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ROSHRI - ROSAT Results Archive Sources for the HRI |
HEASARC Archive |
The ROSHRI table excludes sources that meet the following parameter criteria: false_det = 'T' or deferred = 'T' or not_checked = 'T' or un_unique ='T'. See the documentation below for descriptions of these parameters.
These data have been screened by ROSAT data centers in the US, Germany, and the UK as a step in the production of the ROSAT RESULTS ARCHIVE. The RRA contains extracted source and associated products with an indication of reliability for the primary parameters.
http://www.mpe.mpg.de/xray/wave/rosat/doc/ruh/index.php http://heasarc.gsfc.nasa.gov/docs/rosat/rosdocs.html
http://heasarc.gsfc.nasa.gov/docs/rosat/rra/RRA.html http://hea-www.harvard.edu/rosat/rra.html http://www.mpe.mpg.de/xray/wave/rosat/rra/index.php http://www.aip.de/groups/xray/rosat/rra.html http://ledas-www.star.le.ac.uk/rra
All flags are LOGICAL, i.e. they have a value of TRUE or FALSE. A flag with a TRUE value indicates a possible problem with a source parameter. Thus, a source with no discernable problem would have all flags set to FALSE.
Sequence flags: =============== FLAG NAME "True" condition --------- ---------------- ASP_SUSP obvious aspect problems (sources appear multiple or have obvious ellipticity) EXT_EMIS presence of extended emission over most of the field FIELD_FDET one or more detected sources deemed false DEFERRED data screening not done MISS_SRC one or more obvious sources not detected by SASS BKG_SUSP Field background may be incorrect (due to inclusion of high background intervals or extended emission) SLIS_MIS source list is missing (no sources detected by SASS or source detection stopped) Source Flags: ============= FLAG NAME "True" condition ---------- ---------------- CONFUSED close sources confused detection algorithm DET_STRUCT source near detector structure EXTENDED source is probably resolved FALSE_DET detection judged to be spurious INTEN_SUSP source brightness suspect MULT_DET complex emission split into individual sources NOT_CHECKED source not checked POS_SUSP source position suspect ASSOCIATED another source nearby may influence derived source quantities VARFLG_SUSP SASS variability flag suspect WITHIN_EXT source within extended emission UN_UNIQUE source matched with another source which was identified in a smaller detect cell (HRI only)
RA
Source right ascension (degrees)
Dec
Source declination (degrees)
LII
Source Galactic Longitude (degrees)
BII
Source Galactic Latitude (degrees)
Exposure
Exposure live time (seconds)
EPI
Edge proximity indicator
X
Unblocked x source position (0.5 arcsec/pixel)
Y
Unblocked y source position (0.5 arcsec/pixel)
XY_Error
Error in position (0.5 arcsec/pixel)
Im_X
Blocked x source position (8 arcsec/pixel)
Im_Y
Blocked y source position (8 arcsec/pixel)
Lev1_X
SASS level 1 x coordinate (0.5 arcsec/pixel)
Lev1_Y
SASS level 1 y coordinate (0.5 arcsec/pixel)
Offaxis
Off axis angle averaged over observation (arcmin)
Cir_Rad
Radius of source circle for source intensity measurement (arcsec)
Gross_Cts
Total (source + background) counts within CIR_RAD
Gross_Cts_Error
Error on total (source + background) counts within CIR_RAD
Cir_Bkg
Bkg counts inside CIR_RAD
Count_Rate
Estimate of net rate in the ROSAT band (roughly 0.2-2.4 keV), in
ROSAT counts/sec.
Count_Rate_Error
Error of net rate (count/sec)
_1keV_QE
1 keV Quantum efficiency which has been used to derive Count_Rate
_1keV_Vig
1 keV vignetting correction for source which has been used to derive Count_Rate
_1keV_CSC
1 keV scattering correction for source which has been used to derive Count_Rate
X_Size
X source detect cell size (arcsec)
Y_Size
Y source detect cell size (arcsec)
Box_Cts
Total counts in detection box
Threshold
Threshold for detection at this location (counts)
SNR
Signal-to-noise ratio for detection
Src_Prob
Probability that the source is unresolved: a statistic which measures how well the radial distribution matches the expected PRF. A good match produces Src_Prob=1.0
X_EC
X position of extended circle (0.5 arcsec/pixel)
Y_EC
Y position of extended circle (0.5 arcsec/pixel)
Rad_EC
Radius of the extended circle (arcsec)
EC_CSC
Extended circle scattering correction
Size_Cor
Extended circle size correction
Size_Cor_Error
Error of extended circle size correction
Begin_Date
Observation start date
End_Date
Observation finish date
ROR
ROSAT Observation Request number assigned to the observing program.
Typically the target of each pointed observation will have a unique ROR
number assigned to it.
Srcnum
Source Number from SASS for the given sequence
QC_Date
Date of sequence and source checking (yymmdd)
SeqID
Sequence identification (like rh400623n00)
ObsID
Observation ID (like US400623H.N1)
Site
Processing Site
SrcFlags
Summary of source flags. This is a string of abbreviations for each source
flag which is set to TRUE, and indicates a possible problem with the source.
The abbreviations used are c=CONFUSED, d=DET_STRUCT, e=EXTENDED f=FALSE_DET,
i=INTEN_SUSP,l=LTC_SUSP, s=SPEC_SUSP, m=MULT_DET, n=NOT_CHECKED,
p=POS_SUSP,a=ASSOCIATED, v=VARFLG_SUSP, w=WITHIN_EXT.
Confused
Close sources confused detect
Det_Struct
Source near detector structure
Extended
Source extended
False_Det
Detection of unreal or false source
Inten_Susp
Source brightness suspect
Spare_Ltc
Source lightcurve suspect (this flag is currently not filled since
no lightcurves are available for HRI sources)
Mult_Det
Complex emission split
Not_Checked
Weak source below SNR threshold used for checking
Pos_Susp
Source position suspect
Associated
Associated source nearby
Varflg_Susp
Source variability indicator from SASS is suspect
Within_Ext
Source within extended emission
Un_Unique
Detection is matched to another detection with a smaller detect cell size
SeqFlags
Summary of sequence flags. This is a string of abbreviations for each
sequence flag which is set to TRUE, and indicates a possible problem with the
sequence. The abbreviations used are A=ASP_SUSP, E=EXT_EMIS, F=FIELD_FDET,
D=DEFERRED, M=MISS_SRC, B=BKG_SUSP, S=SLIS_MIS, X=EXPO_MAP.
Deferred
Field not flagged by operator
Asp_Susp
Aspect solution suspect
Bkg_Susp
Background suspect
Ext_Emis
Extended emission in field
Field_Fdet
False detections in field
Src_Miss
Sources in field missed
Slis_Mis
Source list missing
Vary
Source variability flag from SASS
Source_Name
Name of source following IAU conventions, like: 2RXH J153127.5+312918. Note: Source names in 1st release of catalogue are blank; these names will be defined from a final source matching of detections.
Detection_Name
Name of catalogued detection following IAU conventions, like: 1RXH J153127.5+312918. Note: The detection name is NOT UNIQUE. Detections with the same position will have the same detection name; such detections may or may not represent the same astrophysical source.
Sequence_Detection_Name
Unique name for detection, based on the observation sequence id and the number of the detection in the source list for that sequence, like: 1rh200855n00.123
Comments
Source comment which may have been assigned by the checker
Qcname
Checker ID
Qcsite
Checker site