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Simple Target
List Of Targets
Fast Xmatch with large catalogs or Simbad
Target
Name (resolved by
Sesame
) or
Position
:
J2000
B1975
B1950
B1900
B1875
B1855
Galactic
Supergal.
Ecl.J2000
Target dimension:
deg
arcmin
arcsec
NB: The epoch used for the query is the original epoch of the table(s)
Radius
Box size
J/ApJS/253/19
-1
Halpha and other EWs of LAMOST M-type stars (Zhang+, 2021)
ReadMe+ftp
2021ApJS..253...19Z
Similar Catalogs
Post annotation
1.
J/ApJS/253/19/mstars
(c)
Parameters of M stars catalog observed in LAMOST low-resolution spectral survey DR7 (Tables 2 and 3)
(738476 rows)
meta
J/ApJS/253/19/mstars
2.
J/ApJS/253/19/table5
(c)
Parameters of M stars catalog from LAMOST medium-resolution survey, the parameter of Hα line and its variations in short and long time scales
(80565 rows)
meta
J/ApJS/253/19/table5
3.
J/ApJS/253/19/table6
(c)
Parameters of M stars catalog with repeated LAMOST low-resolution observations
(85992 rows)
meta
J/ApJS/253/19/table6
Xmatch is
on
off
Radius:
arcsec
Master table:
all - matching rows only
J/ApJS/253/19/mstars
J/ApJS/253/19/table5
J/ApJS/253/19/table6
Simple Constraint
List Of Constraints
Query by
Constraints
applied on Columns
(
Output Order:
+
-
)
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Column
Constraint
Explain
(
UCD
)
(ALL)
recno
Record number assigned by the VizieR team. Should Not be used for identification.
(
meta.record
)
(
RECORD
)
(1)
MR
(n)
Number of medium resolution measurements for this star (link to Table 5)
(
meta.ref.url
)
(
DATA_LINK
)
(ALL)
LAMOST
(char)
(i)
LAMOST identifier (JHHMMSS.ss+DDMMSS.s)
(
meta.id;meta.main
)
(
ID_MAIN
)
(1)
Np
(n)
Number of repeated low resolution measurements for this star
(
meta.ref.url
)
(
DATA_LINK
)
(1)
HJD
d
(n)
(i)
[55858.8/58643.11] Heliocentric Julian Date of observation; HJD-2400000
(Note G1)
(
time.epoch
)
(
TIME_DATE
)
(1+2)
Exp
s
(n)
[500/9000] Exposure time
(
meta.code
)
(
CODE_MISC
)
(ALL)
SpT
(char)
Spectral type
(
src.spType
)
(
SPECT_TYPE_MK
)
(1)
SNr
[-9999/999] Signal to noise in r filter
(
stat.snr
)
(
SPECT_S/N
)
(1)
RVel
km/s
(n)
[-9999/93341] Radial velocity
(
phys.veloc;pos.heliocentric
)
(
VELOC_HC
)
(1)
e_RVel
km/s
(n)
[0/999619] Uncertainty in RVel
(
stat.error;spect.dopplerVeloc
)
(
ERROR
)
(1)
SDSS
(char)
SDSS DR 12 identifier (JHHMMSS.ss+DDMMSS.s)
(
meta.id
)
(
ID_ALTERNATIVE
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
(1)
umag
mag
(n)
[10.3/32.6] Apparent SDSS u band AB magnitude
(
phot.mag;em.opt.U
)
(
PHOT_SDSS_U
)
(1)
e_umag
mag
(n)
[0/82] Uncertainty in umag
(
stat.error;phot.mag
)
(
ERROR
)
(1)
gmag
mag
(n)
[7.9/36.1] Apparent SDSS g band AB magnitude
(
phot.mag;em.opt.B
)
(
PHOT_SDSS_G
)
(1)
e_gmag
mag
(n)
[0/68] Uncertainty in gmag
(
stat.error;phot.mag
)
(
ERROR
)
(1)
rmag
mag
(n)
[6.5/31.1] Apparent SDSS r band AB magnitude
(
phot.mag;em.opt.R
)
(
PHOT_SDSS_R
)
(1)
e_rmag
mag
(n)
[0/37] Uncertainty in rmag
(
stat.error;phot.mag
)
(
ERROR
)
(1)
imag
mag
(n)
[6.1/37.6] Apparent SDSS i band AB magnitude
(
