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This table contains a catalog of 147 serendipitous X-ray sources selected to have hard spectra (spectral indices Alpha < 0.5) from a survey of 188 ROSAT fields. Such sources must be the dominant...
Search relevance: 271.97 | Views last month: 1 | Catalog Last Checked: November 10, 2026 at 11:56 PM -
The largest Local Group spiral galaxy, M 31, has been completely imaged for the first time, with an obtained luminosity lower limit ~10<sup>35</sup>erg/s in the 0.2 - 4.5 keV band. This XMM-Newton...
Search relevance: 106.30 | Views last month: 2 | Catalog Last Checked: November 10, 2026 at 11:57 PM -
This table contains the second Swift X-ray Point Source (2SXPS) catalog of detections by the Swift X-ray Telescope (XRT) used in Photon Counting (PC) mode in the 0.3-10 keV energy range. Swift is...
Search relevance: 71.29 | Views last month: 3 | Catalog Last Checked: November 10, 2026 at 11:57 PM
