrared imaging data from the Canada France Hawaii Telescope WIRCam (CFHT/WIRCam), and Spitzer IRAC. Thanks to its dense multi-wavelength coverage, J1030 represents a legacy field for the study of large-scale structures around distant accreting supermassive black holes. Using a likelihood ratio analysis, we associate multi-band (r, z, J, and 4.5 μm) counterparts for 252 (98.4%) of the 256 Chandra sources, with an estimated reliability of 95%. Finally, we compute the cumulative number of sources in each X-ray band, finding that they are in general agreement with the results from the Chandra Deep Fields. Full Table 4 (catalog) is only available at the CDS via anonymous ftp to <A href="http://cdsarc.u-strasbg.fr/">http://cdsarc.u-strasbg.fr</A> (ftp://130.79.128.5) or via <A href="http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/637/A52">http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/637/A52</A>STAMPAenThe deep Chandra survey in the SDSS J1030+0524 fieldArticle10.1051/0004-6361/2020379142-s2.0-85088100935https://www.aanda.org/articles/aa/full_html/2020/05/aa37914-20/aa37914-20.htmlhttp://arxiv.org/abs/2003.13710v12020A&A...637A..52NFIS/05 - ASTRONOMIA E ASTROFISICAERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation