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J/ApJS/243/2
1823
SiIV and NV absorption line SDSS quasar systems (Chen+, 2019)
ReadMe+ftp
2019ApJS..243....2C
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spectrum
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1.
J/ApJS/243/2/table1
Catalog of SiIV Absorption Line Systems
[spectrum]
(716 rows)
meta
J/ApJS/243/2/table1
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
)
Pair
[1/358] ID number of a NAL pair
(
meta.id
)
(
ID_NUMBER
)
SDSS
(char)
SDSS object name (HHMMSS.ss+DDMMSS.s; J2000)
(
meta.id;meta.main
)
(
ID_MAIN
)
Plate
SDSS spectra plate ID
(
meta.id;instr.plate
)
(
ID_PLATE
)
MJD
d
SDSS spectra modified Julian Date of observation
(
time.epoch
)
(
TIME_DATE
)
Fiber
SDSS spectra fiber ID
(
meta.id
)
(
ID_FIBER
)
zem
[1.75/4.26] Redshift, quasar
(
src.redshift
)
(
REDSHIFT_HC
)
zabs
[1.73/4.14] Redshift, absorption line system, blue line of the SiIV doublet
(
src.redshift
)
(
REDSHIFT_HC
)
EW1393
0.1nm
[0.05/4] Equivalent width at rest frame, SiIV 1393Å
(
spect.line.eqWidth
)
(
SPECT_EQ-WIDTH
)
e_EW1393
0.1nm
[0/0.6] Uncertainty in EW1393
(Note 1)
(
stat.error
)
(
ERROR
)
EW1402
0.1nm
[0.04/3.8] Equivalent width at rest frame, SiIV 1402Å
(
spect.line.eqWidth
)
(
SPECT_EQ-WIDTH
)
e_EW1402
0.1nm
[0/0.7] Uncertainty in EW1402
(Note 1)
(
stat.error
)
(
ERROR
)
F1350
10-19W/m2/nm
[6/422] Continuum 1350Å flux, rest frame; in 10
–17
erg/s/cm
2
/Å units
(
phot.flux
)
(
SPECT_FLUX_VALUE
)
e_F1350
10-19W/m2/nm
[0.2/5] Uncertainty in flux1350
(
stat.error
)
(
ERROR
)
Vr
km/s
[-4498/28417] Offset velocity, SiIV absorption line system to quasar redshift
(Note G1)
(
phys.veloc;arith.diff
)
(
VELOC_DIFF
)
ID
[1/295] Identification number of the SiIV absorption line system
(
meta.id
)
(
ID_NUMBER
)
Sys
(n)
[-2/2] System category
(Note 2)
(
meta.code
)
(
CODE_MISC
)
SL
(n)
[0/17.4] Significance level of the variation
(Note 3)
(
stat.fit.goodness
)
(
STAT_SIGNIFICANCE
)
Sp
Interactive spectrum from SDSS-DR14
(
meta.ref.url
)
(
DATA_LINK
)
spectrum
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
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