IX/58 2SXPS Swift X-ray telescope point source catalogue (Evans+, 2020)
2SXPS: An improved and expanded Swift X-ray telescope point source catalog.
Evans P.A., Page K.L., Osborne J.P., Beardmore A.P., Willingale R.,
Burrows D.N., Kennea J.A., Perri M., Capalbi M., Tagliaferri G., Cenko S.B.
<Astrophys. J., Suppl. Ser., 247, 54 (2020)>
=2020yCat.9058....0E 2020yCat.9058....0E
=2020ApJS..247...54E 2020ApJS..247...54E
ADC_Keywords: X-ray sources ; Surveys
Mission_Name: Swift
Keywords: catalogs - surveys - X-rays: observations - methods: data analysis
Abstract:
We present the 2SXPS (Swift-XRT Point Source) catalog, containing
206,335 point sources detected by the Swift X-ray Telescope (XRT) in
the 0.3-10 keV energy range. This catalog represents a significant
improvement over 1SXPS, with double the sky coverage (now
3,790deg2), and several significant improvements in source detection
and classification. In particular, we present for the first time
techniques to model the effect of stray light - significantly reducing
the number of spurious sources detected. These techniques will be very
important for future, large effective area X-ray mission such as the
forthcoming Athena X-ray observatory. We also present a new model of
the XRT point spread function, and a method for correctly localising
and characterising piled up sources. We provide light curves - in four
energy bands, two hardness ratios and two binning timescales -- for
every source, and from these deduce that over 80,000 of the sources in
2SXPS are variable in at least one band or hardness ratio. The catalog
data can be queried or downloaded via a bespoke web interface at
https://www.swift.ac.uk/2SXPS, via HEASARC, or in Vizier (IX/58)
Description:
The 2SXPS catalogue is a point-source catalogue built from all
Swift-XRT Photon Counting mode data of at least 50 s in duration
gathered prior between 2005 Jan 01 and 2018 August 01. It contains
positions, fluxes, spectral details, variability information and a
flag indicating the reliability of the detection for 206,335 objects.
Various values (e.g. the count rates) are given in 4 bands:
Total = 0.3-10 keV
Soft = 0.3-1 keV
Medium = 1-2 keV
Hard = 2-10 keV
The source detection was performed in each of these bands
independently, and the results combined to give this final catalogue.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
2sxps.dat 2296 206335 The 2SXPS Catalogue of Swift X-ray telescope
Point Sources
2sxpscle.dat 2296 146768 The 2SXPS Catalogue of Swift X-ray telescope
Point Sources "clean" version
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See also:
I/284 : The USNO-B1.0 Catalog (Monet+ 2003)
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
II/328 : AllWISE Data Release (Cutri+ 2013)
IX/28 : ROSAT HRI Pointed Observations (1RXH) (ROSAT Team, 2000)
IX/55 : XMM-Newton Serendipitous Source Catalogue 3XMM-DR8
(XMM-SSC, 2018)
IX/56 : 3XMM-DR7s serendipitous source catalogue from stacks
(Traulsen+, 2019)
IX/53 : XMM-Newton slew survey Source Catalogue, version 2.0
(XMM-SSC, 2017)
IX/43 : 1SXPS Swift X-ray telescope point source catalogue
(Evans+ 2014)
J/A+A/528/A122 : SwiftFT catalog (Puccetti+, 2011)
J/A+A/547/A57 : Swift X-ray Telescope Cluster Survey (Tundo+, 2012)
J/A+A/551/A142 : 7 year Swift-XRT point source catalog (1SWXRT)
(D'Elia+, 2013)
J/A+A/588/A103 : Second ROSAT all-sky survey (2RXS) source catalog
(Boller+, 2016)
http://www.swift.ac.uk/2SXPS/ : 2SXPS home page
http://www.swift.ac.uk/2SXPS/docs.php : On-line Documentation
Byte-by-byte Description of file: 2sxps.dat 2sxpscle.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 I6 --- 2SXPS Numerical unique source identifier
within 2SXPS (2SXPS_ID)
8- 29 A22 --- IAUName IAU-format name,
2SXPS JHHMMSS±ddmmsss (IAUName)
31- 39 F9.5 deg RAdeg Right Ascension (J2000) (RA)
41- 49 F9.5 deg DEdeg Declination (J2000) (Decl)
51- 54 F4.1 arcsec Err90 Position uncertainty, 90% confidence,
radial, assumed to be
Rayleigh-distributed (Err90)
56 I1 --- A [0/1] Provenance of source astrometry.
0=Swift star tracker, 1=XRT/2MASS
astrometry (AstromType)
58- 66 F9.5 deg GLON Galactic longitude (l)
68- 76 F9.5 deg GLAT Galactic latitude (b)
78- 83 F6.2 arcmin OffAxis The mean angular distance of the
source from the XRT boresight in all
observations within which the source
was detected (MeanOffAxisAngle) (1)
85- 92 F8.2 arcsec DNN The distance to the closest 2SXPS
source to this one (NearestNeighbour)
94- 101 F8.2 arcsec DNNOK The distance to the closest 2SXPS
source to this one which is ranked
Good or Reasonable and has no other
DetFlag bits set (NearestOKNeighbour)
103- 109 I7 s t.exp The total exposure at the source
location in the catalogue (Exposure)
111- 129 A19 "datime" t.start1 The UTC date & time of the start of
the first observation in 2SXPS which
covered the source location
(FirstObsDate)
131- 149 A19 "datime" t.stop1 The UTC date & time of the end of the
last observation in 2SXPS which
covered the source location
(LastObsDate)
151- 159 I9 s time.start1 The time of the start of the first
observation in 2SXPS which covered
the source location, in Swift Mission
Elapsed Time (FirstObsMET) (2)
161- 169 I9 s time.stop1 The time of the end of the last
observation in 2SXPS which covered
the source location in, Swift Mission
Elapsed Time (LastObsMET) (2)
171- 189 A19 "datime" t.start2 The UTC date & time of the start of
the first observation in 2SXPS in
which the source count rate is
inconsistent with 0 at the 3-sigma
level (FirstDetDate)
191- 209 A19 "datime" t.stop2 The UTC date & time of the end of the
last observation in 2SXPS in which
the source count rate is inconsistent
with 0 at the 3-sigma level
(LastDetDate)
211- 219 I9 s time.start2 The time of the start of the first
observation in 2SXPS in which the
source count rate is inconsistent
with 0 at the 3-sigma level, in Swift
Mission Elapsed Time (FirstDetMET)(2)
221- 229 I9 s time.stop2 The time of the end of the last
observation in 2SXPS in which the
source count rate is inconsistent
with 0 at the 3-sigma level, in Swift
Mission Elapsed Time (LastDetMET) (2)
231- 249 A19 "datime" t.start3 The UTC date & time of the start of
the first observation in 2SXPS in
which the source is detected in the
blind search (FirstBlindDetDate)
251- 269 A19 "datime" t.stop3 The UTC date & time of the end of the
last observation in 2SXPS in which
the source is detected in the blind
search (LastBlindDetDate)
271- 279 I9 s time.start3 The time of the start of the first
observation in 2SXPS in which the
source is detected in the blind
search, in Swift Mission Elapsed Time
(FirstBlindDetMET) (2)
281- 289 I9 s time.stop3 The time of the end of the last
observation in 2SXPS in which the
source is detected in the blind
search, in Swift Mission Elapsed Time
(LastBlindDetMET) (2)
291- 294 I4 --- NObs The number of observations covering
this source's position (NumObs)
296- 299 I4 --- NBlind The number of observations in which
this source was found in a blind
search (NumBlindDetObs)
301- 304 I4 --- NDet The number of observations in which
this source is detected (NumDetObs)
306- 312 I7 --- NBest The ID of the 'best' detection
(BestDetectionID)
314 I1 --- F0 Whether the count-rate in the
0.3-10keV band is inconsistent with 0
at the 3-sigma level
(NonBlindDet_band0)
316 I1 --- F1 Whether the count-rate in the
0.3-1keV band is inconsistent with 0
at the 3-sigma level
(NonBlindDet_band1)
318 I1 --- F2 Whether the count-rate in the 1-2keV
band is inconsistent with 0 at the
3-sigma level (NonBlindDet_band2)
320 I1 --- F3 Whether the count-rate in the 2-10keV
band is inconsistent with 0 at the
3-sigma level (NonBlindDet_band3)
322- 323 I2 --- Det The final source detection flag
(DetFlag) (3)
325- 326 I2 --- FField The final fieldFlag for this source
(FieldFlag) (4)
328- 330 I3 --- Det0 The final detection flag the 0.3-10keV
band (DetFlag_band0) (3)
332- 334 I3 --- Det1 The final detection flag the 0.3-1keV
band (DetFlag_band1) (3)
336- 338 I3 --- Det2 The final detection flag in the 1-2keV
band (DetFlag_band2) (3)
340- 342 I3 --- Det3 The final detection flag in the
2-10keV band (DetFlag_band3) (3)
344- 352 F9.6 mag Warning The worst optical loading warning from
all detections of this source (5)
354 I1 --- DetSLW Whether any detection of this source
occurred within fitted stray light
rings (StrayLightWarning)
356 I1 --- DetNBSW Whether any detection of this source
occurred within the PSF wings of a
bright object
(NearBrightSourceWarning)
358 I1 --- Dup Whether this source is potentially an
alias (i.e. duplicate) of another
source (IsPotentialAlias)
360- 536 A177 --- ONames The list of other sources which may be
aliases of this one
(PotentialAliasList)
--------------------------------------------------------------------------------
538- 545 E8.3 ct/s CR0 ? The mean count-rate in the 0.3-10keV
band (Rate_band0)
