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J/AJ/145/31
8605
Catalog of X-ray selected BL Lac objects (Kapanadze+, 2013)
ReadMe+ftp
2013AJ....145...31K
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1.
J/AJ/145/31/table9
Overall variability of X-ray-selected BL Lac objects (XBLs) in different spectral bands
(114 rows)
meta
J/AJ/145/31/table9
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Constraint
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(
UCD
)
recno
Record number assigned by the VizieR team. Should Not be used for identification.
(
meta.record
)
(
RECORD
)
Name
(char)
Source name from X-ray surveys (G2)
(Note)
(
meta.id;meta.main
)
(
ID_MAIN
)
OName
(char)
Source name from X-ray surveys
(Note G2)
(
meta.id
)
(
ID_ALTERNATIVE
)
Band
(char)
[BVR] Spectral band (Johnson-Cousins B, V, or R)
(
instr.bandpass
)
(
OBS_BAND
)
mag
mag
Brightest magnitude
(
phot.mag
)
(
PHOT_MAG_UNDEF
)
l_dmag
(char)
[>] Lower limit flag on dmag
(
meta.code.error
)
(
CODE_LIMIT
)
dmag
mag
Overall optical variability in Band (Δm)
(Note 1)
(
phot.mag;arith.diff
)
(
PHOT_DIFF_MAG
)
r_mag
(char)
Reference of mag; in refs.dat file
(
meta.ref
)
(
REFER_CODE
)
Ref
(char)
Reference of faintest magnitude; in refs.dat file
(
meta.ref;pos.frame
)
(
REFER_CODE
)
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indexed column
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