VizieR Online Data Catalog: Chandra, XMM-Newton and Swift-XRT ULX and HLX (Tranin+ 2024)
Abstract
The recent versions of large X-ray catalogues 2SXPS, 4XMM-DR11 and CSC2.0 are cross-correlated with the largely complete galaxy catalogue GLADE to obtain these samples of ULXs and HLXs. An automatic classification of X-ray sources (Tranin et al., 2022A&A...657A.138T, Cat. J/A+A/657/A138) is used to drastically reduce the fraction of contaminants among selected ULXs, as well as a visual inspection of optical counterparts. HLX contaminants are selected out by removing background and foreground objects, according to the (spectroscopic or photometric) redshift of their optical counterpart, if any.
(2 data files).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- June 2023
- Bibcode:
- 2023yCat..36810016T
- Keywords:
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- Active gal. nuclei;
- Binaries: X-ray;
- X-ray sources