547- 554 E8.3 ct/s E_CR0 ? The 1-sigma positive uncertainty on
the mean count-rate in the
0.3-10keV band (Rateband0pos)
556- 564 E9.3 ct/s e_CR0 []? The 1-sigma negative uncertainty
on the mean count-rate in the
0.3-10keV band (Rateband0neg)
566- 571 F6.3 --- HR1 ? The aggregate HR1 hardness ratio of
the source (HR1)
573- 578 F6.4 --- E_HR1 ? The 1-sigma positive uncertainty on
the aggregate HR1 hardness ratio of
the source (HR1_pos)
580- 586 F7.4 --- e_HR1 []? The 1-sigma negative uncertainty
on the aggregate HR1 hardness ratio
of the source (HR1_neg)
588- 593 F6.3 --- HR2 ? The aggregate HR2 hardness ratio of
the source (HR2)
595- 600 F6.4 --- E_HR2 ? The 1-sigma positive uncertainty on
the aggregate HR2 hardness ratio of
the source (HR2_pos)
602- 608 F7.4 --- e_HR2 []? The 1-sigma negative uncertainty
on the aggregate HR2 hardness ratio
of the source (HR2_neg)
610- 617 E8.3 ct/s CR1 ? The mean count-rate in the 0.3-1keV
band (Rate_band1)
619- 626 E8.3 ct/s E_CR1 ? The 1-sigma positive uncertainty on
the mean count-rate in the 0.3-1keV
band (Rateband1pos)
628- 636 E9.3 ct/s e_CR1 []? The 1-sigma negative uncertainty
on the mean count-rate in the
0.3-1keV band (Rateband1neg)
638- 645 E8.3 ct/s CR2 ? The mean count-rate in the 1-2keV
band (Rate_band2)
647- 654 E8.3 ct/s E_CR2 ? The 1-sigma positive uncertainty on
the mean count-rate in the
1-2keV band (Rateband2pos)
656- 664 E9.3 ct/s e_CR2 []? The 1-sigma negative uncertainty
on the mean count-rate in the
1-2keV band (Rateband2neg)
666- 673 E8.3 ct/s CR3 ? The mean count-rate in the 2-10keV
band (Rate_band3)
675- 682 E8.3 ct/s E_CR3 ? The 1-sigma positive uncertainty on
the mean count-rate in the
2-10keV band (Rateband3pos)
684- 692 E9.3 ct/s e_CR3 []? The 1-sigma negative uncertainty
on the mean count-rate in the
2-10keV band (Rateband3neg)
694- 700 I7 ct Ct0 ? The total number of counts in the
source region in the 0.3-10keV band
(Counts_band0)
702- 708 I7 ct Ct1 ? The total number of counts in the
source region in the 0.3-1keV band
(Counts_band1)
710- 716 I7 ct Ct2 ? The total number of counts in the
source region in the 1-2keV band
(Counts_band2)
718- 724 I7 ct Ct3 ? The total number of counts in the
source region in the 2-10keV band
(Counts_band3)
726- 735 F10.2 ct bgCt0 ? The total number of background
counts expected in the source region
in the 0.3-10keV band
(BgCounts_band0)
737- 746 F10.2 ct bgCt1 ? The total number of background
counts expected in the source region
in the 0.3-1keV band (BgCounts_band1)
748- 757 F10.2 ct bgCt2 ? The total number of background
counts expected in the source region
in the 1-2keV band (BgCounts_band2)
759- 768 F10.2 ct bgCt3 ? The total number of background
counts expected in the source region
in the 2-10keV band (BgCounts_band3)
770- 776 F7.2 --- CF0 ? The PSF correction factor in the
0.3-10keV band (RateCF_band0)
778- 784 F7.2 --- CF1 ? The PSF correction factor in the
0.3-1keV band (RateCF_band1)
786- 792 F7.2 --- CF2 ? The PSF correction factor in the
1-2keV band (RateCF_band2)
794- 800 F7.2 --- CF3 ? The PSF correction factor in the
2-10keV band (RateCF_band3)
802- 810 E9.4 ct/s FUL0 ? The 3-sigma upper confidence limit
on the count-rate in the
0.3-10keV band (UL_band0)
812- 820 E9.4 ct/s FUL1 ? The 3-sigma upper confidence limit
on the count-rate in the
0.3-1keV band (UL_band1)
822- 830 E9.4 ct/s FUL2 ? The 3-sigma upper confidence limit
on the count-rate in the
1-2keV band (UL_band2)
832- 840 E9.4 ct/s FUL3 ? The 3-sigma upper confidence limit
on the count-rate in the
2-10keV band (UL_band3)
842- 850 E9.4 ct/s PCR0 ? The peak count-rate in the
0.3-10keV band (PeakRate_band0)
852- 860 E9.4 ct/s E_PCR0 ? The 1-sigma positive uncertainty on
the peak count-rate in the
0.3-10keV band (PeakRateband0pos)
862- 871 E10.4 ct/s e_PCR0 []? The 1-sigma negative uncertainty
on the peak count-rate in the
0.3-10keV band (PeakRateband0neg)
873- 881 E9.4 ct/s PCR1 ? The peak count-rate in the
0.3-1keV band (PeakRate_band1)
883- 891 E9.4 ct/s E_PCR1 ? The 1-sigma positive uncertainty on
the peak count-rate in the
0.3-1keV band (PeakRateband1pos)
893- 902 E10.4 ct/s e_PCR1 []? The 1-sigma negative uncertainty
on the peak count-rate in the
0.3-1keV band (PeakRateband1neg)
904- 912 E9.4 ct/s PCR2 ? The peak count-rate in the
1-2keV band (PeakRate_band2)
914- 922 E9.4 ct/s E_PCR2 ? The 1-sigma positive uncertainty on
the peak count-rate in the
1-2keV band (PeakRateband2pos)
924- 933 E10.4 ct/s e_PCR2 []? The 1-sigma negative uncertainty
on the peak count-rate in the
1-2keV band (PeakRateband2neg)
935- 943 E9.4 ct/s PCR3 ? The peak count-rate in the
2-10keV band (PeakRate_band3)
945- 953 E9.4 ct/s E_PCR3 ? The 1-sigma positive uncertainty on
the peak count-rate in the
2-10keV band (PeakRateband3pos)
955- 964 E10.4 ct/s e_PCR3 []? The 1-sigma negative uncertainty
on the peak count-rate in the
2-10keV band (PeakRateband3neg)
