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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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J/A+A/458/245
  Obs. of 2 Unidentified Gamma-ray Sources (La Palombara+, 2006)
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img(gal)
1.J/A+A/458/245/table1(c)Main characteristics of the 8 EPIC observations of 3EG J0616-3310 (Obs=1-4) & 3EG J1249-8330 (Obs=5-8) (chart) (8 rows)
2.J/A+A/458/245/table7Main characteristics of the X-ray sources with no candidate optical counterpart and log(FX/Fopt)≳2 (chart) (9 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
   (ALL)Obs  EPIC field sequential reference number (meta.id;obs.field)
  (1)Rev  Revolution number of XMM (meta.id;obs)
  (1)ObsDate "Y:M:D" (n)Observation date (time.epoch)
  (1)ObsTime "h:m:s" (n)Observation time (hh:mm:ss) (time.epoch)
  (1)RAJ2000 "h:m:s" (i) Right ascension (J2000) (pos.eq.ra;meta.main)
  (1)DEJ2000 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
  (1)PN ks Exposure time for PN instrument (time.duration;obs.exposure)
  (1)MOS1 ks Exposure time for MOS1 instrument (time.duration;obs.exposure)
  (1)MOS2 ks Exposure time for MOS2 instrument (time.duration;obs.exposure)
  (1)NH 10+20cm-2Hydrogen column density (phys.columnDensity)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)Det  Number of detected sources (meta.number)
  (2)XMMU (char) XMMU designation (JHHMMSS.s+DDMMSS) (meta.id;meta.main)
  (2)Bands (char) Detection bands (instr.bandpass)
  (2)l_kTbt (char) [<≥ ] Limit flag on kTbt (meta.code.error)
  (2)kTbt keV Range of possible kT temperature for thermal bremsstrahlung spectrum (phys.temperature)
  (2)kTbt2 keV (n) Range of possible kT temperature for thermal bremsstrahlung spectrum (phys.temperature)
  (2)l_kTbb (char) [<≥ ] Limit flag on kTbb (meta.code.error)
  (2)kTbb keV Range of possible kT temperature for thermal blackbody spectrum (phys.temperature)
  (2)kTbb2 keV (n) Range of possible kT temperature for thermal blackbody spectrum (phys.temperature)
  (2)l_Gamma (char) [<≥ ] Limit flag on Gamma (meta.code.error)
  (2)Gamma keV Range of photon index for a power law spectrum (meta.code;spect.index)
  (2)Gamma2 keV (n) Range of photon index for a power law spectrum (spect.index)
  (2)Flux 10-17W/m2Source flux in 0.3-10keV energy range (phot.flux;em.X-ray)
  (2)e_Flux 10-17W/m2rms uncertainty on Flux (stat.error;phot.flux)
  (2)log(FX/Fopt) [-] Lower limit of X-ray-to-optical flux ratio (phot.flux;arith.ratio)
  (2)e_log(FX/Fopt) [-] rms uncertainty on log(FX/Fopt) (stat.error)

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