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J/MNRAS/458/4512  Nearby Seyfert galaxies FIR emissions (Garcia-Gonzalez+, 2016)

The nuclear and integrated far-infrared emission of nearby Seyfert galaxies. Garcia-Gonzalez J., Alonso-Herrero A., Hernan-Caballero A., Pereira-Santaella M., Ramos-Almeida C., Acosta-Pulido J.A., Diaz-Santos T., Esquej P., Gonzalez-Martin O., Ichikawa K., Lopez-Rodriguez E., Povic M., Roche P.F., Sanchez-Portal M. <Mon. Not. R. Astron. Soc., 458, 4512-4529 (2016)> =2016MNRAS.458.4512G (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, Seyfert ; Photometry, infrared ; Photometry, millimetric/submm Keywords: galaxies: active - infrared: galaxies Abstract: We present far-infrared (FIR) 70-500µm imaging observations obtained with Herschel/Photodetector Array Camera (PACS) and Spectral and Photometric Imaging REceiver (SPIRE) of 33 nearby (median distance of 30Mpc) Seyfert galaxies from the Revised Shapley-Ames (RSA) catalogue. We obtain the FIR nuclear (r=1kpc and r=2kpc) and integrated spectral energy distributions (SEDs). We estimate the unresolved nuclear emission at 70µm and we fit the nuclear and integrated FIR SEDs with a grey body model. We find that the integrated FIR emission of the RSA Seyferts in our sample is dominated by emission from the host galaxy, with dust properties similar to those of normal galaxies (non-AGN). We use four criteria to select galaxies whose nuclear 70µm emission has a significant AGN contribution: (1) elevated 70/160µm flux ratios, (2) spatially resolved, high dust temperature gradient, (3) 70µm excess emission with respect to the fit of the FIR SEDs with a grey body, and (4) excess of nuclear SFR obtained from 70µm over SFR from mid-infrared indicators. 16 galaxies (48 per cent of the initial sample) satisfy at least one of these conditions, whereas 10 satisfy half or more. After careful examination of these, we select six bona fide candidates (18 per cent of the initial sample) and estimate that ∼40-70 per cent of their nuclear (r=1-2kpc) 70µm emission is contributed by dust heated by the AGN. Description: We selected a sample of 33 nearby (distances DL<70Mpc, Table 1) Seyfert galaxies from the RSA catalogue (Sandage & Tammann 1987, Cat. VII/51) with Herschel/PACS imaging observations in at least two bands and SPIRE imaging observations from our own programmes and from the archive (see Table 3). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 94 33 Galaxy sample table3.dat 62 155 Herschel/PACS and SPIRE observing programmes table5.dat 90 33 Aperture photometry for r=1kpc table6.dat 90 33 Aperture photometry for r=2kpc table7.dat 90 33 Integrated photometry table10.dat 84 33 Results from grey body fits
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Seq Sequential number 4- 15 A12 --- Name Galaxy name 17- 21 F5.2 Mpc DL Luminosity distance 23- 28 F6.3 mag BTmag BT magnitude from Maiolino & Rieke (1995ApJ...454...95M) 30- 44 A15 --- MType Morphological type (1) 46- 51 A6 --- AType Activity type 53 A1 --- l_EW6.2 Limit flag on EW6.2 54- 58 F5.3 um EW6.2 ? Equivalent width of 6.2um PAH 60- 64 F5.3 um e_EW6.2 ? rms uncertainty on EW6.2 66- 70 F5.3 um EW11.3 ? Equivalent width of 11.3um PAH 72- 76 F5.3 um e_EW11.3 ? rms uncertainty on EW11.3 78- 81 F4.1 [10-7W] logLbol ? AGN bolometric luminosity from Diamond-Stanic & Rieke (2012ApJ...746..168) 82 A1 --- r_logLbol [dn] Reference for logLbol (2) 84- 87 F4.2 Msun/yr SFR1 ? Star formation rate at r=1kpc 89- 92 F4.2 Msun/yr SFR2 ? Star formation rate at r=2kpc 94 A1 --- r_AType Reference for Activity type (2)