966- 974 E9.3 cm-2 NHg The Galactic absorption column in the
direction of the source, from
Willingale et al (2013)
(GalacticNH)
976- 983 E8.3 --- PcstS0 ? The probability that the source
count-rate in the 0.3-10keV band does
not vary between snapshots
(PvarPchiSnapshot_band0) (6)
985- 992 E8.3 --- PcstS1 ? The probability that the source
count-rate in the 0.3-1keV band does
not vary between snapshots
(PvarPchiSnapshot_band1) (6)
994-1001 E8.3 --- PcstS2 ? The probability that the source
count-rate in the 1-2keV band does
not vary between snapshots
(PvarPchiSnapshot_band2) (6)
1003-1010 E8.3 --- PcstS3 ? The probability that the source
count-rate in the 2-10keV band does
not vary between snapshots
(PvarPchiSnapshot_band3) (6)
1012-1019 E8.3 --- PcstSHR1 ? The probability that the source HR1
hardness ratio does not vary between
snapshots (PvarPchiSnapshot_HR1) (6)
1021-1028 E8.3 --- PcstSHR2 ? The probability that the source HR2
hardness ratio does not vary between
snapshots (PvarPchiSnapshot_HR2) (6)
1030-1037 E8.3 --- Pcst0 ? The probability that the source
count-rate in the 0.3-10keV band does
not vary between observations
(PvarPchiObsID_band0) (6)
1039-1046 E8.3 --- Pcst1 ? The probability that the source
count-rate in the 0.3-1keV band does
not vary between observations
(PvarPchiObsID_band1) (6)
1048-1055 E8.3 --- Pcst2 ? The probability that the source
count-rate in the 1-2keV band does
not vary between observations
(PvarPchiObsID_band2) (6)
1057-1064 E8.3 --- Pcst3 ? The probability that the source
count-rate in the 2-10keV band does
not vary between observations
(PvarPchiObsID_band3) (6)
1066-1073 E8.3 --- PcstHR1 ? The probability that the source HR1
hardness ratio does not vary between
observations (PvarPchiObsID_HR1) (6)
1075-1082 E8.3 --- PcstHR2 ? The probability that the source HR2
hardness ratio does not vary between
observations (PvarPchiObsID_HR2) (6)
1084 I1 --- Pow ? Which method of determining the
spectral properties assuming a
power-law was used (WhichPow) (7)
1086 I1 --- APEC ? Which method of determining the
spectral properties assuming an APEC
was used (WhichAPEC) (7)
--------------------------------------------------------------------------------
1088-1096 E9.4 mJ/m2/ct CFO0 ? Energy Conversion Factor from
0.3-10keV count-rate to 0.3-10keV
observed flux, assuming a power-law
spectrum (PowECFO)
1098-1106 E9.4 mJ/m2/ct CFU0 ? Energy Conversion Factor from
0.3-10keV count-rate to 0.3-10keV
unabsorbed flux, assuming a
power-law spectrum (PowECFU)
1108-1116 E9.4 mW/m2 FPO0 ? The mean 0.3-10keV observed flux
assuming a power-law spectrum
(PowFlux)
1118-1127 E10.5 mW/m2 E_FPO0 ? The 1-sigma positive uncertainty on
the mean 0.3-10keV observed flux
assuming a power-law spectrum
(PowFlux_pos)
1129-1139 E11.5 mW/m2 e_FPO0 []? The 1-sigma negative uncertainty
on the mean 0.3-10keV observed flux
assuming a power-law spectrum
(PowFlux_neg)
1141-1149 E9.3 mW/m2 FPU0 ? The mean 0.3-10keV unabsorbed flux
assuming a power-law spectrum
(PowUnabsFlux)
1151-1160 E10.4 mW/m2 E_FPU0 ? The 1-sigma positive uncertainty on
the mean 0.3-10keV unabsorbed flux
assuming a power-law spectrum
(PowUnabsFlux_pos)
1162-1172 E11.4 mW/m2 e_FPU0 []? The 1-sigma negative uncertainty
on the mean 0.3-10keV unabsorbed flux
assuming a power-law spectrum
(PowUnabsFlux_neg)
--------------------------------------------------------------------------------
1174-1182 E9.4 mJ/m2/ct ECFO0 ? The Energy Conversion Factor from
0.3-10keV count-rate to 0.3-10keV
observed flux, assuming an APEC
spectrum (APECECFO)
1184-1192 E9.4 mJ/m2/ct ECFU0 ? The Energy Conversion Factor from
0.3-10keV count-rate to 0.3-10keV
unabsorbed flux, assuming an APEC
spectrum (APECECFU)
1194-1202 E9.4 mW/m2 FAO0 ? The mean 0.3-10keV observed flux
assuming an APEC spectrum (APECFlux)
1204-1213 E10.5 mW/m2 E_FAO0 ? The 1-sigma positive uncertainty on
the mean 0.3-10keV observed flux
assuming an APEC spectrum
(APECFlux_pos)
1215-1225 E11.5 mW/m2 e_FAO0 []? The 1-sigma negative uncertainty
on the mean 0.3-10keV observed flux
assuming an APEC spectrum
(APECFlux_neg)
1227-1236 E10.5 mW/m2 FAU0 ? The mean 0.3-10keV unabsorbed flux
assuming an APEC spectrum
(APECUnabsFlux)
1238-1248 E11.5 mW/m2 E_FAU0 ? The 1-sigma positive uncertainty on
the mean 0.3-10keV unabsorbed flux
assuming an APEC spectrum
(APECUnabsFlux_pos)
1250-1262 E13.5 mW/m2 e_FAU0 []? The 1-sigma negative uncertainty
on the mean 0.3-10keV unabsorbed flux
assuming an APEC spectrum
(APECUnabsFlux_neg)
--------------------------------------------------------------------------------
1263-1272 E10.5 mW/m2 FpPO0 ? The peak 0.3-10keV observed flux
assuming a power-law spectrum
(PowPeakFlux)
1274-1283 E10.5 mW/m2 E_FpPO0 ? The 1-sigma positive uncertainty on
the peak 0.3-10keV observed flux
assuming a power-law spectrum
(PowPeakFlux_pos)
1285-1295 E11.5 mW/m2 e_FpPO0 []? The 1-sigma negative uncertainty
