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/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/table5Parameters of M stars catalog from LAMOST medium-resolution survey, the parameter of H{alpha} line and its variations in short and long time scales (80565 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)
  LR  (n)Display low resolution measurements for this star ((unassigned);meta.version;arith.diff;pos.geocentric)
  LAMOST (char) LAMOST identifier (JHHMMSS.ss+DDMMSS.s) ((unassigned);(unassigned);stat.min;spect.line.veloc;arith)
  SpT (char) Spectral type ((unassigned);instr.det.psf;arith.grad;pos.posAng;meta.main)
  HJD min (n) [83555758/84454742] Heliocentric Julian Date in minutes ((unassigned);phys.polarization.stokes;arith.factor;pos.centroid;meta.main)
  Exp s (n) [319/1800] Exposure time ((unassigned);(unassigned);(unassigned);pos.eq.dec)
  SN   [0/999] Signal to noise ratio ((unassigned);(unassigned);(unassigned);meta.abstract;meta.main)
  EWHa 0.1nm [-578/571] Equivalent width of H{alpha}; in Angstrom units ((unassigned);meta.version;arith.diff;pos.eq.dec)
  e_EWHa 0.1nm [0/241958] Uncertainty in EWHa ((unassigned);meta.version;arith.diff;time.age;meta.main)
  Em (char) [Y/N] Emission of H{alpha} line? (No=absorption) ((unassigned);(unassigned);(unassigned);pos.eq.dec)
  L (char) [Y/N] H{alpha} variation on long time scale? ((unassigned);(unassigned);(unassigned);pos.eq.dec)
  S (char) [Y/N] H{alpha} variation on short time scale? ((unassigned);meta.version;arith.diff;pos.eq.dec)
  _RA deg (i) Positions from LAMOST names (right ascension part) ((unassigned);(unassigned);(unassigned);(unassigned);arith)
  _DE deg (i) Positions from LAMOST names (declination part) ((unassigned);phys.luminosity.fun;arith.grad;(unassigned);arith)

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  

The following problems were encountered in this VizieR run:
****Error execute query: UPDATE METAstat set nother=nother+1, tother=846427586 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/VR3473039.err (2026-10-27T14:46:24)
-3
-source=J/ApJS/253/19/table5
-ref=VIZ6ae0b94134fe8f
elapse time 2