Note (1): NED Homogenized from de Vaucouleurs et al. (1991, Cat. VII/155). Note (2): Reference as follows: d = Esquej et al. (2014ApJ...780...86E) e = Veron-Cetty & Veron (2006A&A...455..773V, Cat. VII/248) f = Kewley et al. (2001, Cat. J/ApJS/132/37) g = Contini, Considere & Davoust (1998, Cat. J/A+AS/130/285) h = Osterbrock & Martel (1993ApJ...414..552O) i = Reunanen, Kotilainen & Prieto (2002) j = Brightman & Nandra (2011. Cat. J/MNRAS/413/1206) k = Bradt et al. (1978ApJ...226L.111B) l = Phillips, Charles & Baldwin (1983ApJ...266..485P) m = Trippe et al. (2010ApJ...725.1749T) n = Mason et al. (2012, Cat. J/AJ/144/11) o = Malizia et al. (2012, Cat. J/MNRAS/426/1750)
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 12 A12 --- Name Galaxy name 14- 23 I10 --- ObsID Observation ID 24 A1 --- n_ObsID [*] Note on ObsID (1) 26- 30 A5 --- Inst Instrument 32- 44 A13 --- Wave Wavelengths (um) 46- 62 A17 --- PI PI
Note (1): * indicates that this observation is used for the mosaic of 160um but not for the 100um.
Byte-by-byte Description of file: table5.dat table6.dat table7.dat
Bytes Format Units Label Explanations
1- 12 A12 --- Name Galaxy name 13- 18 F6.2 arcsec Rad Radius 20- 25 F6.2 Jy F70um ? Flux at 70um 27- 31 F5.2 Jy e_F70um ? rms uncertainty on F70um 32- 37 F6.2 Jy F100um ? Flux at 100um 39- 43 F5.2 Jy e_F100um ? rms uncertainty on F100um 46- 50 F5.1 Jy F160um ? Flux at 160um 52- 55 F4.1 Jy e_F160um ? rms uncertainty on F160um 57- 62 F6.2 Jy F250um ? Flux at 250um 64- 68 F5.2 Jy e_F250um ? rms uncertainty on F250um 70- 74 F5.2 Jy F350um ? Flux at 350um 76- 79 F4.2 Jy e_F350um ? rms uncertainty on F350um 81- 85 F5.2 Jy F500um ? Flux at 500um 87- 90 F4.2 Jy e_F500um ? rms uncertainty on F500um
Byte-by-byte Description of file: table10.dat
Bytes Format Units Label Explanations
1- 12 A12 --- Name Galaxy name 14- 15 I2 K T1 ?=- Temperature for emission at 1kpc 17 I1 K e_T1 ? rms uncertainty on T1 19- 21 F3.1 --- beta1 ?=- beta index for emission at 1kpc 23- 25 F3.1 --- e_beta1 ? rms uncertainty on beta1 27- 30 F4.2 --- chi21 ?=- chi2 value for emission at 1kpc 32- 33 I2 K T2 ?=- Temperature for emission at 2kpc 35 I1 K e_T2 ? rms uncertainty on T2 37- 39 F3.1 --- beta2 ?=- beta index for emission at 2kpc 41- 43 F3.1 --- e_beta2 ? rms uncertainty on beta2 45- 48 F4.2 --- chi22 ?=- chi2 value for emission at 2kpc 50- 51 I2 K T ?=- Temperature for integrated emission 53 I1 K e_T ? rms uncertainty on T 55- 57 F3.1 --- beta ?=- beta index for integrated emission 59- 61 F3.1 --- e_beta ? rms uncertainty on beta 63- 66 F4.2 --- chi2 ?=- chi2 value for integrated emission 68- 71 F4.1 K Tb2 Temperature for integrated emission with beta=2 73- 75 F3.1 K e_Tb2 rms uncertainty on Tb2 77- 80 F4.2 --- chi2b2 chi2 value for integrated emission with beta=2 82- 84 I3 % E70um 70um excess
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 06-Jun-2017
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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