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J/ApJ/746/54
4036
Chandra X-ray observations of SDSS-DR5 QSOs (Gibson+, 2012)
ReadMe+ftp
2012ApJ...746...54G
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1.
J/ApJ/746/54/Xobs
X-ray observations of each source: count rates, total counts, counts in each band
(tables 2 and 3)
(763 rows)
meta
J/ApJ/746/54/Xobs
Simple Constraint
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Constraint
Explain
(
UCD
)
recno
Record number assigned by the VizieR team. Should Not be used for identification.
(
meta.record
)
(
RECORD
)
SDSS
(char)
SDSS Name (HHMMSS.ss+DDMMSS.s; J2000)
(
meta.id;meta.main
)
(
ID_MAIN
)
ObsId
[304/9880] Observation number
(
meta.id;obs
)
(
OBS_ID
)
Exp
s
[161/170433] Exposure time
(
time.duration;obs.exposure
)
(
TIME_EXPTIME
)
OA
arcmin
[0.08/14.88] Off-Axis Angle
(
instr.offset
)
(
INST_ANG_OFFAXIS
)
HQ?
[0/1] In HQ sample flag (1=yes)
(Note G1)
(
meta.code
)
(
CODE_MISC
)
TSTART
s
Chandra TSTART parameter
(Note 1)
(
time.epoch
)
(
TIME_EPOCH
)
CRate
0.01/m2/s
[-5/1600] Source count rate (in units of 10
–6
ct/cm
2
/s)
(
phot.count;em.X-ray
)
(
PHOT_COUNT-RATE_X
)
E_CRate
0.01/m2/s
Upper limit uncertainty on CRate
(
stat.error;stat.max
)
(
ERROR
)
e_CRate
0.01/m2/s
Lower limit uncertainty on CRate
(
stat.error
)
(
ERROR
)
CtLum
10+52ct/s
[-237/3533] Count luminosity
(
phys.luminosity;em.X-ray
)
(
PHYS_LUMINOSITY_X
)
ALL
cols
(i)
indexed column
E_CtLum
10+52ct/s
Upper limit uncertainty on CtLum
(
stat.error;stat.max
)
(
ERROR
)
e_CtLum
10+52ct/s
Lower limit uncertainty on CtLum
(
stat.error
)
(
ERROR
)
Full
ct
[0/33089] Full (0.5-8 keV) band total counts
(Note 2)
(
phot.count;em.X-ray
)
(
PHOT_COUNTS_X
)
E_Full
ct
Upper limit uncertainty on Full
(
stat.error;stat.max
)
(
ERROR
)
e_Full
ct
Lower limit uncertainty on Full
(
stat.error
)
(
ERROR
)
Soft
ct
[0/24936] Soft (0.5-2 keV) band total counts
(
phot.count;em.X-ray
)
(
PHOT_COUNTS_X
)
E_Soft
ct
Upper limit uncertainty on Soft
(
stat.error;stat.max
)
(
ERROR
)
e_Soft
ct
Lower limit uncertainty on Soft
(
stat.error
)
(
ERROR
)
Hard
ct
[0/8337] Hard (2-8 keV) band total counts
(
phot.count;em.X-ray
)
(
PHOT_COUNTS_X
)
E_Hard
ct
Upper limit uncertainty on Hard
(
stat.error;stat.max
)
(
ERROR
)
e_Hard
ct
Lower limit uncertainty on Hard
(
stat.error
)
(
ERROR
)
SFcts
ct
[-6.3/33089] Source full (0.5-8keV) band counts
(Note 1)
(
phot.count;em.X-ray
)
(
PHOT_COUNTS_X
)
E_SFcts
ct
Upper limit uncertainty in SFcts
(
stat.error;stat.max
)
(
ERROR
)
ALL
cols
(i)
indexed column
e_SFcts
ct
Lower limit uncertainty on SFcts
(
stat.error
)
(
ERROR
)
SScts
ct
[-3.7/24936] Source soft (0.5-2 keV) band counts
(
phot.count;em.X-ray
)
(
PHOT_COUNTS_X
)
E_SScts
ct
Upper limit uncertainty on SScts
(
stat.error;stat.max
)
(
ERROR
)
e_SScts
ct
Lower limit uncertainty on SFcts
(
stat.error
)
(
ERROR
)
SHcts
ct
[-8.6/8337] Source hard (2-8 keV) band counts
(
phot.count;em.X-ray
)
(
PHOT_COUNTS_X
)
E_SHcts
ct
Upper limit uncertainty on SHcts
(
stat.error;stat.max
)
(
ERROR
)
e_SHcts
ct
Lower limit uncertainty on SHcts
(
stat.error
)
(
ERROR
)
bgFcts
ct
[-0.4/428] Background full (0.5-8 keV) band counts
(Note 1)
(
instr.background
)
(
INST_BACKGROUND
)
E_bgFcts
ct
Upper limit uncertainty in bgFcts
(
stat.error;stat.max
)
(
ERROR
)
e_bgFcts
ct
Lower limit uncertainty in bgFcts
(
stat.error
)
(
ERROR
)
bgScts
ct
[-0.4/75] Background soft (0.5-2 keV) band counts
(Note 1)
(
instr.background;em.X-ray.soft
)
(
INST_BACKGROUND
)
E_bgScts
ct
Upper limit uncertainty in bgScts
(
stat.error;stat.max
)
(
ERROR
)
e_bgScts
ct
Lower limit uncertainty in bgScts
(
stat.error
)
(
ERROR
)
ALL
cols
(i)
indexed column
bgHcts
ct
[-0.3/356] Background hard (2-8 keV) band counts
(Note 1)
(
instr.background;em.X-ray.hard
)
(
INST_BACKGROUND
)
E_bgHcts
ct
Upper limit uncertainty in bgHcts
(
stat.error;stat.max
)
(
ERROR
)
e_bgHcts
ct
Lower limit uncertainty in bgHcts
(
stat.error
)
(
ERROR
)
HR
(n)
[-1/1] Hardness ratio
(Note 2)
(
phot.flux;arith.ratio
)
(
SPECT_HARDNESS-RATIO
)
E_HR
(n)
Upper limit uncertainty on HR
(
stat.error;stat.max
)
(
ERROR
)
e_HR
(n)
Lower limit uncertainty on HR
(
stat.error
)
(
ERROR
)
Lum
10+35W
[-3900/58166] Approximate 0.5-8keV luminosity
(Note 3)
(
phys.luminosity;em.X-ray
)
(
PHYS_LUMINOSITY_X
)
E_Lum
10+35W
Upper limit uncertainty in Lum
(
stat.error;stat.max
)
(
ERROR
)
e_Lum
10+35W
Lower limit uncertainty in Lum
(
stat.error
)
(
ERROR
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
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