phot.mag;em.opt.I
)
(
PHOT_SDSS_I
)
(1)
e_imag
mag
(n)
[0/58] Uncertainty in imag
(
stat.error;phot.mag
)
(
ERROR
)
(1)
zmag
mag
(n)
[5/32.6] Apparent SDSS z band AB magnitude
(
phot.mag;em.opt.I
)
(
PHOT_SDSS_Z
)
(1)
e_zmag
mag
(n)
[0/59] Uncertainty in zmag
(
stat.error;phot.mag
)
(
ERROR
)
(1+2)
EWHa
0.1nm
(n)
[-984/7873] Hα equivalent width; Angstroms
(
spect.line.eqWidth
)
(
CODE_MISC
)
(1)
SNHa
(n)
[-753/9856] Signal to noise of Hα line
(
stat.snr
)
(
SPECT_S/N
)
(1+2)
e_EWHa
0.1nm
(n)
[0/9975] Uncertainty in EWHa
(
stat.error
)
(
ERROR
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
(1)
Height
0.1nm
(n)
[0/1104] Height of Hα
(
spect.line;em.line.Halpha
)
(
SPECT_INDEX_HALPHA
)
(1)
E
(char)
Hα activity criteria; (Y)es or (N)o
(
meta.code
)
(
CODE_MISC
)
(1)
EWCaH
0.1nm
(n)
[-9732/93048] CaII H line equivalent width; in Angstrom units
(
spect.line.eqWidth
)
(
SPECT_EQ-WIDTH
)
(1)
e_EWCaH
0.1nm
(n)
[0.003/996907] Uncertainty in EWCaH
(
stat.error
)
(
ERROR
)
(1)
f_EWCaH
(char)
Activity flag for EWCaH
(Note 1)
(
meta.code
)
(
CODE_MISC
)
(1)
EWHb
0.1nm
(n)
[-945/7740] Hβ line equivalent width; in Angstrom units
(
spect.line.eqWidth
)
(
SPECT_EQ-WIDTH
)
(1)
e_EWHb
0.1nm
(n)
[0/9990] Uncertainty in EWHb
(
stat.error
)
(
ERROR
)
(1)
f_EWHb
(char)
Activity flag for EWHb
(Note 1)
(
meta.code
)
(
CODE_MISC
)
(1)
EWHg
0.1nm
(n)
[-9397/98764] Hγ line equivalent width; in Angstrom units
(
spect.line.eqWidth
)
(
SPECT_EQ-WIDTH
)
(1)
e_EWHg
0.1nm
(n)
[0.001/1546892] Uncertainty in EWHg
(
stat.error
)
(
ERROR
)
(1)
f_EWHg
(char)
Activity flag for EWHg
(Note 1)
(
meta.code
)
(
CODE_MISC
)
(1)
EWHd
0.1nm
(n)
[-1000/9981] Hδ line equivalent width; in Angstrom units
(
spect.line.eqWidth
)
(
SPECT_EQ-WIDTH
)
(1)
e_EWHd
0.1nm
(n)
[0.002/99944] Uncertainty in EWHd
(
stat.error
)
(
ERROR
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
(1)
f_EWHd
(char)
Activity flag for EWHd
(Note 1)
(
meta.code
)
(
CODE_MISC
)
(1)
EWHeI
0.1nm
(n)
[-8872/48729] HeI D3 line equivalent width; in Angstrom units
(
spect.line.eqWidth
)
(
SPECT_EQ-WIDTH
)
(1)
e_EWHeI
0.1nm
(n)
[0/9997] Uncertainty in EWHeI
(
stat.error
)
(
ERROR
)
(1)
f_EWHeI
(char)
Activity flag for EWHeI
(
meta.code
)
(
CODE_MISC
)
(1)
EWCaII-1
0.1nm
(n)
[-815931/77628000] CaII 8498Å line equivalent width; in Angstrom units
(
spect.line.eqWidth
)
(
SPECT_EQ-WIDTH
)
(1)
e_EWCaII-1
0.1nm
(n)
[0/48926900] Uncertainty in EWCaII-1
(
stat.error
)
(
ERROR
)
(1)
f_EWCaII-1
(char)
Activity flag for EWCaII-1
(
meta.code
)
(
CODE_MISC
)
(1)
EWCaII-2
0.1nm
(n)
[-635707/749992000] CaII 8542Å line equivalent width; in Angstrom units
(
spect.line.eqWidth
)
(
SPECT_EQ-WIDTH
)
(1)
e_EWCaII-2
0.1nm
(n)
[0/87080000] Uncertainty in EWCaII-2
(
stat.error
)
(
ERROR
)
(1)
f_EWCaII-2
(char)
Activity flag for EWCaII-2
(
meta.code
)
(
CODE_MISC
)
(1)
EWCaII-3
0.1nm
(n)
[-812/80842] CaII 8662Å line equivalent width; in Angstrom units
(
spect.line.eqWidth
)
(
SPECT_EQ-WIDTH
)
(1)
e_EWCaII-3
0.1nm
(n)
[0/49267000] Uncertainty in EWCaII-3
(
stat.error
)
(
ERROR
)
(1)
f_EWCaII-3
(char)
Activity flag for EWCaII-3
