VizieR

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VizieR

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IX/31/wgacat The WGACAT version of ROSAT sources (White+ 2000)
The full catalogue (88621 rows)
  recno=2256
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ColumnValue  Explain   (UCD)
_RAJ200005 18 44.808 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000-69 39 07.56 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195005 19 08.584 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950-69 42 06.24 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon280.440223 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat-33.319440 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
2256recno 2256  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

1WGAJ0518.7-6939  (i) Source name (based on J2000 position) (Note 2)   (meta.id;meta.main)
f_1WGA*   [*] '*' indicates multiple entries with the same 1WGA name (Note 2)   (meta.code)
RAJ2000079.6867 deg (i) Right ascension of source (J2000) (pos.eq.ra;meta.main)
DEJ2000-69.6521 deg (i) Declination of source (J2000) (pos.eq.dec;meta.main)
Xpos11595.0 pix The source coordinate in original pixels (pos.cartesian.x;instr.det)
Ypos 7548.5 pix The source coordinate in original pixels (pos.cartesian.y;instr.det)
GLON280.44 deg [0,360] Galactic Longitude (pos.galactic.lon)
GLAT-33.32 deg Galactic Latitude (pos.galactic.lat)
Count 0.05120 ct/s Background subtracted count rate accumulated in PHA bins 24 to 224 (0.24-2.0keV) (phot.count;em.X-ray)
e_Count 0.00690 ct/s Mean error on Count (stat.error;phot.count)
Fx 7.680e-13 mW/m2 X-ray flux using a constant correction factor of 1.5x10–11 mW/m2 (erg/s/cm2). (phot.flux;em.X-ray)
Vign 1.22  Telescope vignetting correction (Note 1)   (instr.param)
ErrorRad 50 arcsec 90% confidence source error radius. (stat.error)
BoxSize 110 arcsec Optimum source half box size. (instr.param)
RAc.deg 81.1786 deg Image center right ascension. (Note 2)   (pos.eq.ra;obs.image)
DEc.deg-69.6151 deg Image center declination. (Note 2)   (pos.eq.dec;obs.image)
Dist.c31.231 arcmin Offset of detected position from (RAc,DEc) (pos.angDistance)
RAt 81.2504 deg Target right ascension (J2000) (Note 3)   (pos.eq.ra)
DEt-69.6401 deg Target declination (J2000) (Note 3)   (pos.eq.dec)
Dist.t32.641 arcmin Offset of detected position from (RAt,DEt) (pos.angDistance)
OBJECTXRT/SPEC/FLUX N1  Original field name as found in event list (meta.id;time.duration;obs.field)
ROR142011   [100000/999999] number of unique sequences (meta.number)
StartDate 1994-09-07T11:31:53 s Observation Starting date/time, DMF secs (Note 13)   (time.start;obs)
EndDate 1994-09-08T00:00:00 s Observation Ending date/time, DMF secs (Note 13)   (time.end;obs)
Ndetect 18  Total number of detections in the image. (meta.number)
IDno 10  The source number in the field (Note 4)   (meta.id;obs.field)
ImageFilerp142011n00_out  FITS image file name (obs.image)
EventFilerp142011n00  Event file name (meta.id;time.duration;meta.file)
SourceIDrp142011n00_out_10  Unique source identification (Note 5)   (meta.id)
PrBkg 0.0   [0.0] Probability that the detection is due to a background fluctuation (instr.background)
SNR 7.43  The signal to noise ratio of the source (stat.snr)
Qflag12   [5,12] Quality flag from bad to good (Note 6)   (meta.code.qual)
RegionO   [IO] Region of the ROSAT image (I=in, O=out) (meta.note)
Zoom20  Rebinning factor of the image (instr.param)
Bgnd 5.663e-08 ct/pix/s Background count rate (arith.rate;instr.background)
ExpTime 2643 s Exposure time of the field (time.epoch;obs.field)
SR1 0.6981  Softness ratio 11-39/40-85 (Note 7)   (phot.flux;arith.ratio)
e_SR1 0.1496  Mean error on SR1 (stat.error)
