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 Database: NGC4278CXO
   NGC 4278 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:
Filter Search  
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Parameter
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Definition
 
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<- Sort by distance from search centre (default)
 SOURCE_FLAG 
Flag [gl] Indicates Quality of Source: g=S/N > 3 in at least one obs; l=S/N < 3
 SOURCE_NUMBER 
Sequential Identification Number for Each Source in Catalog
 ALT_NAME 
Alternative Catalog-Based (BFK2009) Source Designation
 NAME 
IAU-Style Source Designation (CXOU JHHMMSS.s+DDMMSS)
 RA 
Right Ascension
 DECL 
Declination
 LII 
Galactic Longitude
 BII 
Galactic Latitude
 EXTRACTION_RADIUS 
Source Extraction Radius (arcsec)
 ERROR_RADIUS 
Position Uncertainty (arcsec)
 SNR 
Signal-to-Noise Ratio
 LONGTERM_VAR_FLAG 
Flag Indicates Long-Term Variability
 SHORTTERM_BB_FLAG 
Flag Indicates Short-Term Variability According to Bayesian Block Analysis
 SHORTTERM_KS_FLAG 
Flag Indicates Short-Term Variability According to Komogorov-Smirnov Test
 OPTICAL_CORR_FLAG 
Flag Indicates Optical Association
 CENTER_OFFSET 
Distance from Galaxy Center (arcsec)
 D25_FLAG 
Flag [b] Indicates Distance from Galaxy Center Is within the D_25 Ellipse
 XRAY_DETECT_FLAG 
Flag Indicates X-Ray Detection Information
 FB_COUNTS_LIMIT 
Limit Flag for Net Broad Band (0.3-8 keV) Counts
 FB_COUNTS 
Net Broad Band (0.3-8 keV) Counts
 FB_COUNTS_ERROR 
Uncertainty for Net Broad Band (0.3-8 keV) Counts
 SB1_COUNTS 
Net Soft 1 Band (0.3-0.9 keV) Counts
 SB1_COUNTS_ERROR 
Uncertainty for Net Soft 1 Band (0.3-0.9 keV) Counts
 SB2_COUNTS 
Net Soft 2 Band (0.9-2.5 keV) Counts
 SB2_COUNTS_ERROR 
Uncertainty for Net Soft 2 Band (0.9-2.5 keV) Counts
 SB12_COUNTS 
Net Soft Band (0.3-2.5 keV) Counts
 SB12_COUNTS_ERROR 
Uncertainty for Net Soft Band (0.3-2.5 keV) Counts
 HB1_COUNTS 
Net Hard Band (2.5-8 keV) Counts
 HB1_COUNTS_ERROR 
Uncertainty for Net Hard Band (2.5-8 keV) Counts
 SB_COUNTS 
Net Conventional Soft Band (0.5-2 keV) Counts
 SB_COUNTS_ERROR 
Uncertainty for Net Conventional Soft Band (0.5-2 keV) Counts
 HB_COUNTS 
Net Conventional Hard Band (2-8 keV) Counts
 HB_COUNTS_ERROR 
Uncertainty for Net Conventional Hard Band (2-8 keV) Counts
 HARDNESS_RATIO 
Hardness Ratio
 HARDNESS_RATIO_NEG_ERR 
Lower Uncertainty for Hardness Ratio
 HARDNESS_RATIO_POS_ERR 
Upper Uncertainty for Hardness Ratio
 C21_COLOR 
The C21 X-Ray Color
 C21_COLOR_NEG_ERR 
Lower Uncertainty for C21 X-Ray Color
 C21_COLOR_POS_ERR 
Upper Uncertainty for C21 X-Ray Color
 C32_COLOR 
The C32 X-ray Color
 C32_COLOR_NEG_ERR 
Lower Uncertainty for C32 X-Ray Color
 C32_COLOR_POS_ERR 
Upper Uncertainty for C32 X-Ray Color
 LOG_LX_LIMIT 
Limit Flag for Log_Lx
 LOG_LX 
Logarithm of 0.3-8.0keV Luminosity
 LOG_LX_SINGLE 
The 3-Sigma Upper Limit Value of Log_Lx

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