on the peak 0.3-10keV observed flux
assuming a power-law spectrum
(PowPeakFlux_neg)
1297-1307 E11.5 mW/m2 FpPU0 ? The peak 0.3-10keV unabsorbed flux
assuming a power-law spectrum
(PowPeakUnabsFlux)
1309-1319 E11.5 mW/m2 E_FpPU0 ? The 1-sigma positive uncertainty on
the peak 0.3-10keV unabsorbed flux
assuming a power-law spectrum
(PowPeakUnabsFlux_pos)
1321-1332 E12.5 mW/m2 e_FpPU0 []? The 1-sigma negative uncertainty
on the peak 0.3-10keV unabsorbed flux
assuming a power-law spectrum
(PowPeakUnabsFlux_neg)
--------------------------------------------------------------------------------
1334-1343 E10.5 mW/m2 FpAO0 ? The peak 0.3-10keV observed flux
assuming an APEC spectrum
(APECPeakFlux)
1345-1354 E10.5 mW/m2 E_FpAO0 ? The 1-sigma positive uncertainty on
the peak 0.3-10keV observed flux
assuming an APEC spectrum
(APECPeakFlux_pos)
1356-1366 E11.5 mW/m2 e_FpAO0 []? The 1-sigma negative uncertainty
on the peak 0.3-10keV observed flux
assuming an APEC spectrum
(APECPeakFlux_neg)
1368-1378 E11.5 mW/m2 FpAU0 ? The peak 0.3-10keV unabsorbed flux
assuming an APEC spectrum
(APECPeakUnabsFlux)
1380-1390 E11.5 mW/m2 E_FpAU0 ? The 1-sigma positive uncertainty on
the peak 0.3-10keV unabsorbed flux
assuming an APEC spectrum
(APECPeakUnabsFlux_pos)
1392-1404 E13.5 mW/m2 e_FpAU0 []? The 1-sigma negative uncertainty
on the peak 0.3-10keV unabsorbed flux
assuming an APEC spectrum
(APECPeakUnabsFlux_neg)
--------------------------------------------------------------------------------
1405-1413 E9.4 mJ/m2/ct CECFO ? The Energy Conversion Factor from
0.3-10keV count-rate to 0.3-10keV
observed flux, assuming the canned
power-law spectrum (FixedPowECFO)
1415-1423 E9.4 mJ/m2/ct CECFU ? The Energy Conversion Factor from
0.3-10keV count-rate to 0.3-10keV
unabsorbed flux, assuming the canned
power-law spectrum (FixedPowECFU)
1425-1433 E9.4 mW/m2 FCOP0 ? The mean 0.3-10keV observed flux
assuming the canned power-law
spectrum (FixedPowFlux)
1435-1444 E10.5 mW/m2 E_FCOP0 ? The 1-sigma positive uncertainty on
the mean 0.3-10keV observed flux
assuming the canned power-law
spectrum (FixedPowFlux_pos)
1446-1456 E11.5 mW/m2 e_FCOP0 []? The 1-sigma negative uncertainty
on the mean 0.3-10keV observed flux
assuming the canned power-law
spectrum (FixedPowFlux_neg)
1458-1466 E9.4 mW/m2 FCUP0 ? The mean 0.3-10keV unabsorbed flux
assuming the canned power-law
spectrum (FixedPowUnabsFlux)
1468-1477 E10.5 mW/m2 E_FCUP0 ? The 1-sigma positive uncertainty on
the mean 0.3-10keV unabsorbed flux
assuming the canned power-law
spectrum (FixedPowUnabsFlux_pos)
1479-1489 E11.5 mW/m2 e_FCUP0 []? The 1-sigma negative uncertainty
on the mean 0.3-10keV unabsorbed flux
assuming the canned power-law
spectrum (FixedPowUnabsFlux_neg)
--------------------------------------------------------------------------------
1491-1499 E9.4 mJ/m2/ct AECFO ? The Energy Conversion Factor from
0.3-10keV count-rate to 0.3-10keV
observed flux, assuming the canned
APEC spectrum (FixedAPECECFO)
1501-1509 E9.4 mJ/m2/ct AECFU ? The Energy Conversion Factor from
0.3-10keV count-rate to 0.3-10keV
unabsorbed flux, assuming the canned
APEC spectrum (FixedAPECECFU)
1511-1519 E9.4 mW/m2 FCAO1 ? The mean 0.3-10keV observed flux
assuming the canned APEC spectrum
(FixedAPECFlux)
1521-1530 E10.5 mW/m2 E_FCAO1 ? The 1-sigma positive uncertainty on
the mean 0.3-10keV observed flux
assuming the canned APEC spectrum
(FixedAPECFlux_pos)
1532-1542 E11.5 mW/m2 e_FCAO1 []? The 1-sigma negative uncertainty
on the mean 0.3-10keV observed flux
assuming the canned APEC spectrum
(FixedAPECFlux_neg)
1544-1552 E9.4 mW/m2 FCAU1 ? The mean 0.3-10keV unabsorbed flux
assuming the canned APEC spectrum
(FixedAPECUnabsFlux)
1554-1563 E10.5 mW/m2 E_FCAU1 ? The 1-sigma positive uncertainty on
the mean 0.3-10keV unabsorbed flux
assuming the canned APEC spectrum
(FixedAPECUnabsFlux_pos)
1565-1575 E11.5 mW/m2 e_FCAU1 []? The 1-sigma negative uncertainty
on the mean 0.3-10keV unabsorbed flux
assuming the canned APEC spectrum
(FixedAPECUnabsFlux_neg)
--------------------------------------------------------------------------------
1577-1585 E9.4 mW/m2 PECFO ? The Energy Conversion Factor from
0.3-10keV count-rate to 0.3-10keV
observed flux, assuming the power-law
spectrum interpolated from the HRs
(InterpPowECFO)
1587-1595 E9.4 mW/m2 PECFU ? The Energy Conversion Factor from
0.3-10keV count-rate to 0.3-10keV
unabsorbed flux, assuming the
power-law spectrum interpolated from
the HRs (InterpPowECFU)
1597-1606 E10.4 cm-2 NH1H ? The hydrogen column density inferred
assuming the power-law spectrum
interpolated from the HRs
(InterpPowNH)
1608-1618 E11.5 cm-2 E_NH1H []? The 1-sigma positive uncertainty
on the hydrogen column density
inferred assuming the power-law
spectrum interpolated from the HRs
(InterpPowNH_pos)
1620-1630 E11.5 cm-2 e_NH1H []? The 1-sigma negative uncertainty
on the hydrogen column density
