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J/A+A/545/A66 X-ray and radio emission of type 1 AGNs (Ballo+, 2012)
Exploring X-ray and radio emission of type 1 AGN up to z∼2.3. Ballo L., Heras F.J.H., Barcons X., Carrera F.J. <Astron. Astrophys. 545, A66 (2012)> =2012A&A...545A..66B
ADC_Keywords: Active gal. nuclei ; QSOs ; X-ray sources ; Radio sources Keywords: galaxies: active - X-rays: galaxies - quasars: general - quasars: emission lines - radio continuum: galaxies Abstract: X-ray emission from Active Galactic Nuclei (AGN) is dominated by the accretion disk around a supermassive black hole. The radio luminosity, however, has not such a clear origin except in the most powerful sources where jets are evident. The origin (and even the very existence) of the local bi-modal distribution in radio-loudness is also a debated issue. By analysing X-ray, optical and radio properties of a large sample of type 1 AGN and quasars (QSOs) up to z>2, where the bulk of this population resides, we aim to explore the interplay between radio and X-ray emission in AGN, in order to further our knowledge on the origin of radio emission, and its relation to accretion. We analyse a large (∼800 sources) sample of type 1 AGN and QSOs selected from the 2XMMi XMM-Newton X-ray source catalogue, cross-correlated with the SDSS DR7 spectroscopic catalogue, covering a redshift range from z∼0.3 to z∼2.3. Supermassive black hole masses are estimated from the Mg II emission line, bolometric luminosities from the X-ray data, and radio emission or upper limits from the FIRST catalogue. Most of the sources accrete close to the Eddington limit and the distribution in radio-loudness does not appear to have a bi-modal behaviour. We confirm that radio-loud AGN are also X-ray loud, with an X-ray-to-optical ratio up to twice that of radio-quiet objects, even excluding the most extreme strongly jetted sources. By analysing complementary radio-selected control samples, we find evidence that these conclusions are not an effect of the X-ray selection, but are likely a property of the dominant QSO population. Our findings are best interpreted in a context where radio emission in AGN, with the exception of a minority of beamed sources, arises from very close to the accretion disk and is therefore heavily linked to X-ray emission. We also speculate that the radio-loud/radio-quiet dichotomy might either be an evolutionary effect that developed well after the QSO peak epoch, or an effect of incompleteness in small samples. Description: Basic information and derived properties are presented for our sample of X-ray selected type 1 AGN (as well as for the X-ray undetected type 1 AGN in the "control sample"): coordinates, redshift, X-ray and radio fluxes, optical magnitudes, from the SDSS, 2XMMi, and FIRST catalogues; continuum luminosities at 3000A and in the X-ray band, black hole masses, bolometric luminosities, Eddington ratios; for the sources falling in the FIRST field, optical fluxes at 2500A and 4400 A, X-ray-to-optical index, radio classification, ratio between radio and UV, optical, or X-ray fluxes. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 194 863 Basic information for the 852 X-ray selected (+11 X-ray undetected) SDSS type 1 AGNs table4.dat 206 863 Derived properties for the 852 X-ray selected (+11 X-ray undetected) SDSS type 1 AGNs table5.dat 255 863 Radio properties for the 852 X-ray selected (+11 X-ray undetected) SDSS type 1 AGNs falling in the FIRST field
