XBOOTES: AN X-RAY SURVEY OF THE NDWFS BOOTES FIELD. II. THE X-RAY SOURCE CATALOG

摘要: We present results from a Chandra survey of the 9 deg 2 Bootes field NOAO Deep Wide-Field Survey (NDWFS). This XBootes consists 126 separate contiguous ACIS-I observations each approximately 5000 s in duration. These unique allow us to search for large-scale structure and calculate X-raysource statistics overawide,contiguousfieldofviewwitharcsecondangularresolutionanduniformcoverage. Opticalspectroscopicfollow-upobservationsandtherichNDWFSdatasetwillallowustoidentifyandclassifythese X-ray‐selected sources. Using wavelet decomposition, we detect 4642 point sources with n � counts. In order keep our detections 99% reliable, limit list 4 For observation assuming canonical unabsorbed active galactic nucleus (AGN) type X-ray spectrum, count on-axis source correspondsto afluxof4:7 ;10 15 ergscm 1 inthe soft (0.5‐2keV) band, 1:5 ; 10 14 thehard (2‐7 keV) 7:8 ergs cm full (0.5‐7 band. The 0.5‐7 keV band has 3293 addition sources, 43 extended have been detected, consistent depth these number counts clusters. here catalog survey, including positions, fluxes, hardness ratios, their uncertainties. differential per flux density interval, N(S), (0.5‐2 N(S) is well fitted by broken power law slope 2:60 þ0:11 0:12 at bright fluxes 1:74 þ0:28 0:22 faint fluxes. hard described single an index 2:93 þ0:09 0:09.