inferred assuming the power-law
spectrum interpolated from the HRs
(InterpPowNH_neg)
1632-1641 E10.4 --- Gam1 ? The spectral photon index inferred
assuming the power-law spectrum
interpolated from the HRs
(InterpPowGamma)
1643-1653 E11.5 --- E_Gam1 []? The 1-sigma positive uncertainty
on the spectral photon index inferred
assuming the power-law spectrum
interpolated from the HRs
(InterpPowGamma_pos)
1655-1665 E11.5 --- e_Gam1 []? The 1-sigma negative uncertainty
on the spectral photon index inferred
assuming the power-law spectrum
interpolated from the HRs
(InterpPowGamma_neg)
1667-1675 E9.4 mW/m2 FIPO1 ? The mean 0.3-10keV observed flux
assuming the power-law spectrum
interpolated from the HRs
(InterpPowFlux)
1677-1686 E10.5 mW/m2 E_FIPO1 ? The 1-sigma positive uncertainty on
the mean 0.3-10keV observed flux
assuming the power-law spectrum
interpolated from the HRs
(InterpPowFlux_pos)
1688-1698 E11.5 mW/m2 e_FIPO1 []? The 1-sigma negative uncertainty
on the mean 0.3-10keV observed flux
assuming the power-law spectrum
interpolated from the HRs
(InterpPowFlux_neg)
1700-1708 E9.4 mW/m2 FIPU1 ? The mean 0.3-10keV unabsorbed flux
assuming the power-law spectrum
interpolated from the HRs
(InterpPowUnabsFlux)
1710-1719 E10.5 mW/m2 E_FIPU1 ? The 1-sigma positive uncertainty on
the mean 0.3-10keV unabsorbed flux
assuming the power-law spectrum
interpolated from the HRs
(InterpPowUnabsFlux_pos)
1721-1731 E11.5 mW/m2 e_FIPU1 []? The 1-sigma negative uncertainty
on the mean 0.3-10keV unabsorbed flux
assuming the power-law spectrum
interpolated from the HRs
(InterpPowUnabsFlux_neg)
--------------------------------------------------------------------------------
1733-1741 E9.4 mJ/m2/ct IPECFO ? The Energy Conversion Factor from
0.3-10keV count-rate to 0.3-10keV
observed flux, assuming the APEC
spectrum interpolated from the HRs
(InterpAPECECFO)
1743-1751 E9.4 mJ/m2/ct IPECFU ? The Energy Conversion Factor from
0.3-10keV count-rate to 0.3-10keV
unabsorbed flux, assuming the APEC
spectrum interpolated from the HRs
(InterpAPECECFU)
1753-1762 E10.4 cm-2 NH2A ? The hydrogen column density inferred
assuming the APEC spectrum
interpolated from the HRs
(InterpAPECNH)
1764-1774 E11.5 cm-2 E_NH2A []? The 1-sigma positive uncertainty
on the hydrogen column density
inferred assuming the APEC spectrum
interpolated from the HRs
(InterpAPECNH_pos)
1776-1786 E11.5 cm-2 e_NH2A []? The 1-sigma negative uncertainty
on the hydrogen column density
inferred assuming the APEC spectrum
interpolated from the HRs
(InterpAPECNH_neg)
1788-1797 E10.4 keV kTAH ? The temperature inferred assuming
the APEC spectrum interpolated from
the HRs (InterpAPECkT)
1799-1809 E11.5 keV E_kTAH []? The 1-sigma positive uncertainty
on the temperature inferred assuming
the APEC spectrum interpolated from
the HRs (InterpAPECkT_pos)
1811-1821 E11.5 keV e_kTAH []? The 1-sigma negative uncertainty
on the temperature inferred assuming
the APEC spectrum interpolated from
the HRs (InterpAPECkT_neg)
1823-1831 E9.4 mW/m2 FAIO1 ? The mean 0.3-10keV observed flux
assuming the APEC spectrum
interpolated from the HRs
(InterpAPECFlux)
1833-1842 E10.5 mW/m2 E_FAIO1 ? The 1-sigma positive uncertainty on
the mean 0.3-10keV observed flux
assuming the APEC spectrum
interpolated from the HRs
(InterpAPECFlux_pos)
1844-1854 E11.5 mW/m2 e_FAIO1 []? The 1-sigma negative uncertainty
on the mean 0.3-10keV observed flux
assuming the APEC spectrum
interpolated from the HRs
(InterpAPECFlux_neg)
1856-1864 E9.4 mW/m2 FAIU1 ? The mean 0.3-10keV unabsorbed flux
assuming the APEC spectrum
interpolated from the HRs
(InterpAPECUnabsFlux)
1866-1875 E10.5 mW/m2 E_FAIU1 ? The 1-sigma positive uncertainty on
the mean 0.3-10keV unabsorbed flux
assuming the APEC spectrum
interpolated from the HRs
(InterpAPECUnabsFlux_pos)
1877-1887 E11.5 mW/m2 e_FAIU1 []? The 1-sigma negative uncertainty
on the mean 0.3-10keV unabsorbed flux
assuming the APEC spectrum
interpolated from the HRs
(InterpAPECUnabsFlux_neg)
--------------------------------------------------------------------------------
1889-1892 F4.2 --- P1 ? The probability that the HR values
of this source could be obtained if
the true spectrum is an absorbed
power-law (P_pow)
1894-1897 F4.2 --- P2 ? The probability that the HR values
of this source could be obtained if
the true spectrum is an APEC (P_APEC)
1899-1907 E9.4 mJ/m2/ct FPECFO ? The Energy Conversion Factor from
0.3-10keV count-rate to 0.3-10keV
observed flux, assuming the power-law
spectral model fitted to a
custom-built spectrum (FittedPowECFO)
1909-1917 E9.4 mJ/m2/ct FPECFU ? The Energy Conversion Factor from
0.3-10keV count-rate to 0.3-10keV
unabsorbed flux, assuming the
power-law spectral model fitted to a
custom-built spectrum (FittedPowECFU)
1919-1928 E10.4 cm-2 NH2C ? The hydrogen column density inferred
assuming the power-law spectral model
fitted to a custom-built spectrum
(FittedPowNH)
