The deep <i>Chandra</i> survey in the SDSS J1030+0524 field

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dc.contributor.authorNanni, R.
dc.contributor.authorGilli, R.
dc.contributor.authorVignali, C.
dc.contributor.authorMignoli, M.
dc.contributor.authorPeca, A.
dc.contributor.authorMarchesi, S.
dc.contributor.authorAnnunziatella, M.
dc.contributor.authorBrusa, M.
dc.contributor.authorCalura, F.
dc.contributor.authorCappelluti, N.
dc.contributor.authorChiaberge, M.
dc.contributor.authorComastri, A.
dc.contributor.authorIwasawa, K.
dc.contributor.authorLanzuisi, G.
dc.contributor.authorLiuzzo, E.
dc.contributor.authorMarchesini, D.
dc.contributor.authorPrandoni, I.
dc.contributor.authorTozzi, P.
dc.contributor.authorVito, F.
dc.contributor.authorZamorani, G.
dc.contributor.authorNorman, C.
dc.date.accessioned2025-01-23T19:51:37Z
dc.date.available2025-01-23T19:51:37Z
dc.date.issued2020
dc.description.abstractWe present the X-ray source catalog for the similar to 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 similar to 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 arcmin(2) and reaches flux limits over the central few square arcmins of similar to 3 x 10(-16), 6 x 10(-17), and 2 x 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 mu m) 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.
dc.fuente.origenWOS
dc.identifier.doi10.1051/0004-6361/202037914
dc.identifier.eissn1432-0746
dc.identifier.issn0004-6361
dc.identifier.urihttps://doi.org/10.1051/0004-6361/202037914
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/100590
dc.identifier.wosidWOS:000536189300010
dc.language.isoen
dc.revistaAstronomy & astrophysics
dc.rightsacceso restringido
dc.subjectsurveys
dc.subjectX-rays: general
dc.subjectcatalogs
dc.subjectgalaxies: high-redshift
dc.subjectquasars: supermassive black holes
dc.titleThe deep <i>Chandra</i> survey in the SDSS J1030+0524 field
dc.typeartículo
dc.volumen637
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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