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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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1.J/ApJS/262/51/table3XRT count rate 3{sigma} upper limits at the position of the 11 SMS4 sources of our sample not detected by Swift (11 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  Cat (char) MRC or PKS designation (meta.id;meta.dataset)
  SMS4 (char) SMS4 name (BHHMM+DDd) (meta.id;meta.main)
  n_SMS4 (char) b=sources in our initial Swift proposal (meta.note)
  Date1 "Y:M:D" (n)First date of Swift observation (UT) (time.epoch;obs)
  Date2 "Y:M:D" (n)Latest date of Swift observation (UT) (time.epoch;obs)
  Nobs   [1/13] Number of Swift observations (meta.number)
  Exp s [1075/6453] Total XRT exposure time (time.duration;obs.exposure)
  P   [0.0054/1] Probability, P, that the signal is a statistical fluctuation of the background (stat.fit.goodness)
  Lim   [2.1/14.9] 0.3-10keV count rate upper limit at the position of the radio coordinates (phot.count;em.X-ray;stat.max)

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