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 Database: CYGOB2CXO2
   Cygnus OB2 Association Chandra X-Ray Point Source Catalog 2
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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<- Sort by distance from search centre (default)
 SOURCE_NUMBER 
Sequential Identification Number for Each Source in Catalog
 ALT_NAME 
Alternative Catalog-Based Source Designation
 NAME 
Source Designation
 RA 
Right Ascension
 DECL 
Declination
 LII 
Galactic Longitude
 BII 
Galactic Latitude
 OFF_AXIS 
Off-Axis Angle (arcmin)
 EXTRACTION_AREA 
Source Extraction Region Area (pixels)
 PSF_FRACTION 
Point Spread Function Fraction in Extraction Region
 SNR 
Source Detection Significance
 LOG_BCK_PROB 
Logarithm of Poisson Probability
 EXPOSURE 
Full Exposure Time (s)
 MEDIAN_ENERGY 
The 0.5-8keV Median Energy
 LOG_PROB_CONSTANT 
Logarithm of Kolmogorov-Smirnov Probability
 COUNTS 
Net 0.5-8keV Band Counts
 COUNTS_POS_ERR 
Upper 1-Sigma Error on Net 0.5-8keV Band Counts
 COUNTS_NEG_ERR 
Lower 1-Sigma Error on Net 0.5-8keV Band Counts
 COUNT_RATE 
Net 0.5-8keV Band Count Rate
 SB_COUNT_RATE 
Net 0.2-2keV Band Count Rate
 HB_COUNT_RATE 
Net 2-8keV Band Count Rate
 FIELD_NUMBER 
Source Field Number [1-3]
 SOURCE_FLAG 
Flag [EN] Indicates Warning
 SPECTRAL_MODEL 
Model Fit Type
 NH_LIMIT 
Limit Flag for Logarithm of Hydrogen Column Density
 LOG_NH 
Logarithm of Hydrogen Column Density
 LOG_NH_POS_ERR 
Upper 90%-Confidence Interval in Logarithm of Hydrogen Column Density
 LOG_NH_NEG_ERR 
Lower 90%-Confidence Interval in Logarithm of Hydrogen Column Density
 APEC_KT_LIMIT 
Limit Flag for kT
 APEC_KT 
Model Fit Thermal Plasma Temperature
 APEC_KT_POS_ERR 
Upper 90%-Confidence Interval in kT
 APEC_KT_NEG_ERR 
Lower 90%-Confidence Interval in kT
 LOG_LX 
Logarithm 0.5-8keV Band Luminosity
 LOG_LX_POS_ERR 
Upper 90%-Confidence Interval in Log_Lx
 LOG_LX_NEG_ERR 
Lower 90%-Confidence Interval in Log_Lx
 LOG_SB_LX 
Logarithm 0.5-2keV Band Luminosity
 LOG_HB_LX 
Logarithm 2-8keV Band Luminosity
 RA_OIR 
Right Ascension of Optical/Infrared Source
 DEC_OIR 
Declination of Optical/Infrared Source
 OFFSET 
X-Ray and Optical/NIR Position Offset (arcsec)
 RMAG 
IPHAS r-prime Band Magnitude
 RMAG_ERROR 
Error in IPHAS r-prime Band Magnitude
 IMAG 
IPHAS i-prime Band Magnitude
 IMAG_ERROR 
Error in IPHAS i-prime Band Magnitude
 HALPHA_MAG 
IPHAS H-alpha Band Magnitude
 HALPHA_MAG_ERROR 
Error in H-alpha Band Magnitude
 JMAG 
The J Band Magnitude
 JMAG_ERROR 
Error in Jmag
 HMAG 
The J Band Magnitude
 HMAG_ERROR 
Error in Hmag
 KS_MAG 
The Ks Band Magnitude
 KS_MAG_ERROR 
Error in Ks_mag
 NEAR_IR_FLAGS 
Near-IR Photometry Source Flag
 TWOMASS_FLAGS 
2MASS Photometric Quality Flags
 AFM2007_SOURCE_NUMBER 
Albacete Colombo et al. (2007 Cat. ) Catalog Number
 SPECT_TYPE 
Literature MK Spectral Type
 REF_SPECT_TYPE 
Reference for MK Spectral Type
 OPT_NAME 
Optical Source Designation
 CLASS 
Browse Object Classification

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