CfA VizieR . ADAC VizieR . CADC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . Beijing (Ch) 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

  Young stars south of Taurus-Auriga (Magazzu+ 1997)
Post annotation
1.J/A+AS/124/449/table1X-ray data for our sample (115 rows)
2.J/A+AS/124/449/table2(c)Closest optical counterparts. (115 rows)
3.J/A+AS/124/449/table3(c)Other optical counterparts observed. (16 rows)
4.J/A+AS/124/449/table4Results of spectroscopy of all counterparts (131 rows)

Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortJoin tables
more join
Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
   (ALL)ROSAT (char) (i) ROSAT (Cat. IX/11) name (;meta.main)
  (1)Counts  Number of counts in the broad ROSAT band (phot.count;em.X-ray)
  (1)e_Counts  rms uncertainty on Counts (stat.error)
  (1)Exp s Exposure time (time.duration;obs.exposure)
  (1)HR1  Hardness ratio 1 (phot.flux;arith.ratio)
  (1)e_HR1  rms uncertainty on HR1 (stat.error)
  (1)HR2  Hardness ratio 2 (phot.flux;arith.ratio)
  (1)e_HR2  rms uncertainty on HR2 (stat.error)
  (1)ML  Maximum likelihood of existence (stat.likelihood)
  (1)kTx keV Emission energy (typical error ±0.55keV) (

ALL cols
 (i)indexed column
  (1)log(NH) [cm-2] Absorbing foreground column density (typical error ±0.77, in log(NH) cm–2) (phys.columnDensity)
  (1)FX 10-13mW/m2X-ray flux (typical error±1.87x10–13mW/m2) (phot.flux;em.X-ray)
  (2+3+4)m_ROSAT (char) Multiplicity index on ROSAT name (meta.code.multip)
  (2+3)RAJ2000 "h:m:s" (i) Optical right ascension (J2000.0) (Note 1)   (pos.eq.ra;meta.main)
  (2+3)DEJ2000 "d:m:s" (i) Optical declination (J2000.0) (1) (pos.eq.dec;meta.main)
  (2)oRA arcsec Offset between X-ray and optical right ascension (pos.eq.ra;arith.diff)
  (2)oDE arcsec Offset between X-ray and optical declination (pos.eq.dec;arith.diff)
  (2+3)Vmag mag V magnitude (from the GSC II/143 or Simbad if n_Vmag=:) (phot.mag;em.opt.V)
  (2)n_Vmag (char) [:] : indicates that V magnitude is from Simbad (meta.note)
  (2)log(FX/FV)  X-ray to optical flux ratio (phot.flux;arith.ratio)
  (2)Prob  Discrimination probability (
  (2+3+4)Rem (char) Remarks (Note 2)   (meta.note)
  (3)Pos (char) Relative position to the counterpart listed in Table 2 (pos.eq)

ALL cols
 (i)indexed column
  (4)Tel (char) Telescope used (Note 1)   (;
  (4)EW(Halpha) 0.1nm (n)Hα equivalent width (negative when in emission) (spect.line.eqWidth)
  (4)n_EW(Halpha) (char) [af] Note on EW(Halpha) (Note 2)   (meta.note)
  (4)EW(Li) 0.1nm (n)Lithium 6708Å absorption equivalent width (spect.line.eqWidth)
  (4)n_EW(Li) (char) [:ny] Note on EW(Li) (Note 3)   (meta.note)
  (4)SpType (char) Spectral type (always luminosity class V unless otherwise noted) (src.spType)
  (4)Nature (char) Nature of object (see text) (src.class)

ALL cols
(n) indicates a possible blank or NULL column(i)indexed column
Adapt form
Display your selection only Reset to default columns
usage  Display UCD1+    UCD1  
elapse time 0

Thanks for acknowledging the VizieR Service
Rules of usage of VizieR data

© Université de Strasbourg/CNRS

    • Contact