1930-1939 E10.5 cm-2 E_NH2C ? The 1-sigma positive uncertainty on
the hydrogen column density inferred
assuming the power-law spectral model
fitted to a custom-built spectrum
(FittedPowNH_pos) (8)
1941-1952 E12.5 cm-2 e_NH2C []? The 1-sigma negative uncertainty
on the hydrogen column density
inferred assuming the power-law
spectral model fitted to a
custom-built spectrum
(FittedPowNH_neg) (8)
1954-1963 E10.4 --- Gamma ? The spectral photon index inferred
assuming the power-law spectral model
fitted to a custom-built spectrum
(FittedPowGamma)
1965-1975 E11.5 --- E_Gamma []? The 1-sigma positive uncertainty
on the spectral photon index inferred
assuming the power-law spectral model
fitted to a custom-built spectrum
(FittedPowGamma_pos) (8)
1977-1987 E11.5 --- e_Gamma []? The 1-sigma negative uncertainty
on the spectral photon index inferred
assuming the power-law spectral model
fitted to a custom-built spectrum
(FittedPowGamma_neg) (8)
1989-1997 E9.4 mW/m2 FPCO0 ? The mean 0.3-10keV observed flux
assuming the power-law spectral model
fitted to a custom-built spectrum
(FittedPowFlux)
1999-2008 E10.5 mW/m2 E_FPCO0 ? The 1-sigma positive uncertainty on
the mean 0.3-10keV observed flux
assuming the power-law spectral model
fitted to a custom-built spectrum
(FittedPowFlux_pos) (8)
2010-2020 E11.5 mW/m2 e_FPCO0 []? The 1-sigma negative uncertainty
on the mean 0.3-10keV observed flux
assuming the power-law spectral model
fitted to a custom-built spectrum
(FittedPowFlux_neg) (8)
2022-2031 E10.4 mW/m2 FPCU0 ? The mean 0.3-10keV unabsorbed flux
assuming the power-law spectral model
fitted to a custom-built spectrum
(FittedPowUnabsFlux)
2033-2044 E12.5 mW/m2 E_FPCU0 []? The 1-sigma positive uncertainty
on the mean 0.3-10keV unabsorbed flux
assuming the power-law spectral model
fitted to a custom-built spectrum
(FittedPowUnabsFlux_pos) (8)
2046-2057 E12.5 mW/m2 e_FPCU0 []? The 1-sigma negative uncertainty
on the mean 0.3-10keV unabsorbed flux
assuming the power-law spectral model
fitted to a custom-built spectrum
(FittedPowUnabsFlux_neg) (8)
2059-2065 F7.1 --- Cstat ? The C-statistic from the power-law
spectral fit to the custom-built
spectrum (FittedPowCstat)
2067-2069 I3 --- DOF ? The number of degrees of freedom in
the power-law spectral fit to the
custom-built spectrum (FittedPowDOF)
2071-2076 F6.2 --- chi2r ? The Churazov-weighted reduced chi2
from the power-law spectral fit to
the custom-built spectrum
(FittedPowReducedChi2)
--------------------------------------------------------------------------------
2078-2086 E9.4 mJ/m2/ct ACECFO ? The Energy Conversion Factor from
0.3-10keV count-rate to 0.3-10keV
observed flux, assuming the APEC
spectral model fitted to a
custom-built spectrum
(FittedAPECECFO)
2088-2096 E9.4 mJ/m2/ct ACECFU ? The Energy Conversion Factor from
0.3-10keV count-rate to 0.3-10keV
unabsorbed flux, assuming the APEC
spectral model fitted to a
custom-built spectrum
(FittedAPECECFU)
2098-2107 E10.4 cm-2 NH2AC ? The hydrogen column density inferred
assuming the APEC spectral model
fitted to a custom-built spectrum
(FittedAPECNH)
2109-2119 E11.5 cm-2 E_NH2AC []? The 1-sigma positive uncertainty
on the hydrogen column density
inferred assuming the APEC spectral
model fitted to a custom-built
spectrum (FittedAPECNH_pos) (8)
2121-2132 E12.5 cm-2 e_NH2AC []? The 1-sigma negative uncertainty
on the hydrogen column density
inferred assuming the APEC spectral
model fitted to a custom-built
spectrum (FittedAPECNH_neg) (8)
2134-2142 E9.4 keV kTAC ? The temperature inferred assuming
the APEC spectral model fitted to a
custom-built spectrum (FittedAPECkT)
2144-2154 E11.5 keV E_kTAC []? The 1-sigma positive uncertainty
on the temperature inferred assuming
the APEC spectral model fitted to a
custom-built spectrum
(FittedAPECkT_pos) (8)
2156-2166 E11.5 keV e_kTAC []? The 1-sigma negative uncertainty
on the temperature inferred assuming
the APEC spectral model fitted to a
custom-built spectrum
(FittedAPECkT_neg) (8)
2168-2176 E9.4 mW/m2 FACO0 ? The mean 0.3-10keV observed flux
assuming the APEC spectral model
fitted to a custom-built spectrum
(FittedAPECFlux)
2178-2187 E10.5 mW/m2 E_FACO0 ? The 1-sigma positive uncertainty on
the mean 0.3-10keV observed flux
assuming the APEC spectral model
fitted to a custom-built spectrum
(FittedAPECFlux_pos) (8)
2189-2199 E11.5 mW/m2 e_FACO0 []? The 1-sigma negative uncertainty
on the mean 0.3-10keV observed flux
assuming the APEC spectral model
fitted to a custom-built spectrum
(FittedAPECFlux_neg) (8)
2201-2210 E10.4 mW/m2 FACU0 ? The mean 0.3-10keV unabsorbed flux
assuming the APEC spectral model
fitted to a custom-built spectrum
(FittedAPECUnabsFlux)
2212-2223 E12.5 mW/m2 E_FACU0 []? The 1-sigma positive uncertainty
on the mean 0.3-10keV unabsorbed flux
assuming the APEC spectral model
fitted to a custom-built spectrum
(FittedAPECUnabsFlux_pos) (8)
