SAXWFCCAT - BeppoSAX Wide Field Camera X-Ray Source Catalog
This table contains the catalog of X-ray sources detected by the
two Wide Field Cameras (WFCs) in complete observations on board BeppoSAX
during its 6 years of operational lifetime, i.e., between April 1996 and
April 2002. The BeppoSAX WFCs were coded mask instruments sensitive in the
2 - 28 keV energy band with a 40 x 40 square degree fields of view,
pointing in opposite directions and perpendicularly to the BeppoSAX
Narrow Field Instruments (NFI). The WFCs were usually operated
simultaneously to NFI observations, each lasting up to several days.
The WFCs observed thus the entire sky several times with a typical
sensitivity of 2 to 10 mCrab.
A systematic analysis of all WFC observations in the BeppoSAX archive
has been carried out using the latest post-mission release of the WFC
analysis software and calibrations. The catalog includes 253
distinct sources, obtained from a total sample of 8253 WFC detections.
The BeppoSAX WFC X-ray source catalogue
Verrecchia F., in 't Zand J.J.M., Giommi P., Santolamazza P., Granata S.,
Schuurmans J.J., Antonelli A.
<Astron. Astrophys. 472, 705 (2007)>
=2007A&A...472..705V (SIMBAD/NED BibCode)
This table was created by the HEASARC in November 2007 based on
CDS catalog J/A+A/472/705 file table3.dat.
The recommended designation for the X-ray source, using the prefix
'SAXWFC J' (for BeppoSAX, Wide Field Camers) and the truncated J2000
coordinates of the source, e.g., 'SAXWFC JHHMMm+DDMM.m'.
This flag parameter indicates one of the following detection
h = detected with the highest SNR in a softer band, 2 - 5.5 or 2 - 3.2 keV
with respect to the catalogue reference 2 - 8 keV band
i = detected with the highest SNR in a harder band, 8 - 19, 5.5 - 11, 6 - 13
or 11 - 19 keV with respect to the catalogue reference 2 - 8 keV band
j = detected with the highest SNR in a wider band, 2 - 19 or 2 - 26 keV
band, with respect to the catalogue reference 2 - 8 keV band
k = source detected in the first processing stage only
The Right Ascension of the X-ray source in the selected equinox. This
was given in J2000.0 coordinates to a precision of 0.1 seconds of time in the
The Declination of the X-ray source in the selected equinox. This was
given in J2000.0 coordinates to a precision of 0.1 arcseconds in the original
The Galactic Longitude of the X-ray source.
The Galactic Latitude of the X-ray source.
The position error of the X-ray source, in arcseconds (this
was converted by the HEASARC from the original arcminutes units). This is
the mean 99% confidence level error in X and Y error added in quadrature to
a systematic error of 78 arcseconds (1.3 arcminutes).
The net exposure time on the X-ray source, in seconds
(this was converted by the HEASARC from the original kiloseconds units),
for the detection with the maximum SNR.
The unabsorbed 2 - 10 keV flux of the X-ray source. in
erg/s/cm^2, for the detection with the maximum SNR.
The error in the unabsorbed 2 - 10 keV flux of the
X-ray source. in erg/s/cm^2, for the detection with the maximum SNR.
The detection signal-to-noise ratio (SNR) in the 2 - 8 keV band.
The detection signal-to-noise ratio (SNR) in the 8 - 19 keV band.
The number of detections of the X-ray source.
The total exposure time on the X-ray source, in seconds (this
was converted by the HEASARC from the original kiloseconds units).
The flux-weighted mean of the unabsorbed 2 - 10 keV flux among all
the detections of the X-ray source, in units of erg/s/cm^2.
The standard deviation of the flux-weighted mean of the
unabsorbed 2 - 10 keV flux among all the detections of the X-ray source,
in units of erg/s/cm^2.
The reduced chi-squared of the X-ray source detections
in the 2 - 10 keV band. The HEASARC believes that is the value obtained from
fitting the observed values with a constant source model, i.e., higher values
(>> 1) are an indication that the source is variable.
The maximum unabsorbed 2 - 10 keV flux of the X-ray source among
all the source detections, in erg/s/cm^2.
The minimum unabsorbed 2 - 10 keV flux of the X-ray source among
all the source detections, in erg/s/cm^2,
The identification of the WFC source obtained from comparison
with public databases.
The source classification using the following abbreviations:
AGN = active galactic nucleus
AM Her = AM Her type star
AXP = anomalous X-ray pulsar
B = burster
Be = B-emission star
BH = black hole
BY Dra = BY Dra type star
ClG = cluster of galaxies
CV = cataclysmic variable
D = dipper
DN = dwarf nova
E = intermediate objects
GlC = in globular cluster
IP = intermediate polar
HMXRB = high-mass X-ray binary
LBV = luminous blue variable type star
LMXRB = low-mass X-ray binary
P = polar
QSO = quasar
RG = radio galaxy
RP = radio pulsar
RSCVn = RS CVn type star
Seyfert 1 = Seyfert galaxy type 1
Seyfert 2 = Seyfert galaxy type 2
SNR = Supernova remnant
Sy = Symbiotic star
T = transient source
U Gem = U Gem type star
WD = White dwarf
XB = X-ray binary
XP = X-ray pulsar
The HEASARC Browse object classification for the source based on the
value of the source_type parameter.
Questions regarding the SAXWFCCAT database table can be addressed to the
HEASARC User Hotline.
If you have any problems, please consult the help
page or mail email@example.com