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 Database: M17CXO
   M 17 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 Sorted by RA
 ALT_NAME 
Alternative Source Designation
 NAME 
IAUC Source Designation
 RA 
Right Ascension
 DECL 
Declination
 LII 
Galactic Longitude
 BII 
Galactic Latitude
 ERROR_RADIUS 
Position Error (arcsec)
 OFF_AXIS 
Off-Axis Angle (arcmin)
 COUNTS 
Net Extracted Total (0.5-8keV) Band Counts
 COUNTS_ERROR 
Averaged Upper and Lower 1-Sigma Error in Total Band Counts
 BCK_COUNTS 
Background Extracted Total (0.5-8keV) Band Counts
 HB_COUNTS 
Net Extracted Hard (2-8keV) Band Counts
 PSF_FRACTION 
PSF Fraction Enclosed within the Extraction Region
 SIGNIFICANCE 
Photometric Significance
 LOG_BCK_PROB_LIMIT 
Limit Flag for logP
 LOG_BCK_PROB 
Log of Probability That Total Band Extracted Counts Are Solely from Background
 SOURCE_ANOMALY_FLAG 
Flag Indicates Source Anomalies
 SOURCE_VARIABLE_FLAG 
Flag Indicates Total (2-8keV) Band Variability Characterization
 EXPOSURE 
Effective Exposure (s)
 MEDIAN_ENERGY 
Background-Corrected Total (0.5-8keV) Band Median Photon Energy (keV)
 LOG_NH_NEG_ERR 
Lower 90% Confidence Level in Log_NH
 LOG_NH 
Log of Best Fit H I Column Density
 LOG_NH_POS_ERR 
Upper 90% Confidence Level in Log_NH
 LOG_NH_FLAG 
Flag [e] Indicates Model Parameter Frozen in the NH Fit
 APEC_KT_NEG_ERR 
Lower 90% Confidence Level in kT (keV)
 APEC_KT 
Best Fit Plasma Temperature (keV)
 APEC_KT_POS_ERR 
Upper 90% Confidence Level in kT (keV)
 APEC_KT_FLAG 
Flag [e] Indicates Model Parameter Frozen in the Plasma Temperature Fit
 LOG_EM_NEG_ERR 
Lower 90% Confidence Level in Log_EM
 LOG_EM 
Log of Model Emission Measure (in cm^-3)
 LOG_EM_POS_ERR 
Upper 90% Confidence Level in Log_EM
 LOG_SB_LX_OBS 
Log of Soft Band (0.5-2keV) Luminosity (in erg/s)
 LOG_HB_LX_OBS 
Log of Hard Band (2-8keV) Luminosity (in erg/s)
 LOG_HB_LX 
Log of Absorption-Corrected Hard Band (2-8keV) Luminosity (in erg/s)
 LOG_LX_OBS 
Log of Total Band (0.5-8keV) Luminosity (in erg/s)
 LOG_LX 
Log of Absorption-Corrected Total Band (0.5-8keV) Luminosity (in erg/s)
 SPECTRAL_FLAG 
Flag [2T] Indicates Two-Temperature Model Used (2nd Temperature in Parentheses)
 SPECTRAL_INDEX_NEG_ERR 
Lower 90% Confidence Level in Gamma
 SPECTRAL_INDEX 
Best Fit Power Law Photon Index
 SPECTRAL_INDEX_POS_ERR 
Upper 90% Confidence Level in Gamma
 LOG_PL_NORM_NEG_ERR 
Lower 90% Confidence Level in Log_Pl_Norm
 LOG_PL_NORM 
Log of Model Spectrum Power Law Normalization
 LOG_PL_NORM_POS_ERR 
Upper 90% Confidence Level in Log_Pl_Norm
 CEN_NUMBER 
Chini Elsaesser & Neckel (1980) Identification
 SPECT_TYPE 
Spectral Type
 SPECT_TYPE_FLAG 
Flag [H] Indicates Spectral Type from Hanson Howarth & Conti (1997)
 HHC_NUMBER 
Hanson Howarth & Conti (1997) Identification
 TWOMASS_NAME 
2MASS Source Designation
 TWOMASS_FLAGS 
Flag Indicates 2MASS Source Contamination and Confusion
 SIRIUS_NUMBER 
SIRIUS Catalog Running Sequence Number
 SIRIUS_NUMBER_FLAG 
Flag [a] Indicates Source Outside the SIRIUS Field of View
 GLIMPSE_NAME 
GLIMPSE Source Designation
 IR_MATCH_FLAGS 
Flags Indicates 2MASS/SIRIUS/GLIMPSE Source Match Ambiguity
 REF_IR_MATCH 
Code Indicates Additional Notes in Documentation
 JMAG_LIMIT 
Limit Flag for Jmag
 JMAG 
The J Band Magnitude
 JMAG_FLAG 
Flag Indicates Photometry Error Exceeds 0.1 mag in Jmag
 HMAG_LIMIT 
Limit Flag for Hmag
 HMAG 
The H Band Magnitude
 HMAG_FLAG 
Flag Indicates Photometry Error Exceeds 0.1 mag in Hmag
 KMAG_LIMIT 
Limit Flag for Kmag
 KMAG 
The K Band Magnitude
 KMAG_FLAG 
Photometry Error Exceeds 0.1 mag in Kmag
 IRAC_3P6_UM_MAG 
GLIMPSE 3.6-micron Band Magnitude
 IRAC_4P5_UM_MAG 
GLIMPSE 4.5-micron Band Magnitude
 IRAC_5P8_UM_MAG 
GLIMPSE 5.8-micron Band Magnitude
 IRAC_8P0_UM_MAG 
GLIMPSE 8.0-micron Band Magnitude
 SOURCE_FLAG 
Flag [P T] Indicates Primary or Tentative Source

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