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J/other/NewA/16.503
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J/other/NewA/16.503
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J/other/NewA/16.503
7692
2MASS observation of BL Lac objects II. (Mao+, 2011)
ReadMe+ftp
Similar Catalogs
Post annotation
1.
J/other/NewA/16.503/table1
2MASS observational data of 833 BL Lacs
(833 rows)
Simple Constraint
List Of Constraints
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Constraints
applied on Columns
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Column
Constraint
Explain
(
UCD
)
recno
Record number within the original table (starting from 1)
(
meta.record
)
(
RECORD
)
Seq
Sequential number
(
meta.record
)
(
ID_NUMBER
)
Name
(char)
Source name
(
meta.id;meta.main
)
(
ID_MAIN
)
z
(n)
Confirmed redshift or lower limit
(
src.redshift
)
(
REDSHIFT_HC
)
l_z
(char)
[a] a if redshift lower limit
(
meta.code.error;src.redshift
)
(
CODE_LIMIT
)
Type
(char)
Type Source type adopted from the VV13 (Cat.
VII/258
) catalog
(Note 1)
(
src.class
)
(
CLASS_OBJECT
)
FBL?
(char)
[Y] Y if this BL Lac is in the LAC sample (Fermi-detected BL Lac, FBL)
(
meta.code
)
(
CODE_MISC
)
NOMAD
(char)
NOMAD (Cat.
I/297
) counterpart designation
(
meta.id
)
(
ID_CROSSID
)
2MASS
(char)
2MASS (Cat.
II/246
) counterpart designation
(
meta.id
)
(
ID_CROSSID
)
n_2MASS
(char)
[*] * when source having more than one 2MASS counterpart
(
meta.note
)
(
NOTE
)
r1
arcsec
Position difference between BL Lac and NOMAD counterpart positions
(
pos;arith.diff
)
(
POS_OFFSET
)
ALL
cols
(n)
indicates a possible blank or NULL column
r2
arcsec
Position difference between BL Lac and 2MASS counterpart positions
(
pos;arith.diff
)
(
POS_OFFSET
)
Jmag
mag
2MASS J magnitude
(
phot.mag;em.IR.J
)
(
PHOT_JHN_J
)
e_Jmag
mag
(n)
rms uncertainty on Jmag
(
stat.error;phot.mag;em.IR.J
)
(
ERROR
)
Hmag
mag
2MASS H magnitude
(
phot.mag;em.IR.H
)
(
PHOT_JHN_H
)
e_Hmag
mag
(n)
rms uncertainty on Hmag
(
stat.error;phot.mag;em.IR.H
)
(
ERROR
)
Ksmag
mag
2MASS Ks magnitude
(
phot.mag;em.IR.K
)
(
PHOT_JHN_K
)
e_Ksmag
mag
(n)
rms uncertainty on Ksmag
(
stat.error;phot.mag;em.IR.K
)
(
ERROR
)
Q2M
(char)
[ABCDEU] 2MASS quality flags
(Note 2)
(
meta.code.qual
)
(
CODE_QUALITY
)
AV
mag
Interstellar extinction coefficients from NED
(
phys.absorption
)
(
PHOT_EXTINCTION_ISM
)
n_AV
(char)
[Sb] Note on AV
(Note 3)
(
meta.note
)
(
NOTE
)
alf.IR
(n)
NIR spectral index α such that F
ν
∝ν
–α
(
spect.index
)
(
SPECT_SP-INDEX
)
e_alf.IR
(n)
rms uncertainty on alf.IR
(
stat.error
)
(
ERROR
)
logFp
[Hz]
(n)
Synchrotron peak frequency
(
em.freq;stat.max
)
(
OBS_FREQUENCY
)
r_logFp
(n)
Reference for Fpeak
(Note 4)
(
meta.ref;pos.frame
)
(
REFER_CODE
)
dH
(n)
Curvature parameter of the NIR spectrum, δH
(
stat.fit.param
)
(
FIT_PARAM_VALUE
)
n_dH
(char)
[c] c for low confidence curvature
(
meta.note
)
(
NOTE
)
e_dH
(n)
rms uncertainty on dH
(
stat.error
)
(
ERROR
)
NED
ask the
NED
data-base about this object
(
DATA_LINK
)
_RA
deg
Position from 2MASS counterpart (right ascension part)
(
pos.eq.ra;meta.main
)
(
POS_EQ_RA_MAIN
)
_DE
deg
Position from 2MASS counterpart (declination part)
(
pos.eq.dec;meta.main
)
(
POS_EQ_DEC_MAIN
)
ALL
cols
(n)
indicates a possible blank or NULL column
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