See also: IX/41 : XMM-Newton Serendipitous Source Catalogue 2XMMi-DR3 (XMM-SSC, 2010) VIII/71 : The FIRST Survey Catalog, Version 03Apr11 (Becker+ 2003) Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 6 I6 --- XMM ? XMM source ID number, SRCID_XMM (G1) 7- 9 A3 --- f_XMM Arbitrary ID number for X-ray undetected sources, NNX 11- 20 F10.6 deg RAdeg XMM Right ascension (J2000) 22- 31 F10.6 deg DEdeg XMM Declination (J2000) 33 A1 --- l_FX [l] If upper limit in X-ray 35- 43 F9.5 10-17W/m2 FX X-ray flux (0.2-12keV) (10-14erg/cm2/s) 45- 52 F8.5 10-17W/m2 e_FX ? X-ray flux error (0.2-12keV) 54- 61 F8.6 --- z SDSS redshift 63- 70 F8.6 --- e_z SDSS redshift error 72- 89 A18 --- SDSS SDSS source ID number, specObjID_SDSS 91-100 F10.6 deg RA2deg SDSS Right ascension (J2000) 102-111 F10.6 deg DE2deg SDSS Declination (J2000) 113-121 F9.6 mag gmag SDSS g-filter magnitude 123-131 F9.6 mag rmag SDSS r-filter magnitude 133-141 F9.6 mag imag SDSS i-filter magnitude 143-151 F9.6 0.1nm sigMg Standard deviation of MgII line 153-161 F9.6 0.1nm e_sigMg MgII standard deviation error 163-172 F10.6 10-19W/m2/nm FcMg Continuum below the MgII line (10-17erg/cm2/s/Å) 174-184 F11.6 mJy FR ?=- FIRST (Cat. VIII/71) integrated radio flux at 1.5GHz 185 A1 --- n_FR [Ou] Flag when no radio flux value (G2) 187-194 F8.6 mJy e_FR ?=- Error on FR
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 6 I6 --- XMM ? XMM source ID number, SRCID_XMM (G1) 7- 9 A3 --- f_XMM Arbitrary ID number for X-ray undetected sources, NNX 11- 18 F8.6 --- z SDSS redshift 20- 27 F8.6 --- e_z SDSS redshift error 29- 33 F5.2 10+20cm-2 NHgal Galactic column density 35 A1 --- r_W(Mg) [-*] Origin of W(Mg) (2) 37- 48 F12.6 km/s W(Mg) FWHM of the MgII emission line 50- 61 F12.6 km/s e_W(Mg) MgII FWHM error 63 A1 --- r_logL3000 [-*] Origin of logL3000 (3) 65- 73 F9.6 [uW/nm] logL3000 Luminosity at 3000Å rest frame (erg/cm2/Å) 75- 82 F8.6 [uW/nm] e_logL3000 error in the logL3000 84 A1 --- r_logMBH [-*] Origin of logMBH (4) 86- 94 F9.6 [Msun] logMBH Mass of the central black hole 96-103 F8.6 [Msun] e_logMBH error in the log of BH mass 105 A1 --- l_logLx [l] If upper limit in logLx 107-115 F9.6 [10-7W] logLx X-ray luminosity log(L(2-10keV)) 117-124 F8.6 [10-7W] e_logLx ?=- rms uncertainty on logLx 126 A1 --- l_logLx/Edd [l] If upper limit in Lx/Edd 128-136 F9.6 [-] logLx/Edd X-ray/Eddington luminosity ratio =log(LX/LEdd) 138-145 F8.6 [-] e_logLx/Edd ?=- rms uncertainty on logLx/Edd 147 A1 --- l_logKx [l] If upper limit in logKx 149-156 F8.6 [-] logKx X-ray (2-10keV) bolometric correction κ=Lbol/LX 158-165 F8.6 [-] e_logKx ?=- rms uncertainty on logKx 167 A1 --- l_logLbol [l] If upper limit in the logLbol 169-177 F9.6 [10-7W] logLbol Bolometric luminosity log(Lbol) 179-185 F7.5 [10-7W] e_logLbol ?=- rms uncertainty on logLbol 187 A1 --- l_logEdd [l] If upper limit in logEdd 189-197 F9.6 [-] logEdd Eddington ratio logλEdd (λEdd=Lbol/LEdd) 199-206 F8.6 [-] e_logEdd ?=- rms uncertainty on logEdd