(
meta.code
)
(
CODE_MISC
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
(1)
EWTiO5
0.1nm
(n)
[-900/999995] TiO5 molecular line equivalent width; in Angstrom units
(
spect.line.eqWidth
)
(
SPECT_EQ-WIDTH
)
(1)
e_EWTiO5
0.1nm
(n)
[0/1316216] Uncertainty in EWTiO5
(
stat.error
)
(
ERROR
)
(1)
EWCaH1
0.1nm
(n)
[-3580/6399] CaH1 molecular line equivalent width; in Angstrom units
(
spect.line.eqWidth
)
(
SPECT_EQ-WIDTH
)
(1)
e_EWCaH1
0.1nm
(n)
[0/970780] Uncertainty in EWCaH1
(
stat.error
)
(
ERROR
)
(1)
EWCaH2
0.1nm
(n)
[-1205/730] CaH2 molecular line equivalent width; in Angstrom units
(
spect.line.eqWidth
)
(
SPECT_EQ-WIDTH
)
(1)
e_EWCaH2
0.1nm
(n)
[0/99769] Uncertainty in EWCaH2
(
stat.error
)
(
ERROR
)
(1)
EWCaH3
0.1nm
(n)
[-837/1777] CaH3 molecular line equivalent width; in Angstrom units
(
spect.line.eqWidth
)
(
SPECT_EQ-WIDTH
)
(1)
e_EWCaH3
0.1nm
(n)
[0/42079819] Uncertainty in EWCaH3
(
stat.error
)
(
ERROR
)
(1)
DR4+5
(char)
Display the LAMOST DR4 (
V/153
) and DR5 (
V/164
) data within 0.5"
(
meta.ref.url
)
(
DATA_LINK
)
(1)
Sloan
(char)
Display the online SDSS-DR14 data for the nearest object
(
meta.ref.url
)
(
DATA_LINK
)
(ALL)
_RA
deg
(i)
Positions from LAMOST names (right ascension part)
(
pos.eq.ra;meta.main
)
(
POS_EQ_RA_MAIN
)
(ALL)
_DE
deg
(i)
Positions from LAMOST names (declination part)
(
pos.eq.dec;meta.main
)
(
POS_EQ_DEC_MAIN
)
(2)
LR
(n)
Display low resolution measurements for this star
(
meta.ref.url
)
(
DATA_LINK
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
(2)
HJD
min
(n)
[83555758/84454742] Heliocentric Julian Date in minutes
(
time.epoch
)
(
TIME_DATE
)
(2)
SN
[0/999] Signal to noise ratio
(
stat.snr
)
(
INST_S/N
)
(2)
Em
(char)
[Y/N] Emission of Hα line? (No=absorption)
(
meta.code
)
(
CODE_MISC
)
(2)
L
(char)
[Y/N] Hα variation on long time scale?
(
meta.code
)
(
CODE_MISC
)
(2)
S
(char)
[Y/N] Hα variation on short time scale?
(
meta.code
)
(
CODE_MISC
)
(3)
Seq
[1/85992] Internal object number
(
meta.id
)
(
ID_IDENTIFIER
)
(3)
Rep
[2/30] The repeated number of objects
(
meta.number
)
(
NUMBER
)
(3)
EWHa-Max
0.1nm
[-86/1363] Maximum Hα equivalent width; in Angstrom units
(
spect.line.eqWidth;stat.max;em.line.Halpha
)
(
SPECT_EQ-WIDTH
)
(3)
e_EWHa-Max
0.1nm
[0/8484] Uncertainty in EWHa-Max
(
stat.error
)
(
ERROR
)
(3)
EWHa-Min
0.1nm
[-498/318] Minimum Hα equivalent width; in Angstrom units
(
spect.line.eqWidth;stat.min;em.line.Halpha
)
(
SPECT_EQ-WIDTH
)
(3)
e_EWHa-Min
0.1nm
[0/8928] Uncertainty in EWHa-Min
(
stat.error
)
(
ERROR
)
(3)
Ratio
[-79107/24178] The EWHa-Max/EWHa-Min ratio
(
spect.line.eqWidth;arith.diff
)
(
SPECT_LINE_RATIO
)
(3)
Diff
[0/1360] The EWHa-Max - EWHa-Min difference
(
spect.line.eqWidth;arith.diff
)
(
VAR_AMPLITUDE_VALUE
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
(3)
e_Diff
[0.002/8928] Uncertainty in Diff
(
stat.error;arith.diff
)
(
ERROR
)
(3)
Var
(char)
[Yes/No ] Variation of Hα line?
(
meta.code;src.var
)
(
CODE_VARIAB
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
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