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Simple Target
List Of Targets
Fast Xmatch with large catalogs or Simbad
Target
Name (resolved by
Sesame
) or
Position
:
J2000
B1975
B1950
B1900
B1875
B1855
Galactic
Supergal.
Ecl.J2000
Target dimension:
deg
arcmin
arcsec
NB: The epoch used for the query is the original epoch of the table(s)
Radius
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J/ApJ/776/136
3605
QPQ VI. HI absorption of z∼2 quasars (Prochaska+, 2013)
ReadMe+ftp
2013ApJ...776..136P
Similar Catalogs
Post annotation
1.
J/ApJ/776/136/qpq6
(c)
Quasars Probing Quasars VI (QPQ6) redshifts and HI measurements
(tables 1, 3 and 4)
(646 rows)
meta
J/ApJ/776/136/qpq6
2.
J/ApJ/776/136/table2
(c)
Journal of observations
(105 rows)
meta
J/ApJ/776/136/table2
Xmatch is
on
off
Radius:
arcsec
Master table:
all - matching rows only
J/ApJ/776/136/qpq6
J/ApJ/776/136/table2
Simple Constraint
List Of Constraints
Query by
Constraints
applied on Columns
(
Output Order:
+
-
)
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Column
Constraint
Explain
(
UCD
)
(ALL)
recno
Record number assigned by the VizieR team. Should Not be used for identification.
(
meta.record
)
(
RECORD
)
(1)
f/g-Q
(char)
Foreground quasar identifier
(
meta.id;meta.main
)
(
ID_MAIN
)
(1)
L912
[cW/m2/nm]
(n)
[28/32] Log of 912Å luminosity; erg/s/cm
2
/Å
(Note 2)
(
phys.luminosity;em.IR
)
(
PHYS_LUMINOSITY_IR_MISC
)
(1)
Lbol
[mW/m2]
(n)
[45/48] Log of bolometric luminosity; erg/s/cm
2
(Note 2)
(
phys.luminosity
)
(
PHOT_BOL_LUMINOSITY
)
(ALL)
b/g-Q
(char)
Background quasar identifier
(
meta.id.assoc
)
(
ID_ASSOCIATED
)
(1)
zbg
[1.7/4.9] Background redshift
(
src.redshift;pos.heliocentric
)
(
REDSHIFT_HC
)
(ALL)
Nq
(n)
Number of foreground quasars associated in QPQ6
(
meta.number
)
(
NUMBER
)
(1)
b
kpc
[31/999] Impact parameter R
⊥
(
src.impactParam
)
(
PHYS_IMPACT-PAR
)
(1)
gUV
(n)
[2/17964] Enhancement in flux relative to the extragalactic UV background
(Note 2)
(
phot.flux;arith.ratio
)
(
SPECT_FLUX_RATIO
)
(ALL)
Inst
(char)
Source spectrum
(Note G1)
(
meta.id;instr
)
(
INST_ID
)
(1)
Lines
(char)
Emission lines used in zem
(
meta.id;spect.line
)
(
SPECT_LINE_ID
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
(1)
zfg
[1.6/4.5] Emission line derived redshift
(
src.redshift;pos.heliocentric
)
(
REDSHIFT_HC
)
(1)
e_zfg
km/s
[272/794] Uncertainty in zfg
(
stat.error
)
(
ERROR
)
(1)
S/N
[6/205] Signal-to-noise per rest-frame Å
(Note 3)
(
stat.snr
)
(
INST_S/N
)
(1)
<F2000>
[0/1.2] Average flux
(Note 4)
(
phot.flux
)
(
SPECT_FLUX_VALUE
)
(1)
DelF
[-0.5/1] Value defined in Equ. 4
(Note 5)
(
phot.flux;arith.ratio
)
(
SPECT_FLUX_RATIO
)
(1)
delv
km/s
(n)
[-1733/1553] Velocity offset
(Note 6)
(
phys.veloc;arith.diff
)
(
VELOC_DIFF
)
(1)
LWave
0.1nm
(n)
[3204/6615] Lower wavelength of Lyα analysis (Å)
(
em.wl
)
(
SPECT_WAVELENGTH_MISC
)
(1)
UWave
0.1nm
(n)
[3217/6634] Upper wavelength of Lyα analysis (Å)
(
em.wl
)
(
SPECT_WAVELENGTH_MISC
)
(1)
l_WLya
(char)
Limit flag on WLya
(
meta.code.error
)
(
CODE_LIMIT
)
(1)
WLya
0.1nm
(n)
[0.2/23.7] Rest equivalent width
(Note 7)
(
spect.line.eqWidth
)
(
SPECT_EQ-WIDTH
)
(1)
e_WLya
0.1nm
(n)
[0.01/0.3] Uncertainty in WLya
(
stat.error
)
(
ERROR
)
(1)
l_logNH
(char)
Limit flag on logNH
(
meta.code.error
)
(
CODE_LIMIT
)
(1)
logNH
[cm-2]
(n)
[14.3/21.3] Log of H I column density
(
phys.columnDensity
)
(
PHYS_COLUMN_DENSITY
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
(1)
e_logNH
[cm-2]
(n)
[0.1/0.4] Uncertainty in logNH
(
stat.error
)
(
ERROR
)
(1)
OT
(n)
[-1/1] Optical thick flag
(Note 8)
(
meta.code
)
(
CODE_MISC
)
(1)
Qfg
(char)
Name of the foreground quasar in SIMBAD
(
meta.id
)
(
ID_ALTERNATIVE
)
(1)
Qbg
(char)
Name of the background quasar in SIMBAD
(
meta.id
)
(
ID_ALTERNATIVE
)
(1)
DR9Q
(n)
Sources from Paris+, 2012,
VII/269
, within 2"
(
meta.ref.url
)
(
DATA_LINK
)
(1)
Obs
(n)
Display the observation log
(
meta.code
)
(
CODE_MISC
)
(ALL)
Sloan
(char)
Display the online SDSS data for the nearest object
(
meta.ref.url
)
(
DATA_LINK
)
(1)
Simbad
(char)
ask the
Simbad
data-base about this object
(
meta.ref.url
)
(
DATA_LINK
)
(ALL)
_RA
deg
(i)
Postion of foreground quasar (from
f/g-Q
identifier (right ascension part)
(
pos.eq.ra;meta.main
)
(
POS_EQ_RA_MAIN
)
(ALL)
_DE
deg
(i)
Postion of foreground quasar (from
f/g-Q
identifier (declination part)
(
pos.eq.dec;meta.main
)
(
POS_EQ_DEC_MAIN
)
(2)
Obs
(char)
Observatory
(
meta.id;instr.obsty
)
(
OBSTY_ID
)
(2)
Date
"Y:M:D"
(n)
Observation date
(Note 3)
(
time.epoch;obs
)
(
TIME_DATE
)
(2)
Exp
s
[300/16800] Exposure time
(Note 4)
(
time.duration;obs.exposure
)
(
TIME_EXPTIME
)
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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