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/mstarsParameters of M stars catalog observed in LAMOST low-resolution spectral survey DR7 (Tables 2 and 3) (738476 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)
  MR  (n)Number of medium resolution measurements for this star (link to Table 5) ((unassigned);meta.version;arith.diff;pos.geocentric)
  LAMOST (char) (i) LAMOST identifier (JHHMMSS.ss+DDMMSS.s) ((unassigned);(unassigned);stat.min;spect.line.veloc;arith)
  Np  (n)Number of repeated low resolution measurements for this star ((unassigned);(unassigned);(unassigned);pos.geocentric)
  HJD d (n)(i) [55858.8/58643.11] Heliocentric Julian Date of observation; HJD-2400000 (Note G1)   ((unassigned);(unassigned);(unassigned);pos.centroid;meta.main)
  Exp s (n) [500/9000] Exposure time ((unassigned);(unassigned);(unassigned);pos.eq.dec)
  SpT (char) Spectral type ((unassigned);(unassigned);(unassigned);pos.posAng;meta.main)
  SNr   [-9999/999] Signal to noise in r filter ((unassigned);meta.version;arith.diff;meta.abstract;meta.main)
  RVel km/s (n) [-9999/93341] Radial velocity ((unassigned);meta.version;arith.diff;spect.index;arith.diff;meta.main)
  e_RVel km/s (n) [0/999619] Uncertainty in RVel ((unassigned);(unassigned);(unassigned);time.age;(unassigned);meta.main)
  SDSS (char) SDSS DR 12 identifier (JHHMMSS.ss+DDMMSS.s) ((unassigned);(unassigned);(unassigned);spect.line.veloc)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  umag mag (n) [10.3/32.6] Apparent SDSS u band AB magnitude ((unassigned);meta.version;arith.diff;stat.filling;(unassigned);(unassigned))
  e_umag mag (n) [0/82] Uncertainty in umag ((unassigned);meta.version;arith.diff;time.age;stat.probability)
  gmag mag (n) [7.9/36.1] Apparent SDSS g band AB magnitude ((unassigned);meta.version;arith.diff;stat.filling;(unassigned);(unassigned))
  e_gmag mag (n) [0/68] Uncertainty in gmag ((unassigned);meta.version;arith.diff;time.age;stat.probability)
  rmag mag (n) [6.5/31.1] Apparent SDSS r band AB magnitude ((unassigned);meta.version;arith.diff;stat.filling;(unassigned);(unassigned))
  e_rmag mag (n) [0/37] Uncertainty in rmag ((unassigned);meta.version;arith.diff;time.age;stat.probability)
  imag mag (n) [6.1/37.6] Apparent SDSS i band AB magnitude ((unassigned);meta.version;arith.diff;stat.filling;(unassigned);(unassigned))
  e_imag mag (n) [0/58] Uncertainty in imag ((unassigned);(unassigned);(unassigned);time.age;stat.probability)
  zmag mag (n) [5/32.6] Apparent SDSS z band AB magnitude ((unassigned);meta.version;arith.diff;stat.filling;(unassigned);(unassigned))
  e_zmag mag (n) [0/59] Uncertainty in zmag ((unassigned);meta.version;arith.diff;time.age;stat.probability)
  EWHa 0.1nm (n) [-984/7873] H{alpha} equivalent width; Angstroms ((unassigned);meta.version;arith.diff;phys.at.moment.magnetic;meta.main)
  SNHa  (n) [-753/9856] Signal to noise of H{alpha} line ((unassigned);meta.version;arith.diff;meta.abstract;meta.main)
  e_EWHa 0.1nm (n) [0/9975] Uncertainty in EWHa ((unassigned);meta.version;arith.diff;time.age;meta.main)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  Height 0.1nm (n) [0/1104] Height of H{alpha} ((unassigned);meta.version;arith.diff;phys.angArea;(unassigned);(unassigned))
  E (char) H{alpha} activity criteria; (Y)es or (N)o ((unassigned);meta.version;arith.diff;pos.eq.dec)
  EWCaH 0.1nm (n) [-9732/93048] CaII H line equivalent width; in Angstrom units ((unassigned);(unassigned);(unassigned);phys.at.moment.magnetic;meta.main)
  e_EWCaH 0.1nm (n) [0.003/996907] Uncertainty in EWCaH ((unassigned);(unassigned);(unassigned);time.age;meta.main)
  f_EWCaH (char) Activity flag for EWCaH (Note 1)   ((unassigned);(unassigned);(unassigned);pos.eq.dec)
  EWHb 0.1nm (n) [-945/7740] H{beta} line equivalent width; in Angstrom units ((unassigned);(unassigned);(unassigned);phys.at.moment.magnetic;meta.main)
  e_EWHb 0.1nm (n) [0/9990] Uncertainty in EWHb ((unassigned);(unassigned);(unassigned);time.age;meta.main)
  f_EWHb (char) Activity flag for EWHb (Note 1)   ((unassigned);meta.version;arith.diff;pos.eq.dec)
