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 Database: NGC2237CXO
   NGC 2237 Chandra X-Ray Point Source Catalog
Database Index | Basic Search | Advanced Search
 Name Resolver
Name:

 Search Co-ordinates
Co-ords:

Co-ordinate system:
Equatorial Ecliptic Galactic
Equinox: 1950 2000

 Search Type
Cone search, radius: arcmin.
Square search, width: arcmin.
Rectangle search, size: arcmin
 Output Options
 Output coordinates in:
Decimal  Sexagesimal
 Output system:
Equatorial   Ecliptic   Galactic
 Output epoch:
J2000   B1950
 Output format:
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Definition
 
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 SOURCE_NUMBER 
Sequential Identification Number for Each Source in Catalog
 SOURCE_SAMPLE 
Flag [PT] Indicates Published Table/Sample from Which Entry Originates
 NAME 
IAU-Style Source Designation
 RA 
Right Ascension
 DECL 
Declination
 LII 
Galactic Longitude
 BII 
Galactic Latitude
 ERROR_RADIUS 
Estimated Random Component of Position Error (arcsec)
 OFF_AXIS 
Off-Axis Angle (arcmin)
 COUNTS 
Estimated Net 0.5-8 keV Counts
 COUNTS_ERROR 
Poisson-Based 1-Sigma Uncertainty Counts
 BCK_COUNTS 
Background 0.5-8 keV Counts
 HB_COUNTS 
Estimated Net 2-8 keV Counts
 PSF_FRACTION 
PSF Fraction Enclosed within Extraction Region
 SIGNIFICANCE 
Photometric Significance
 LOG_BCK_PROB_LIMIT 
Limit Flag for Log_Bck_Prob
 LOG_BCK_PROB 
Logarithm of Background Probability
 SOURCE_ANOMALY_FLAG 
Flag [g] Indicates Source Anomaly
 SOURCE_VARIABLE_FLAG 
Flag [abc] Indicates Variability Characterization
 EXPOSURE 
Effective Exposure Time (s)
 MEDIAN_ENERGY 
Background-Corrected Median Photon Energy (keV)
 LOG_NH 
Logarithm of Hydrogen Column Density
 LOG_NH_FLAG 
Flag Indicates Log_NH Value Was Frozen in the Fit
 LOG_NH_NEG_ERR 
Lower 90%-Confidence Interval in Log_NH
 LOG_NH_POS_ERR 
Upper 90%-Confidence Interval in Log_NH
 APEC_KT 
Plasma Temperature (keV)
 APEC_KT_FLAG 
Flag Indicates Plasma Temperature Value Was Frozen in the Fit
 APEC_KT_NEG_ERR 
Lower 90%-Confidence Interval in Plasma Temperature
 APEC_KT_POS_ERR 
Upper 90%-Confidence Interval in Plasma Temperature
 LOG_EM 
Logarithm of Emission Measure (Distance=1.4 kpc)
 LOG_EM_NEG_ERR 
Lower 90%-Confidence Interval in Log_EM
 LOG_EM_POS_ERR 
Upper 90%-Confidence Interval in Log_EM
 LOG_SB_LX_OBS 
Logarithm of 0.5-2 keV Luminosity
 LOG_HB_LX_OBS 
Logarithm of 2-8 keV Luminosity
 LOG_HB_LX 
Logarithm of Absorption-Corrected 2-8 keV Luminosity
 LOG_LX_OBS 
Logarithm of 0.5-8 keV Luminosity
 LOG_LX 
Logarithm of Absorption-Corrected 0.5-8 keV Luminosity
 USNO_NAME 
USNO-B1.0 Source Identification
 BMAG 
The B-Band Magnitude
 RMAG 
The R-Band Magnitude
 IMAG 
The I-Band Magnitude
 TWOMASS_NAME 
2MASS Source Identification
 FLAMINGOS_ID 
FLAMINGOS Source Identification
 JMAG 
The J Band Magnitude
 HMAG 
The H Band Magnitude
 KMAG 
The K_S Band Magnitude
 TWOMASS_FLAGS 
Flags Indicates Quality of the 2MASS Photometry

 Output number of lines:  
If you have any problems, please consult the help page or mail ledas-help@star.le.ac.uk
 
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