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J/ApJS/247/16
1169
Extreme high-frequency-peaked BL Lac objects (Acciari+, 2020)
ReadMe+ftp
2020ApJS..247...16A
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spectrum
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1.
J/ApJS/247/16/table7
The Swift-XRT results for the 11 sources
(319 rows)
meta
J/ApJS/247/16/table7
Simple Constraint
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Column
Constraint
Explain
(
UCD
)
recno
Record number assigned by the VizieR team. Should Not be used for identification.
(
meta.record
)
(
RECORD
)
Name
(char)
Source identifier
(
meta.id;meta.main
)
(
ID_MAIN
)
MJD
d
Modified Julian Date of observation
(
time.epoch
)
(
TIME_DATE
)
obsid
Observation identifier
(
meta.id;obs.param;obs
)
(
OBS_ID
)
Exp
s
[48/6905] Exposure time
(
time.duration;obs.exposure
)
(
TIME_EXPTIME
)
GammaPL
(n)
[1.3/2.4] Spectral index of power law-model
(Note 1)
(
spect.index
)
(
SPECT_SP-INDEX
)
e_GammaPL
(n)
[0.02/0.3] Uncertainty in GammaPL
(
stat.error
)
(
ERROR
)
chi2PL
(n)
[0.3/172] Power law-model χ
2
(
stat.fit.chi2
)
(
FIT_CHI2
)
dofPL
(n)
[2/172] Power law-model Degrees of Freedom
(
stat.fit.dof
)
(
STAT_N-DOF
)
GammaLP
(n)
[1.3/2.1] Spectral index of log-parabola model
(Note 1)
(
spect.index
)
(
SPECT_SP-INDEX
)
e_GammaLP
(n)
[0.05/0.2] Uncertainty in GammaLP
(
stat.error
)
(
ERROR
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
betaLP
(n)
[0.2/1] Curvature parameter of fitted log-parabola model
(
stat.param
)
(
MODEL_PARAM
)
e_betaLP
(n)
[0.09/0.3] Uncertainty in betaLP
(
stat.error
)
(
ERROR
)
chi2LP
(n)
[7.5/109] log-parabola model χ
2
(
stat.fit.chi2
)
(
FIT_CHI2
)
dofLP
(n)
[18/114] log-parabola model Degrees of Freedom
(
stat.fit.dof
)
(
STAT_N-DOF
)
Prob
%
Null-hypotheses of probability of F-test
(Note 2)
(
stat
)
(
STAT_PROBABILITY
)
F2-10
10-15W/m2
[1.5/85] X-ray 2-10 keV flux density
(Note 3)
(
phot.flux;em.X-ray
)
(
PHOT_FLUX_X
)
e_F2-10
10-15W/m2
[0.1/14] Uncertainty in F2-10
(Note 3)
(
stat.error
)
(
ERROR
)
F0.3-10
10-15W/m2
[2.8/140] X-ray 0.3-10 keV flux density
(Note 3)
(
phot.flux;em.X-ray
)
(
PHOT_FLUX_X
)
e_F0.3-10
10-15W/m2
[0.1/13] Uncertainty in F0.3-10
(Note 3)
(
stat.error
)
(
ERROR
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
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https://cdsannotations.u-strasbg.fr/annotations/vizierTable//
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