VizieR

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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/ApJS/253/19
  Halpha and other EWs of LAMOST M-type stars (Zhang+, 2021)
ReadMe+ftp
2021ApJS..253...19Z
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJS/253/19/table6Parameters of M stars catalog with repeated LAMOST low-resolution observations (85992 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);(unassigned);(unassigned);phys.veloc)
  Seq   [1/85992] Internal object number ((unassigned);meta.version;arith.diff;spect.line.veloc)
  LAMOST (char) LAMOST identifier (JHHMMSS.ss+DDMMSS.s) ((unassigned);(unassigned);stat.min;spect.line.veloc;arith)
  SpT (char) Spectral type ((unassigned);meta.version;arith.diff;pos.posAng;meta.main)
  Rep   [2/30] The repeated number of objects ((unassigned);(unassigned);(unassigned);src.var)
  EWHa-Max 0.1nm [-86/1363] Maximum H{alpha} equivalent width; in Angstrom units ((unassigned);(unassigned);(unassigned);phys.at.moment.magnetic;pos.phaseAng;(unassigned);(unassigned))
  e_EWHa-Max 0.1nm [0/8484] Uncertainty in EWHa-Max ((unassigned);(unassigned);(unassigned);time.age;meta.main)
  EWHa-Min 0.1nm [-498/318] Minimum H{alpha} equivalent width; in Angstrom units ((unassigned);meta.version;arith.diff;phys.at.moment.magnetic;arith.ratio;(unassigned);(unassigned))
  e_EWHa-Min 0.1nm [0/8928] Uncertainty in EWHa-Min ((unassigned);(unassigned);(unassigned);time.age;meta.main)
  Ratio   [-79107/24178] The EWHa-Max/EWHa-Min ratio ((unassigned);(unassigned);(unassigned);phys.at.moment.magnetic;instr.bandpass)
  Diff   [0/1360] The EWHa-Max - EWHa-Min difference ((unassigned);(unassigned);(unassigned);phys.at.moment.magnetic;instr.bandpass)
  e_Diff   [0.002/8928] Uncertainty in Diff ((unassigned);meta.version;arith.diff;time.age;instr.bandpass)
  Var (char) [Yes/No ] Variation of H{alpha} line? ((unassigned);(unassigned);(unassigned);pos.eq.dec;pos.cartesian;meta.main)
  _RA deg (i) Positions from LAMOST names (right ascension part) ((unassigned);meta.version;arith.diff;(unassigned);arith)
  _DE deg (i) Positions from LAMOST names (declination part) ((unassigned);(unassigned);(unassigned);(unassigned);arith)

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=846427590 Where phase=3 and catid=22530019
**** 
**** --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/VR3473215.err (2026-10-27T14:46:27)
-3
-source=J/ApJS/253/19/table6
-ref=VIZ6ae0b94534ff3f
elapse time 3