VizieR

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

  
J/AJ/130/387
  SDSS-ROSAT AGN data (Strateva+, 2005)
ReadMe+ftp
2005AJ....130..387S
Similar Catalogs
Post annotation 		img(gal)
1.J/AJ/130/387/table1SDSS-ROSAT AGN data (155 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)
  SDSS (char) The SDSS identification (JHHMMSS.ss+DDMMSS.s) (meta.id.cross)
  f_SDSS (char) [12] ROSAT PSPC pointing or not (Note 1)   (meta.code)
  z  Spectroscopic redshift (src.redshift)
  ObsID (char) ID of the X-ray observation (meta.id;meta.main)
  Texp ks Effective exposure time (time.duration;obs.exposure)
  delta arcmin Off-axis angle (Note 2)   (instr.offset)
  Cts ct Total source counts corrected for background emission (phot.count;em.X-ray)
  logF250nm [Jy] Log of the 250nm flux density (Note 3)   (phot.flux;em.UV)
  logFX [mW/m2] Log of the 0.5-2keV flux in units of erg/cm2/s (Note 3)   (phot.flux;em.X-ray)
  log2keV [Jy] Log of the 2keV flux density (phot.flux;em.X-ray)
  Sp+Index  Optical/UV-to-X-ray index (Note 4)   (meta.code;spect.index)
  logL2keV [10-7W/Hz]Log of the 2keV luminosity density (Note 5)   (phys.luminosity;em.X-ray.soft)
  logL250nm [10-7W/Hz]Log of the 250nm luminosity density (Note 5)   (phys.luminosity;em.UV.200-300nm)
  imag mag SDSS PSF i-band magnitude (phot.mag;em.opt.I)
  g-i mag Relative g-i color index (Note 6)   (phot.color;em.opt.B;em.opt.I)
  Flag   [0/1] X-ray upper limit (0) or detection (Note 1)   (meta.code.error)
  Xray  Find out all X-ray in VizieR in a 1'-diameter. (meta.ref.url)
  _RA deg (i) Position (from SDSS name) (right ascension part) (pos.eq.ra;meta.main)
  _DE deg (i) Position (from SDSS name) (declination part) (pos.eq.dec;meta.main)

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