VizieR

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

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/684/A208
  Unassociated Fermi-LAT sources seen with eROSITA (Mayer+, 2024)
ReadMe+ftp
2024A&A...684A.208M
Similar Catalogs
image
Post annotation 		img(gal)
1.J/A+A/684/A208/catalogFull list of candidates with a probability of being a pulsar-type counterpart PiPSR>0.02[image] (909 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. ((unassigned);em.line;arith.grad;phys.veloc)
  plots  See the pdf file ((unassigned);(unassigned);(unassigned);pos.geocentric)
image
  Seq  Rank of X-ray source by match probability ((unassigned);(unassigned);(unassigned);spect.line.veloc)
  4eRASS (char) eROSITA source ID following IAU naming conventions (4eRASS JHHMMSS.s+DDMMSS) ((unassigned);meta.version;arith.diff;spect.line.veloc;arith)
  RA_ICRS deg Right ascension (ICRS) of X-ray source ((unassigned);(unassigned);(unassigned);(unassigned);arith)
  DE_ICRS deg Declination (ICRS) of X-ray source ((unassigned);(unassigned);(unassigned);(unassigned);arith)
  epos arcsec One-sigma positional error of X-ray source ((unassigned);meta.version;arith.diff;time.age;em.radio.12-30GHz)
  DetLike  X-ray detection likelihood ((unassigned);meta.version;arith.diff;pos.healpix;meta.main)
  ExtLike  X-ray extent likelihood ((unassigned);meta.version;arith.diff;pos.healpix;meta.main)
  CR ct/s X-ray count rate in 0.2-2.3keV ((unassigned);meta.version;arith.diff;time.duration;(unassigned);(unassigned))
  FeRASS mW/m2 X-ray source flux in 0.2-2.3keV, determined via an energy conversion factor from the count rate ((unassigned);(unassigned);(unassigned);meta.abstract;(unassigned);(unassigned))

ALL cols		    
 (i)indexed column
  Name4FGL (char) Name of gamma-ray source in 4FGL-DR4 catalog ((unassigned);meta.version;arith.diff;spect.line.veloc)
  Class2-4FGL (char) Class of low-probability association of gamma-ray source in 4FGL-DR4 catalog ((unassigned);meta.version;arith.diff;pos.galactic)
  Assoc2-4FGL (char) Low-probability association of gamma-ray source in 4FGL-DR4 catalog ((unassigned);meta.version;arith.diff;phys.polarization.circular;meta.main)
  RA4deg deg 4FGL right ascension (ICRS) of gamma-ray source ((unassigned);meta.version;arith.diff;(unassigned))
  DE4deg deg 4FGL declination (ICRS) of gamma-ray source ((unassigned);(unassigned);(unassigned);(unassigned))
  amaj4FGL arcmin Semi-major axis of gamma-ray 95% error ellipse ((unassigned);meta.version;arith.diff;(unassigned);(unassigned))
  bmin4FGL arcmin Semi-minor axis of gamma-ray 95% error ellipse ((unassigned);(unassigned);(unassigned);(unassigned);(unassigned))
  phi4FGL deg Position angle of gamma-ray error ellipse on the sky ((unassigned);(unassigned);(unassigned);instr.spect;(unassigned))
  nu4FGL deg-2 Density of eRASS:4 X-ray sources within a 2 deg radius around gamma-ray source ((unassigned);meta.version;arith.diff;phys.mol;meta.main)
  ExpField  Expectation value for the number of X-ray chance alignments (denominator in Eq. 4) ((unassigned);meta.version;arith.diff;src.var)
  F4FGL mW/m2 gamma-ray source flux in the range 100 MeV - 100 GeV ((unassigned);(unassigned);(unassigned);phys.atmol.sWeight.nuclear;(unassigned);(unassigned))
  PriorPSR  Prior probability for a source to be a pulsar, rather than blazar, based on its gamma-ray properties ((unassigned);(unassigned);(unassigned);phys.polarization.circular;meta.main)
  Prioryoungold  Prior probability for a source to be a young pulsar, rather than millisecond pulsar, based on its gamma-ray properties (time.equinox;instr.beam;stat.min;phys.polarization.circular;meta.main)

ALL cols		    
 (i)indexed column
  dmahalanobis  Mahalanobis distance, i.e. the distance between X-ray and gamma-ray source positions, normalized by the total positional error in the given direction ((unassigned);meta.version;arith.diff;em.UV.10-50nm)
  BFpos  Purely positional Bayes factor of the association, i.e. value of Eq. 4 with c = 1. ((unassigned);meta.version;arith.diff;em.radio.6-12GHz)
  logFluxratio  Logarithmic gamma-to-X-ray flux ratio (time.equinox;(unassigned);arith.grad;meta.abstract;instr.offset)
  PriorfrAGN  Likelihood ratio, assuming AGN nature, of having a match rather than a background X-ray source based on only X-ray and gamma-ray fluxes (Eqs. 6 and 7) ((unassigned);instr.calib;stat.min;pos.healpix;meta.main)
  PriorfrYNG  Likelihood ratio, assuming young pulsar nature, of having a match rather than a background X-ray source based on only X-ray and gamma-ray fluxes (Eqs. 6 and 7) ((unassigned);(unassigned);(unassigned);pos.healpix;meta.main)
  PriorfrMSP  Likelihood ratio, assuming millisecond pulsar nature, of having a match rather than a background X-ray source based on only X-ray and gamma-ray fluxes (Eqs. 6 and 7) ((unassigned);em.line;arith.grad;pos.healpix;meta.main)
  PiPSR  Combined posterior probability (Eq. 8) for the given X-ray and gamma-ray source to be matched, and to be of pulsar nature ((unassigned);(unassigned);(unassigned);phys.polarization.circular;meta.main)
  PiAGN  Combined posterior probability (Eq. 8) for the given X-ray and gamma-ray source to be matched, and to be of AGN (blazar) nature ((unassigned);(unassigned);(unassigned);phys.polarization.circular;meta.main)
  PiYNG  Combined posterior probability (Eq. 8) for the given X-ray and gamma-ray source to be matched, and to be of young pulsar nature ((unassigned);(unassigned);(unassigned);phys.polarization.circular;meta.main)
  PiMSP  Combined posterior probability (Eq. 8) for the given X-ray and gamma-ray source to be matched, and to be of millisecond pulsar nature ((unassigned);(unassigned);(unassigned);phys.polarization.circular;meta.main)
  Pi  Combined posterior probability (Eq. 8) for the given X-ray and gamma-ray source to be matched ((unassigned);meta.version;arith.diff;phys.polarization.circular;meta.main)
  Comment (char) Comment on the match, for instance, on possible alternative nature of the X-ray source ((unassigned);meta.version;arith.diff;phys.veloc.orbital)
  Simbad  ask the Simbad data-base about this object ((unassigned);(unassigned);(unassigned);pos.geocentric)

ALL cols		    
 (i)indexed column
Adapt form
 Display your selection only Reset to default columns
usage  Display UCD1+    UCD1  

The following problems were encountered in this VizieR run:
****Error execute query: UPDATE METAstat set nother=nother+1, tother=846497623 Where phase=3 and catid=36840208
**** 
**** --POSTGRES MSG db=1
**** Report from: stdb_pg,     Status: STDB_ERR 
****ERROR:  invalid page in block 0 of relation base/16403/6104 
****ERROR:  invalid page in block 0 of relation base/16403/6104
If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR1151452.err (2026-10-28T10:13:41)
-3
-source=J/A+A/684/A208/catalog
-ref=VIZ6ae1cad61191dc
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