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V/138  A catalogue of cross-matched radio/infrared/X-ray sources  (Combi+, 2011)

A systematic cross-search for radio/infrared counterparts of XMM- Newton sources Combi J.A., Albacete-Colombo J.F., Pellizza L., Lopez-Santiago J., Romero G.E., Marti J., Munoz-Arjonilla A.J., Sanchez-Ayaso E., Luque-Escamilla P.L., Sanchez-Sutil J.R. <Astrophis. and Space Science, 331, 53 (2011)> =2011Ap&SS.331...53C
ADC_Keywords: X-ray sources ; Radio sources ; Infrared sources ; Cross identifications Keywords: Catalogs, Methods: statistical ; X-rays: general ; Radio continuum: general ; Infrared: general ; Surveys Abstract: We present a catalog of cross-correlated radio, infrared and X-ray sources using a very restrictive selection criteria with an IDL-based code developed by us. The significance of the observed coincidences was evaluated through Monte Carlo simulations of synthetic sources following a well-tested protocol. We found 3320 coincident radio/X-ray sources with a high statistical significance characterized by the sum of error-weighted coordinate differences. For 997 of them, 2MASS counterparts were found. The percentage of chance coincidences is less than 1%. X-ray hardness ratios of well-known populations of objects were used to provide a crude representation of their X-ray spectrum and to make a preliminary diagnosis of the possible nature of unidentified X-ray sources. The results support the fact that the X-ray sky is largely dominated by Active Galactic Nuclei at high galactic latitudes (|b|≥10deg). At low galactic latitudes (|b|≤10deg) most of unidentified X-ray sources (∼94%) lie at |b|≥2deg. This result suggests that most of the unidentified sources found toward the Milky Way plane are galactic objects. Well-known and unidentified sources were classified in different tables with their corresponding radio/infrared and X-ray properties. These tables are intended as a useful tool for researchers interested in particular identifications. Description: This is a complete version of the tables created for the manuscript, that are not available at the journal website. These tables contain radio, infrared and X-ray data for the 3320 sources in common in the 2XMM catalog and one of the following radio catalogs: NVSS, SUMSS, and MGPS. A flag with the object types is included in this new version. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tab_nvss.dat 222 2174 X-ray and radio parameters of XMM-Newton source cross-matched with NVSS radio sources tab_mgps.dat 222 106 X-ray and radio parameters of XMM-Newton source cross-matched with MGPS2 radio sources tab_sums.dat 222 344 X-ray and radio parameters of XMM-Newton source cross-matched with SUMSS radio sources tab_refs.dat 92 515 Reference records in tables tab_nvss.dat, tab_mgps.dat and tab_sums.dat
Byte-by-byte Description of file: tab_nvss.dat tab_mgps.dat tab_sums.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Src Source identification number 7- 21 A15 --- 2XMM 2XMM designation 24- 25 I2 h RAh Right Ascension J2000 (hours) 27- 28 I2 min RAm Right Ascension J2000 (minutes) 30- 34 F5.2 s RAs Right Ascension J2000 (seconds) 37 A1 --- DE- Declination J2000 (sign) 38- 39 I2 deg DEd Declination J2000 (degrees) 41- 42 I2 arcmin DEm Declination J2000 (minutes) 44- 48 F5.2 arcsec DEs Declination J2000 (seconds) 51- 55 F5.2 arcsec err Position error 58- 62 F5.2 --- HR1 ? Hardness ratio between medium and soft energy bands 64- 67 F4.2 --- e_HR1 ? Error in HR1 70- 74 F5.2 --- HR2 ? Hardness ratio between medium and hard energy bands 76- 79 F4.2 --- e_HR2 ? Error in HR2 82- 84 F3.1 10+22/cm2 NH ? Column density determined from the fitting of HR1 and HR2 to hot plasma models 87- 89 F3.1 keV kT ? Temperature of the hot plasma model 92- 94 F3.1 10+22/cm2 NH2 ? Column density determined from the fitting of HR1 and HR2 to absorbed power-laws 97- 99 F3.1 --- Gamma ? Index of the power-law model Γ 102-108 F7.2 mW/m2 Fx X-ray flux in the 2XMM catalogue (erg/cm2/s) 110-115 F6.2 mW/m2 e_Fx Error in Fx 118-130 A13 --- Radio Radio designation (NVSS, MGPS or SUMSS) 133-139 F7.1 mJy FT Flux in the radio catalogue 141-146 F6.1 mJy e_FT Flux error in the radio catalogue 149-153 F5.2 --- Rxr R statistics of the 2XMM/radio correlation 156-168 A13 --- 2MASS 2MASS designation 171-175 F5.2 mag Ks ? 2MASS Ks magnitude 178-182 F5.2 mag H-K ? 2MASS H-Ks color 185-189 F5.2 mag J-H ? 2MASS J-H color 192-196 F5.2 --- Rxi ? R statistics of the 2XMM/2MASS correlation 199-203 F5.3 --- z ? Redshift for extragalactic sources 206-212 A7 --- Bib Bibliographic code 215-222 A8 --- Otype Identification flag in SIMBAD (1)
Note (1): The identification flag (object type) is abbreviated as follows: U = Unidentified source U-rad = Unidentified source with previous radio detection S = Star P = Pulsar SN-SNR = Supernova or Supernova remnant LHMXB = Low/High mass X-ray binary YSO = Young stellar object OC = Young open cluster M = Maser GRS = Gamma ray source SFR = Star forming region PN = Planetary nebula GC = Galactic center SeyferI = Seyfert I galaxy SeyferII = Seyfert II galaxy Liner = Liner galaxy Radio = Radiogalaxy Double = Double galaxy
Byte-by-byte Description of file: tab_refs.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Bib Bibcode in tables tab_nvss.dat, tab_mgps.dat and tab_sums.dat 6- 24 A19 --- BibCode ADS/Simbad/NED bibliographic code 27- 92 A66 --- Ref Bibliographic reference x
History: * 04-Nov-2012: on-line version * 12-Mar-2013: Label NVSS corrected into Radio
(End) Javier Lopez-Santiago [UCM] 09-May-2012
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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