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
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/353/1044
  ROSAT obs. of T Tauri stars in MBM 12 (Hearty+, 2000)
ReadMe+ftp
2000A&A...353.1044H
Similar Catalogs
Post annotation 		img(gal)
1.J/A+A/353/1044/table4ROSAT detected X-ray sources in the direction (80 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.
  Seq  Sequential number of the X-ray source (Note 1)   
  m_Seq (char) Multiplicity index when several possible optical counterparts
  Survey (char) "RASS" (ROSAT All Sky Survey) or "RPOS" (Pointed Observation sources)
  Name (char) Name (Note 2)   
  RAJ2000 "h:m:s" X-ray right ascension (J2000)
  DEJ2000 "d:m:s" X-ray declination (J2000)
  ML  Maximum Likelihood for Existence
  e_ML  rms uncertainty on ML
  CountRate ct/s X-ray count rate in the 0.1-2.0 keV band
  HR1  X-ray hardness ratio 1

ALL cols		    
 (i)indexed column
  e_HR1  rms uncertainty on HR1
  HR2  (n) X-ray hardness ratio 2
  e_HR2  (n) rms uncertainty on HR2
  Vmag mag (n) Optical counterpart visual magnitude
  n_Vmag (char) [:] Note on Vmag (Note 3)   
  log(fx/fv)  (n) X-ray to optical flux ratio
  SpT (char) Optical counterpart spectral type
  W(Ha) 0.1nm (n) Hα equivalent width
  n_W(Ha) (char) [f] f: filled
  W(Li) 0.1nm (n) Lithium equivalent width
  Comments (char) Comments on individual sources

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