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J/ApJ/635/123
7758
The SDSS-DR3 damped Ly{alpha} survey (Prochaska+, 2005)
ReadMe+ftp
2005ApJ...635..123P
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1.
J/ApJ/635/123/dla
SDSS-DR3 DLA and super-LLS sample
(tables 3, 4 and 5 of paper)
(924 rows)
meta
J/ApJ/635/123/dla
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
)
Class
(char)
Class of the source:
DLA-s
for Damped Ly-{alpha} in statistical sample,
DLA-n
for Damped Ly-{alpha} in non-statistical sample,
SLLS
for Super-Lyman Limit System
(
src.class
)
(
CLASS_OBJECT
)
n_SDSS
(char)
[*] when quasar does not exit is SDSS-DR3
(Note 3)
(
meta.note
)
(
NOTE
)
SDSS
(char)
Quasar name in DR3, as in table1
(Note 3)
(
meta.id
)
(
ID_ALTERNATIVE
)
SDSSt
(char)
Quasar truncated name
(Note 1)
(
meta.id;meta.main
)
(
ID_MAIN
)
zabs
Damped Ly{alpha} absorption redshift
(Note 1)
(
src.redshift
)
(
REDSHIFT_HC
)
DR
[1,3] Data release of actual spectrum analyzed
(
meta.id
)
(
ID_SET
)
S/N
(n)
Signal-to-Noise ratio
(
stat.snr
)
(
INST_S/N
)
Memb
(char)
[yn] Membership in the CLR (confidence limit ratio) statistical cut?
(
meta.code.member;stat.value
)
(
CODE_MEMB
)
Metal
[0/2] Flag on the metal-line absorption
(Note 2)
(
meta.note
)
(
SPECT_FEATURE_PROP
)
logNHI
[cm-2]
Log of the Hydrogen column density
(
phys.columnDensity
)
(
PHYS_COLUMN_DENSITY
)
E_logNHI
[cm-2]
Upper limit error in logNHI
(
stat.error;stat.max
)
(
ERROR
)
e_logNHI
[cm-2]
Lower limit error in logNHI
(
stat.error
)
(
ERROR
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
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