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J/MNRAS/413/1206     XMM survey of 12um selected galaxies  (Brightman+, 2011)

An XMM-Newton spectral survey of 12µm selected galaxies. I. X-ray data. Brightman M., Nandra K. <Mon. Not. R. Astron. Soc., 413, 1206-1235 (2011)> =2011MNRAS.413.1206B
ADC_Keywords: X-ray sources ; Galaxies, IR ; Spectroscopy Keywords: line: formation - radiative transfer - galaxies: active - X-rays: galaxies Abstract: We present an X-ray spectral analysis of 126 galaxies of the 12um galaxy sample (Rush et al. 1993, Cat. VII/157). By studying this sample at X-ray wavelengths, we aim to determine the intrinsic power, continuum shape and obscuration level in these sources. We improve upon previous works by the use of superior data in the form of higher signal-to-noise ratio spectra, finer spectral resolution and a broader bandpass from XMM-Newton. We pay particular attention to Compton thick active galactic nucleus (AGN) with the help of new spectral fitting models that we have produced, which are based on Monte Carlo simulations of X-ray radiative transfer, using both a spherical and torus geometry, and taking into account Compton scattering and iron fluorescence. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 112 126 Observational data for the 126 XMM-Newton observations used here table3.dat 168 126 *Parameters of the basic model consisting of the primary power law and the thermal plasma component, where present table4.dat 90 44 Parameters of the second power-law component, if it is present table5.dat 123 15 Parameters of the soft excess component, if it is present table6.dat 81 44 Parameters of the reflection component, if it is present table7.dat 56 39 X-ray spectral fitting data. Parameters of the warm absorber, if it is present table8.dat 91 71 Parameters of the Fe-Kα line, be it narrow or broad, if it is present table9.dat 72 16 Details of the Compton thick sources found in this sample
Note on table3.dat: More complex model parameters are presented in tables 4-8.
See also: VII/157 : The Extended 12um galaxy sample (Rush+ 1993) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 23 A23 --- Name Galaxy name as given by NED 25- 39 A15 --- ONames Galaxy name(s) as given by RMS 41- 47 F7.3 deg RAdeg RMS right ascension in decimal degrees (J2000) 49- 55 F7.3 deg DEdeg RMS declination in decimal degrees (J2000) 57- 63 F7.4 --- z Redshift as reported in NED 64 A1 --- n_z [a] negative z (1) 66- 74 I9 --- ObsID XMM-Newton observation identifier 76- 79 I4 --- Rev XMM-Newton revolution number 81- 90 A10 "YYYY-MM-DD" Date Date of XMM-Newton observation 92- 96 F5.1 ks Dur Duration of the XMM-Newton observation before background screening 98-101 F4.1 ks Texp Exposure time after screening and dead-time correction 103-105 A3 --- Mode XMM-Newton readout mode (2) 107-112 A6 --- Filt Optical filter in place during XMM-Newton observation
Note (1): a: Messier 81, NGC 4214 and Messier 90 have reported negative redshifts, indicating that they have peculiar velocities in our direction. We use the luminosity distance reported in NED when calculating the luminosities for these objects (0.662, 7.54 and 1.22Mpc, respectively). Note (2): XMM-Newton readout mode code as follows: FW = full window FWe = full window extended LW = large window SW = small window
