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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NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  
J/A+A/675/A44
  Extragalactic fast X-ray transient cand. (Quirola-Vasquez+, 2023)
ReadMe+ftp
2023A&A...675A..44Q
Similar Catalogs
Post annotation 		img(gal)
1.J/A+A/675/A44/table3Properties of the extragalactic FXT candidates detected and/or discussed in this work, ordered by date. (8 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)
  FXT   [15/22] Shorthand identifier (FXT NN) used throughout this work (meta.id)
  XRT (char) X-ray transient identifier (XRT date), plus previous name when available (meta.id;meta.main)
  n_XRT (char) [+] Note on XRT (Note 1)   (meta.note)
  ObsID  Chandra observation ID (meta.id;obs)
  Texp ks Chandra observation exposure time (time.duration;obs)
  Date (char) Chandra observation date (time.epoch;obs)
  T90 ks T90 duration, which measures the time over which the source emits the central 90% (i.e., from % to 95%) of its total measured counts, in units of ks (time.duration;arith.ratio)
  e_T90 ks Error on T90 (lower limit) (stat.error)
  E_T90 ks Error on T90 (upper limit) (stat.error;stat.max)
  RAJ2000 deg (i) Right Ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) Declination (J2000) (pos.eq.dec;meta.main)
  OffAxis arcmin Off-axis angle of the FXT candidates, with respect to the Chandra aimpoint (instr.offset)
  ePos arcsec Estimated 2σ X-ray positional uncertainty (see Sect. 2.5). (stat.error;pos)
  HR  Hardness ratio (Note 2)   (phot.flux;arith.ratio)
  e_HR  Hardness ratio 1σ uncertainty (stat.error)
  S/N  Approximate signal-to-noise ratio (S/N) (stat.snr)

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