Stripe 82-XL: The ∼54.8 deg<SUP>2</SUP> and ∼18.8 Ms Chandra and XMM-Newton Point-source Catalog and Number of Counts

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dc.contributor.authorPeca, Alessandro
dc.contributor.authorCappelluti, Nico
dc.contributor.authorLamassa, Stephanie
dc.contributor.authorUrry, C. Megan
dc.contributor.authorMoscetti, Massimo
dc.contributor.authorMarchesi, Stefano
dc.contributor.authorSanders, David
dc.contributor.authorAuge, Connor
dc.contributor.authorGhosh, Aritra
dc.contributor.authorAnanna, Tonima Tasnim
dc.contributor.authorTorres-Alba, Nuria
dc.contributor.authorTreister, Ezequiel
dc.date.accessioned2025-01-20T16:05:43Z
dc.date.available2025-01-20T16:05:43Z
dc.date.issued2024
dc.description.abstractWe present an enhanced version of the publicly available Stripe 82X catalog (S82-XL), featuring a comprehensive set of 22,737 unique X-ray point sources identified with a significance greater than or similar to 4 sigma. This catalog is four times larger than the original Stripe 82X catalog, by including additional archival data from the Chandra and XMM-Newton telescopes. Now covering similar to 54.8 deg(2 )of nonoverlapping sky area, the S82-XL catalog roughly doubles the area and depth of the original catalog, with limiting fluxes (half-area fluxes) of 3.4 x 10(-16) (2.4 x 10(-15)), 2.9 x 10(-15) (1.5 x 10(-14)), and 1.4 x 10(-15) (9.5 x 10(-15)) erg s(-1) cm(-2) across the soft (0.5-2 keV), hard (2-10 keV), and full (0.5-10 keV) bands, respectively. S82-XL occupies a unique region of flux-area parameter space compared to other X-ray surveys, identifying sources with rest-frame luminosities from 1.2 x 1038 to 1.6 x 1047 erg s(-1) in the 2-10 keV band (median X-ray luminosity, 7.2 x 1043 erg s(-1)), and spectroscopic redshifts up to z similar to 6. By using hardness ratios, we derived the obscuration of active galactic nuclei (AGNs), obtaining a median value of log(NH/cm(-2))=21.6-1.6+1.0 and an overall, obscured fraction ( log(NH/cm-2)>22 ) of similar to 36.9%. S82-XL serves as a benchmark in X-ray surveys and, with its extensive multiwavelength data, is especially valuable for comprehensive studies of luminous AGNs.
dc.fuente.origenWOS
dc.identifier.doi10.3847/1538-4357/ad6df4
dc.identifier.eissn1538-4357
dc.identifier.issn0004-637X
dc.identifier.urihttps://doi.org/10.3847/1538-4357/ad6df4
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/89918
dc.identifier.wosidWOS:001336997600001
dc.issue.numero2
dc.language.isoen
dc.revistaAstrophysical journal
dc.rightsacceso restringido
dc.titleStripe 82-XL: The ∼54.8 deg<SUP>2</SUP> and ∼18.8 Ms Chandra and XMM-Newton Point-source Catalog and Number of Counts
dc.typeartículo
dc.volumen974
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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