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 23 A23 --- Name Galaxy name 24- 30 F7.2 --- chi2 chi2 value of the fit 31 A1 --- --- [/] 32- 34 I3 --- dof Degree of freedom value of the fit 35- 37 A3 --- n_dof Note on dof (1) 39- 42 F4.1 10+20cm-2 NHg Galactic column density 44 A1 --- l_NH Limit flag on NH 45- 52 F8.4 10+22cm-2 NH ? Neutral column density measured in the primary power law 54- 62 F9.4 10+22cm-2 E_NH ? Error on NH (upper value) 64- 71 F8.4 10+22cm-2 e_NH ? Error on NH (lower value) 72 A1 --- n_NH [*] * indicates that an ionized absorber has been detected in this spectral fit, details of which are in Table 7 74- 77 F4.2 --- Gam1 Power-law index of the primary power law Γ1 78 A1 --- n_Gam1 [f] f indicates that this parameter was fixed in the fit 79- 82 F4.2 --- E_Gam1 ? Error on Gamma1 (upper value) 84- 87 F4.2 --- e_Gam1 ? Error on Gam1 (lower value) 88- 96 F9.3 10-5/cm2/s/keV Apl ? Normalization of the primary power law (x10-5ph/cm2/s/keV at 1keV) 98-106 F9.3 10-5/cm2/s/keV E_Apl ? Error on Apl (upper value) 108-115 F8.3 10-5/cm2/s/keV e_Apl ? Error on Apl (lower value) 117-122 F6.3 keV kT ? Temperature of the thermal plasma component 124-128 F5.3 keV E_kT ? Error on kT (upper value) 130-134 F5.3 keV e_kT ? Error on kT (lower value) 136-144 F9.5 --- R ? Ratio of the normalization of the thermal plasma component to the normalization of the primary power law 145-151 F7.4 --- E_R ? Error on R (upper value) 153-158 F6.4 --- e_R ? Error on R (upper value) 160-163 I4 10-17W/m2 FHX Observed flux in the 2-10keV band 164 A1 --- --- [/] 165-168 F4.1 [10-7W] logLHX logarithm of the intrinsic luminosity in 2-10keV (hard) band
Note (1): Notes as follows: (F) = full band spectral fit method was used (D) = although the χ2r of this fit is bad (χ2r>2), the data/model ratio never exceeded 5 per cent, which is the level of uncertainties in the XMM-Newton calibration (H) = only the 2.5-10keV fit parameters have been presented here due to spectral complexities below 2keV. For the 2.5-10keV fits, only NGC 1068, NGC 1365 and M82 have bad fits. These sources have notoriously complex spectra, which are high signal-to-noise ratio in this case, with several emission and absorption features. We do not attempt to fit these additional complexities, however, and present only the basic hard band parameters for these fits. No errors are quoted because the standard formalism does not apply unless the model fits the data (Lampton et al. 1976ApJ...208..177L).
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 23 A23 --- Name Galaxy name 25- 32 F8.5 10+22cm02 NH.2 ? Neutral column density measured in the secondary power law 34- 40 F7.5 10+22cm02 E_NH.2 ? Error on NH.2 (upper limit) 41- 47 F7.5 10+22cm02 e_NH.2 ? Error on NH.2 (lower limit) 48- 52 F5.2 --- Gam2 ? Power-law index of the secondary power law Γ2 54- 57 F4.2 --- E_Gam2 ? Error on Gam2 (upper limit) 59- 62 F4.2 --- e_Gam2 ? Error on Gam2 (lower limit) 63 A1 --- n_Gam2 [G] G when Gam2=Gam1 65- 71 F7.5 --- Fpl Ratio of the normalization of the second power law to the primary power law 73- 82 F10.5 --- E_Fpl ? Error on Fpl (upper value) 84- 90 F7.5 --- e_Fpl ? Error on Fpl (lower value)
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 23 A23 --- Name Galaxy name 25- 28 F4.2 --- R Ratio of the data at 0.4keV to the extrapolated 2.5-10keV power law 29 A1 --- n_R [a] Note on R (1) 32- 37 A6 --- Model Model used (bbody or compTT) 40- 46 F7.5 keV T0 ? The input soft photon (Wien) temperature (compTT model only) 48- 53 F6.4 keV E_T0 ? Error on T0 (upper value) 55- 61 F7.5 keV e_T0 ? Error on T0 (lower value) 63- 67 F5.2 keV kT Temperature 68- 72 F5.2 keV E_kT ? Error on kT (upper value) 73- 77 F5.2 keV e_kT ? Error on kT (lower value) 79- 84 F6.4 --- taup ? Plasma optical depth (compTT model only) 86- 90 F5.3 --- E_taup ? Error on taup (upper value) 92- 95 F4.2 --- e_taup ? Error on taup (lower value) 97-104 F8.4 --- FSX Ratio of the normalization of this component to the normalization of the primary power law 106-113 F8.4 --- E_FSX ? Error on FSX (upper value) 116-123 F8.4 --- e_FSX ? Error on FSX (lower value)
Note (1): a: 3C 120 has a soft excess which does not fit our criteria, as it does not have a data/model ratio greater than 20 per cent at 0.4keV. However, this source has a clear soft excess at 0.7keV not well modelled by thermal plasma emission. We find that a ratio of 3.2 at 0.4keV is recovered when an additional intrinsic absorption component is used.
Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
1- 23 A23 --- Name Galaxy name 25- 28 F4.2 --- Gam2 ? Power-law index of the reflection component 30- 33 F4.2 --- E_Gam2 ? Error on Gam2 (upper value) 35- 38 F4.2 --- e_Gam2 ? Error on Gam2 (lower value) 39 A1 --- n_Gam2 [G] G when Gam2=Gam1 40 A1 --- f_Gam2 [f] f when parameter has been fixed at this value 42- 48 F7.3 --- Rpex Ratio of the normalization of the PEXMON component to the normalization of the primary power law 50- 56 F7.3 --- E_Rpex ? Error on Rpex (upper value) 58- 64 F7.3 --- e_Rpex ? Error on Rpex (lower value) 66- 71 F6.1 --- Rtor ? Ratio of the normalization of the TORUS component to the normalization of the primary power law (only when Rpex>1) 73- 76 F4.1 [10-7W] logLHXpex ? Intrinsic 2-10keV luminosity as determined from the PEXMON component 78- 81 F4.1 [10-7W] logLHXtor ? Intrinsic 2-10keV luminosity as determined from the TORUS component
Byte-by-byte Description of file: table7.dat
Bytes Format Units Label Explanations
1- 23 A23 --- Name Galaxy name 25- 28 F4.1 [cm-2] logNH logarithm of the ionized column density 30- 32 F3.1 [cm-2] E_logNH ? Error on logNH (upper value) 34- 36 F3.1 [cm-2] e_logNH ? Error on logNH (lower value) 38- 43 F6.3 [-] logxi logarithm of the ionization parameter, ξ 46- 50 F5.3 [-] E_logxi ? Error on logxi (upper value) 52- 56 F5.3 [-] e_logxi ? Error on logxi (lower value)
Byte-by-byte Description of file: table8.dat
Bytes Format Units Label Explanations
1- 23 A23 --- Name Galaxy name 25- 31 F7.2 eV EW6.4 ? Equivalent width of the narrow line at 6.4keV modelled by either TRANS or PEXMON 33- 39 F7.2 eV E_EW6.4 ? Error on EW6.4 (upper value) 41- 47 F7.2 eV e_EW6.4 ? Error on EW6.4 (lower value) 50- 53 F4.2 keV EFeKa ? Energy of the line constrained to be between 6.2 and 6.6keV, not associated with any other component 55- 58 F4.2 keV E_EFeKa ? Error on EFeKa (upper value) 60- 63 F4.2 keV e_EFeKa ? Error on EFeKa (lower value) 65 A1 --- l_sigFeKa Limit flag on sigmaFeKa 66- 69 F4.2 --- sigFeKa ? Gaussian width of this component 71- 74 F4.2 --- E_sigFeKa ? Error on sigFeKa (upper value) 76- 79 F4.2 --- e_sigFeKa ? Error on sigFeKa (lower value) 81- 83 I3 eV EWFeKa ? Equivalent width of FeKα 85- 87 I3 eV E_EWFeKa ? Error on EWFeKa (upper value) 89- 91 I3 eV e_EWFeKa ? Error on EWFeKa (lower value)
Byte-by-byte Description of file: table9.dat
Bytes Format Units Label Explanations
1- 23 A23 --- Name Galaxy name 25- 28 F4.1 cm-2 NH ? Directly measured hydrogen column density 30- 32 F3.1 cm-2 E_NH ? Error on NH (upper value) 34- 36 F3.1 cm-2 e_NH ? Error on NH (lower value) 38- 41 I4 eV EWFeKa ? Equivalent width of the Fe Kα line 43- 46 I4 eV E_EWFeKa ? Error on EWFeKa (upper value) 48- 51 I4 eV e_EWFeKa ? Error on EWFeKa (lower value) 53- 58 F6.2 --- R ? Reflection fraction determined from the PEXMON model 60- 65 F6.2 --- E_R ? Error on R (upper value) 67- 72 F6.2 --- e_R ? Error on R (lower value)
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 12-Dec-2011
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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