VizieR

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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:
Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  
J/A+A/344/521
  LMC variable X-ray sources (Haberl+, 1999)
Post annotation
img(gal)
1.J/A+A/344/521/table1(c)Variable sources in the LMC region. I. (28 rows)
2.J/A+A/344/521/table2Variable sources in the LMC region II. (28 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (1)CountRate ct/s Count rate in broad band E (phot.count;em.X-ray)
  (1)DE2000 "d:m:s" (i) Declination (2000.0) (pos.eq.dec;meta.main)
  (1)E  Energy band of detection (Note 2)   (instr.bandpass)
  (1)e_CountRate ct/s rms uncertainty on CountRate (stat.error)
  (1)e_HR1  (n) rms uncertainty on HR1 (stat.error)
  (1)e_HR2  (n) rms uncertainty on HR2 (stat.error)
  (1)e_SRate ct/s (n) rms uncertainty on SRate (Note 4)   (stat.error)
   (ALL)[HP99]  (i) Catalogue entry (meta.id;meta.main)
  (1)HR1  Hardness ratios HR1=(hard-soft)/(hard+soft) (phot.flux;arith.ratio)
  (1)HR2  (n) Hardness ratio HR2=(hard2-hard1)/(hard2+hard1) (phot.flux;arith.ratio)
  (1)n_HR1 (char) [b] Note on HR1 (Note 3)   (meta.note)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)Note (char) [a] Note on coordinates and r90 (Note 1)   (meta.note)
  (1)Obs (char) ROSAT Observation identifier (meta.id;obs)
  (1)Off arcmin Off-axis angle (instr.offset)
  (1)r90 arcsec 90% statistical position uncertainty, the systematic error is ∼7" (stat.error)
  (1)RA2000 "h:m:s" (i) Right ascension (2000.0) (pos.eq.ra;meta.main)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (1)SRate ct/s Survey count rate from Pietsch et al. (1999, in prep.) (phot.count;em.X-ray)
  (2)l_Prob (char) Limit flag on Prob (meta.code.error)
  (2)l_Var (char) Limit flag on Var (meta.code.error)
  (2)Max ct/s (n) Detection maximum (phot.count;em.X-ray)
  (2)Min ct/s (n) Detection minimum (phot.count;em.X-ray)
  (2)Ng  Number of good detections, used for the variability study (meta.number)
  (2)Ns  Number of detections near WSS, used for the variability study (meta.number)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)Nu  Number of upper limits, used for the variability study (meta.number)
  (2)n_Var (char) [a] Note on Var (Note 1)   (meta.note)
  (2)Prob  (n) Probability for variability in σ (not given if higher than 6) (stat.fit.goodness;src.var)
  (2)Rem (char) Remarks (Note 2)   (meta.note)
  (2)Sup ct/s (n) Highest detection influenced by support structure (which gives a lower limit) (phot.count;em.X-ray)
  (2)Ul 10-2ct/s (n) Lowest upper limit (phot.count;em.X-ray)
  (2)Var  Variability (src.var.index)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
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