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J/ApJS/262/51
  Swift X-ray obs. of 31 SMS4 QSOs & radio gal. (Maselli+, 2022)
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2022ApJS..262...51M
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    J/ApJS/262/51/table1(c)*List of correspondences established between the 31 SMS4 sources in our sample and the GLEAM 4Jy (G4Jy) or TGSS-ADR1 sources (Note) (31 rows)
    J/ApJS/262/51/detect(c)Swift-XRT detections of SMS4 sources of our sample (Table 2) and candidate counterparts (Table 7) (20 rows)
    J/ApJS/262/51/table3XRT count rate 3σ upper limits at the position of the 11 SMS4 sources of our sample not detected by Swift (11 rows)
    J/ApJS/262/51/table8(c)SMS4 sources with no data (2021 September) from narrow-field X-ray telescopes on board Swift, Chandra, or XMM-Newton (56 rows)

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       (c)  indicates tables which contain celestial coordinates 
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