HR1 0.7925  Hardness ratio 86-200/40-85 (Note 7)   (phot.flux;arith.ratio)
e_HR1 0.1637  Mean error on HR1 (stat.error)
SR2 1.6250  Hard softness ratio 50-86/87-129 (Note 7)   (phot.flux;arith.ratio)
e_SR2 0.3651  Mean error on SR2 (stat.error)
HR2 0.1875  Hard hardness ratio 130-240/87-129 (Note 7)   (phot.flux;arith.ratio)
e_HR2 0.0834  Mean error on HR2 (stat.error)
Counts 132 ct Total number of counts detected (meta.number)
e_Counts 11.49 ct Mean error on Counts (stat.error;phot.count)
Count1 37 ct Low band (11-39=0.1-0.4keV) counts (phot.count;em.X-ray)
e_Count1 6.08 ct Mean error on Count1 (stat.error)
Count2 53 ct Mid band (40-85=0.4-0.9keV) counts (phot.count;em.X-ray)
e_Count2 7.28 ct Mean error on Count2 (stat.error)
Count3 42 ct High band (86-200=0.92.0keV) counts (phot.count;em.X-ray)
e_Count3 6.48 ct Mean error on Count3 (stat.error)
Chi2 2.769  Variability test (Note 8)   (src.var)
XidFlag1   [1] 1 if ID with pre-Rosat X-ray source (meta.code)
Xid1LMC 0519.1-694  First name of X-ray identifier (meta.id)
Xid2LMC 0519.1-694  2nd name of X-ray identifier (meta.id)
Xid3   3rd name of X-ray identifier (meta.id)
Xid4   4th name of X-ray identifier (meta.id)
IPCcount 0.01 ct/s Count rate detected by the Einstein IPC. (phot.count;em.X-ray)
e_IPCcount 0.00 ct/s Mean error on IPCcount (stat.error)
IPC/PSPC 1.758e-01   Ratio of IPC/PSPC count rates. (phot.flux;arith.ratio)
e_IPC/PSPC 7.164e-03   Mean error on IPC/PSPC (stat.error)
OIdFlag1   [1] 1 if ID with optical source (meta.code)
OId1MACS J0518-696  First name of optical counterpart (meta.id.cross)
OId2MACS J0518-696  2nd name of optical counterpart (meta.id)
OId3   3rd name of optical counterpart (meta.id)
OId4NGC1918  4th name of optical counterpart (meta.id)
SIMBADNGC1918  Name in SIMBAD data-base (if existing, all blanks removed) (meta.id;meta.dataset)
Vmag 0.00 mag V magnitude of any optical counterpart (phot.mag;em.opt.V)
Fx/Fo    X-ray over optical flux ratio (Note 11)   (phot.flux;arith.ratio)
AoX    Optical to X-ray slope (Note 12)   (spect.index)
z 0.0000   Redshift of counterpart (src.redshift)
Class2900   Source classification (Note 14)   (src.class)
GSCseq    GSC Identification: sequence number (meta.id)
GSCreg    GSC Identification: region numer (meta.id)
QVmag    GSC quasi-V magnitude (phot.mag;em.opt.V)
QBmag    GSC quasi-B magnitude (phot.mag;em.opt.B)
GSCext    [NOnoYEye] GSC Extension flag (meta.code)
RIdFlag    [1] 1 if ID with radio source (meta.code)
RId1   First name of radio source (meta.id.cross)
RId2   Second name of radio source (meta.id)
RId3   Third name of radio source (meta.id)
S80cm  mJy radio flux at 80 cm (0.4GHz) (phot.flux.density;em.radio.200-400MHz)
S20cm  mJy radio flux at 20 cm (1.5GHz) (phot.flux.density;em.radio.1500-3000MHz)
S6cm  mJy radio flux at 6 cm (5.0GHz) (phot.flux.density;em.radio.3-6GHz)
IRAS   Name in IRAS (II/125 or II/156) (meta.id)
IdCat    [HIPC ] Catalog used for optical position (Note 9)   (instr.setup)
IDoffset  arcmin Offset of Id star from ROSAT position (meta.id)
oRA  arcmin Offset from reference star (Note 9)   (pos.eq.ra;arith.diff)
oDE  arcmin Offset from reference star (Note 9)   (pos.eq.dec;arith.diff)
Vno    [1] Version of WGACAT (meta.code)
MPEnameJ051842-6939.1  Name in MPE catalog IX/11 (meta.id)
MPEflag1   [1,2] Comparison with MPE IX/11 (Note 10)   (meta.code)
MPEcount 0.10370 ct/s Count from MPE (phot.count;em.X-ray)
e_MPEcount 0.02514 ct/s Mean error on MPEcount (stat.error)
NH21cm 6.6e+20 cm-2 21cm number of H from Starke et al. (meta.id)
B-V  mag B-V colour (phot.color;em.opt.B;em.opt.V)
Ori2   [1,2] 1 for WGACAT (old), 2 for WGACAT2 (new) (meta.code)

HEASARCWGACAT  Find the related data products available at HEASARC (meta.ref.url)
  
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