Note (2): Flag as follows: * = from the SDSS DR7 catalogue - = from Shen et al. (2011ApJS..194...45S) Note (3): Flag as follows: * = See Sect 3 - = from Shen et al. (2011ApJS..194...45S) Note (4): Flag as follows: * = From eq. (1) - = from Shen et al. (2011ApJS..194...45S)
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 6 I6 --- XMM ? XMM source ID number, SRCID_XMM (G1) 7- 9 A3 --- f_XMM Arbitrary ID number for the 11 undetected X-ray sources (01X to 11X) 11- 18 F8.6 mJy F2500 Flux at 2500Å rest frame 20- 27 F8.6 mJy e_F2500 rms uncertainty on F2500 29 A1 --- l_aox [l-] If upper limit in X-ray 31- 39 F9.6 --- aox X-ray to optical spectral index 41- 48 F8.6 --- e_aox ?=- rms uncertainty on aox 50- 57 F8.6 mJy F4400 ?=- Flux at 4400Å rest frame (1) 59- 66 F8.6 mJy e_F4400 ?=- rms uncertainty on F4400 (1) 68- 78 F11.6 mJy F5GHz ?=- Flux at 5GHz rest frame 79 A1 --- f_F5GHz [Ou] Reason of missing F5GHz (G2) 81- 90 F10.6 mJy e_F5GHz ?=- rms uncertainty on F5GHz 92- 99 F8.6 mJy F5GHzlim ?=- Upper limit to flux at 5GHz 100 A1 --- f_F5GHzlim [O-] Flag on F5GHzlim (2) 102-109 F8.6 mJy e_F5GHzlim ?=- rms uncertainty on F5GHzlim 111-122 F12.6 --- R ?=- Radio to UV radioloudness 123 A1 --- f_R [Ou] Reason of missing R (G2) 125-135 F11.6 --- e_R ?=- Radio-UV radioloudness error 138-148 F11.6 --- Rlim ?=- Upper limit to R 149 A1 --- f_Rlim [O-] Flag on Rlim (2) 151-160 F10.6 --- e_Rlim ?=- rms uncertainty on Rlim 163-166 A4 --- Class ?=- Radio classification (3) 168-179 F12.6 --- R4400 ?=- Radio to optical radioloudness 180 A1 --- f_R4400 [Ou-] Flag on R4400 (4) 182-192 F11.6 --- e_R4400 ?=- Radio-opt. radioloudness error 195-203 F9.6 --- R4400lim ?=- Upper limit to R4400 204 A1 --- f_R4400lim [O-] Flag on R4400lim (5) 206-214 F9.6 --- e_R4400lim ?=- rms uncertainty on R4400lim 217-224 F8.6 --- RX ?=- Radio to X-ray radioloudness 225 A1 --- f_RX [Ou-] Flag on RX (2) 227-234 F8.6 --- e_RX ?=- rms uncertainty on RX 236 A1 --- l_RXlim [u] u if RXlim is a lower limit for radio-detected and X-ray undetected sources 238-245 F8.6 --- RXlim ?=- Upper limit for X-ray detected AGN not detected by FIRST 246 A1 --- f_RXlim [O] Reason of missing RXlim (G2) 248-255 F8.6 --- e_RXlim ?=- rms uncertainty on RXlim
Note (1): no value for source without Hbeta line in their spectra Note (2): When no value, flags as follows: O = source not covered by FIRST - = source detected by FIRST u = source covered but not detected by FIRST Note (3): Radio classification as follows: RL = radioloud dRI = detected radiointermediate ndRI = nondetected with upper limit to R between 1 and 10 RQ = radioquiet NC = nonclassified - = source not covered by FIRST Note (4): When no value, flags as follows: O = source not covered by FIRST u = source covered but not detected by FIRST - = source without Hbeta line in their spectra Note (5): When no value, flags as follows: O = source not covered by FIRST - = source detected by FIRST or without Hbeta line in their spectra
Global notes: Note (G1): Unique source identification number in 2XMMi catalogue (Cat. IX/41). Note (G2): Flag as follows: O = source not covered by FIRST u = source covered but not detected by FIRST
Acknowledgements: Lucia Ballo, lucia.ballo(at)gmail.com, (CSIC-UC, Santander, Spain)
(End) Lucia Ballo [IFCA, Santander, Spain], Patricia Vannier [CDS] 07-Sep-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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