VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

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Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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J/MNRAS/318/1073
  Hard spectrum ROSAT sources. I. (Page+, 2000)
ReadMe+ftp
2000MNRAS.318.1073P
Similar Catalogs
Post annotation 		img(gal)
1.J/MNRAS/318/1073/table2Hard source catalogue (147 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)
  RXJ (char) Source name based on J2000 coordinates of ROSAT source from PSS (Note 1)   (meta.id;meta.main)
  ROR (char) ROSAT observation in which source was detected (obs.param;obs)
  ExpTime ks ROSAT PSPC exposure time after good time screening (time.duration;obs.exposure)
  OffAxis arcmin Off-axis angle of source (instr.offset)
  ePos arcsec Positional uncertainty of source from PSS (stat.error)
  sigma  PSS significance of source above background level (stat.fit.goodness)
  PSF  Spread function to the source radial profile in 5" bins out to 1', from a fit of the model PSPC point (spect.dopplerVeloc)
  Rad arcsec Source circle radius for extraction of the three-colour spectrum (stat.fit.param)
  C1 ct Number of counts in PSPC channels 11-41 (0.1-0.4keV) within the source circle (phot.count;em.X-ray)
  C2 ct Number of counts in PSPC channels 52-90 (0.5-0.9keV] within the source circle (phot.count;em.X-ray)

ALL cols		    
 (i)indexed column
  C3 ct Number of counts in PSPC channels 91-201 (0.9-2.0 keV) within the source circle (phot.count;em.X-ray)
  B1 ct Expected number of background counts in PSPC channels 11-41 within the source circle (meta.number)
  B2 ct Expected number of background counts in PSPC channels 52-90 within the source circle (meta.number)
  B3 ct Expected number of background counts in PSPC channels 91-201 within the source circle (meta.number)
  alpha  Fitted power-law spectral slope (spect.index)
  E_alpha  68% uncertainty in alpha (upper limit) (stat.error;stat.max)
  e_alpha  68% uncertainty in alpha (lower limit) (stat.error;pos.eq.ra)
  Prob  Probability of source having spectral slope alpha<(harder than) 0.5 (arith.grad;pos.eq.ra)
  S0.5-2 10-17W/m20.5-2keV flux (Note 3)   (phot.flux;em.X-ray)
  E_S0.5-2 10-17W/m268% uncertainty on S0.5-2 (upper limit) (Note 3)   (stat.error;stat.max)
  e_S0.5-2 10-17W/m268% uncertainty on S0.5-2 (lower limit) (Note 3)   (stat.error)
  Flag (char) [SI] Optical counterpart flag (Note 2)   (meta.code.error)
  2RXP  Display the PSPC data (2RXP, Cat. IX/30) (meta.ref.url)
  _RA deg (i) Position (derived from RXJ name) (right ascension part) (pos.eq.ra;meta.main)
  _DE deg (i) Position (derived from RXJ name) (declination part) (pos.eq.dec;meta.main)

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