2225-2236 E12.5 mW/m2 e_FACU0 []? The 1-sigma negative uncertainty
on the mean 0.3-10keV unabsorbed flux
assuming the APEC spectral model
fitted to a custom-built spectrum
(FittedAPECUnabsFlux_neg) (8)
2238-2245 F8.1 --- CstatA ? The C-statistic from the APEC
spectral fit to the custom-built
spectrum (FittedAPECCstat)
2247-2249 I3 --- DOFA ? The number of degrees of freedom in
the APEC spectral fit to the
custom-built spectrum (FittedAPECDOF)
2251-2258 F8.2 --- chi2rA ? The Churazov-weighted reduced chi2
from the APEC spectral fit to the
custom-built spectrum
(FittedAPECReducedChi2)
--------------------------------------------------------------------------------
2260 I1 --- HasSpec ? Whether a custom-built spectrum was
created for this source (HasSpec)
2262-2264 I3 --- Next ? The number of external sources found
to agree spatially with this one at
the 3-sigma level
(NumExternalMatches)
2266-2268 I3 --- Next2 ? The number of external sources found
to agree spatially with this one at
the 3-sigma level, excluding 2MASS,
USNO-B1 and ALLWISE matches
(NumExternalMatches_slim)
2270 I1 --- ROSHRI ? Whether the sources is spatially
within 3 sigma of a source in the
Rosat HRI catalogue (Cat. IX/28)
(MatchInROSHRI)
2272 I1 --- 2RXS ? Whether the sources is spatially
within 3 sigma of a source in the
2RXS catalogue (Cat. J/A+A/588/A103)
(MatchIn2RXS)
2274 I1 --- 3XMMDR8 ? Whether the sources is spatially
within 3 sigma of a source in the
3XMM-DR8 catalogue (Cat. IX/55)
(MatchIn3XMMDR8)
2276 I1 --- 3XMMStack ? Whether the sources is spatially
within 3 sigma of a source in the
3XMM-DR7s (stacked) catalogue
(Cat. IX/56) (MatchIn3XMM_Stack)
2278 I1 --- XMMSL2 ? Whether the sources is spatially
within 3 sigma of a source in the
XMMSL2 catalogue (Cat. IX/53)
(MatchInXMMSL2)
2280 I1 --- SwiftFT ? Whether the sources is spatially
within 3 sigma of a source in the
SwiftFT catalogue
(Cat. J/A+A/528/A122)
(MatchInSwiftFT)
2282 I1 --- 1SWXRT ? Whether the sources is spatially
within 3 sigma of a source in the
1SWXRT catalogue
(Cat. J/A+A/551/A142)
(MatchIn1SWXRT)
2284 I1 --- XRTGRB ? Whether the sources is spatially
within 3 sigma of an XRT GRB
afterglow (MatchInXRTGRB)
2286 I1 --- SDSSQSO ? Whether the sources is spatially
within 3 sigma of a source in the
SDSS QSO DR14 catalogue
(MatchInSDSSQSO)
2288 I1 --- 2MASS ? Whether the sources is spatially
within 3 sigma of a source in the
2MASS catalogue (Cat. II/246)
(MatchIn2MASS)
2290 I1 --- USNOB1 ? Whether the sources is spatially
within 3 sigma of a source in the
USNO-B1 catalogue (Cat. I/284)
(MatchInUSNOB1)
2292 I1 --- 2CSC ? Whether the sources is spatially
within 3 sigma of a source in the
2CSC catalogue (MatchIn2CSC)
2294 I1 --- 1SXPS ? Whether the sources is spatially
within 3 sigma of a source in the
1SXPS catalogue (Cat. IX/43)
(MatchIn1SXPS)
2296 I1 --- ALLWISE ? Whether the sources is spatially
within 3 sigma of a source in the
ALLWISE catalogue (Cat. II/328)
(MatchInALLWISE)
--------------------------------------------------------------------------------
Note (1): A value of -1 indicates that the source position was never fully
in the field of view.
Note (2): Swift Mission Elapsed Time (MET) is seconds (TT) since
2001 Jan 01 00:00:00
Note (3): Detection flags areas follows:
0 = Good
1 = Reasonable
2 = Poor
+4 = The source position is consistent with that of a known extended source
+8 = The source is likely an alias of a badly-fitted piled up source
+16 = The source lies in a region marked as contaminated during the visual
screening
Note (4): Field flags are bitwise with the following warnings bits:
0 (val=1): Field contains stray light.
1 (val=2): Field contains diffuse emission or artifacts.
2 (val=4): Field contains stray light that could not be adequately modelled.
3 (val=8): Field contains a bright, pile up source which was not properly
fitted in some bands.
Note (5): Optical loading occurs when a high flux of optical photons deposits
sufficient charge in the XRT to produce spurious X-ray events. See
https://www.swift.ac.uk/analysis/xrt/optical_loading.php
If this is 0 there is no warning, otherwise there is a nearby optical source
brighter than the level at which optical loading becomes a concern; the value
indicates how many magnitudes brighter than that level the source is
Note (6): PVAR
Note (7): Provenance of the summary spectral fit as follows:
0 = fixed spectrum
1 = HR-derived
2 = fitted spectrum
Note (8): Some of the properties derived from spectral fitting may have error
values with the wrong sign, i.e. positive values for the negative errors and
vice versa. These indicated cases where xspec was unable to properly determine
the uncertainty on the parameter.
--------------------------------------------------------------------------------
Acknowledgements:
Philip A. Evans, pae9(at)leicester.ac.uk
(End) Phil A. Evans [Leicester], Patricia Vannier [CDS] 20-Nov-2019