  EWHg 0.1nm (n) [-9397/98764] H{gamma} line equivalent width; in Angstrom units ((unassigned);(unassigned);(unassigned);phys.at.moment.magnetic;meta.main)
  e_EWHg 0.1nm (n) [0.001/1546892] Uncertainty in EWHg ((unassigned);meta.version;arith.diff;time.age;meta.main)
  f_EWHg (char) Activity flag for EWHg (Note 1)   ((unassigned);(unassigned);(unassigned);pos.eq.dec)
  EWHd 0.1nm (n) [-1000/9981] H{delta} line equivalent width; in Angstrom units ((unassigned);meta.version;arith.diff;phys.at.moment.magnetic;meta.main)
  e_EWHd 0.1nm (n) [0.002/99944] Uncertainty in EWHd ((unassigned);meta.version;arith.diff;time.age;meta.main)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  f_EWHd (char) Activity flag for EWHd (Note 1)   ((unassigned);meta.version;arith.diff;pos.eq.dec)
  EWHeI 0.1nm (n) [-8872/48729] HeI D3 line equivalent width; in Angstrom units (phys.veloc.ang;meta.record;arith.factor;phys.at.moment.magnetic;meta.main)
  e_EWHeI 0.1nm (n) [0/9997] Uncertainty in EWHeI ((unassigned);(unassigned);(unassigned);time.age;meta.main)
  f_EWHeI (char) Activity flag for EWHeI ((unassigned);meta.version;arith.diff;pos.eq.dec)
  EWCaII-1 0.1nm (n) [-815931/77628000] CaII 8498Å line equivalent width; in Angstrom units ((unassigned);(unassigned);(unassigned);phys.at.moment.magnetic;meta.main)
  e_EWCaII-1 0.1nm (n) [0/48926900] Uncertainty in EWCaII-1 ((unassigned);meta.version;arith.diff;time.age;meta.main)
  f_EWCaII-1 (char) Activity flag for EWCaII-1 ((unassigned);(unassigned);(unassigned);pos.eq.dec)
  EWCaII-2 0.1nm (n) [-635707/749992000] CaII 8542Å line equivalent width; in Angstrom units ((unassigned);meta.version;arith.diff;phys.at.moment.magnetic;meta.main)
  e_EWCaII-2 0.1nm (n) [0/87080000] Uncertainty in EWCaII-2 ((unassigned);meta.version;arith.diff;time.age;meta.main)
  f_EWCaII-2 (char) Activity flag for EWCaII-2 ((unassigned);meta.version;arith.diff;pos.eq.dec)
  EWCaII-3 0.1nm (n) [-812/80842] CaII 8662Å line equivalent width; in Angstrom units ((unassigned);phys.abund.Y;(unassigned);phys.at.moment.magnetic;meta.main)
  e_EWCaII-3 0.1nm (n) [0/49267000] Uncertainty in EWCaII-3 ((unassigned);(unassigned);(unassigned);time.age;meta.main)
  f_EWCaII-3 (char) Activity flag for EWCaII-3 ((unassigned);meta.version;arith.diff;pos.eq.dec)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  EWTiO5 0.1nm (n) [-900/999995] TiO5 molecular line equivalent width; in Angstrom units (spect.resolution;meta.record;arith.factor;phys.at.moment.magnetic;meta.main)
  e_EWTiO5 0.1nm (n) [0/1316216] Uncertainty in EWTiO5 ((unassigned);meta.version;arith.diff;time.age;meta.main)
  EWCaH1 0.1nm (n) [-3580/6399] CaH1 molecular line equivalent width; in Angstrom units ((unassigned);(unassigned);(unassigned);phys.at.moment.magnetic;meta.main)
  e_EWCaH1 0.1nm (n) [0/970780] Uncertainty in EWCaH1 ((unassigned);meta.version;arith.diff;time.age;meta.main)
  EWCaH2 0.1nm (n) [-1205/730] CaH2 molecular line equivalent width; in Angstrom units ((unassigned);(unassigned);(unassigned);phys.at.moment.magnetic;meta.main)
  e_EWCaH2 0.1nm (n) [0/99769] Uncertainty in EWCaH2 ((unassigned);(unassigned);(unassigned);time.age;meta.main)
  EWCaH3 0.1nm (n) [-837/1777] CaH3 molecular line equivalent width; in Angstrom units ((unassigned);(unassigned);(unassigned);phys.at.moment.magnetic;meta.main)
  e_EWCaH3 0.1nm (n) [0/42079819] Uncertainty in EWCaH3 ((unassigned);(unassigned);(unassigned);time.age;meta.main)
  DR4+5  Display the LAMOST DR4 (V/153) and DR5 (V/164) data within 0.5" ((unassigned);(unassigned);(unassigned);pos.geocentric)
  Sloan  Display the online SDSS-DR14 data for the nearest object ((unassigned);(unassigned);(unassigned);pos.geocentric)
  _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);(unassigned);(unassigned);(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=846433721 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/VR67300.err (2026-10-27T16:28:40)
-3
-source=J/ApJS/253/19/mstars
-ref=VIZ6ae0d138106e4
elapse time 1