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J/ApJ/709/1257   Spitzer-IRS spectra of Seyfert galaxies. II.  (Tommasin+, 2010)

Spitzer-IRS high-resolution spectroscopy of the 12 µm Seyfert galaxies. II. Results for the complete data set. Tommasin S., Spinoglio L., Malkan M.A., Fazio G. <Astrophys. J., 709, 1257-1283 (2010)> =2010ApJ...709.1257T
ADC_Keywords: Active gal. nuclei ; Galaxies, spectra ; Galaxies, IR ; Surveys Keywords: galaxies: active - galaxies: starburst - infrared: galaxies Abstract: We present our Spitzer-Infrared Spectrometer (IRS) spectroscopic survey from 10um to 37um of the Seyfert galaxies of the 12um Galaxy Sample (12MSG), collected in a high-resolution mode (R∼600). The new spectra of 61 galaxies, together with the data we already published, give us a total of 91 12um Seyfert galaxies observed, out of 112. We discuss the mid-IR emission lines and features of the Seyfert galaxies, using an improved active galactic nucleus (AGN) classification scheme: instead of adopting the usual classes of Seyfert 1's and Seyfert 2's, we use the spectropolarimetric data from the literature to divide the objects into categories "AGN 1" and "AGN 2," where AGN 1's include all broad-line objects, including the Seyfert 2's showing hidden broad lines in polarized light. The remaining category, AGN 2's, contains only Seyferts with no detectable broad lines in either direct or polarized spectroscopy. We present various mid-IR observables, such as ionization-sensitive and density-sensitive line ratios, the polycyclic aromatic hydrocarbon (PAH) 11.25um feature and the H2S(1) rotational line equivalent widths (EWs), the (60-25um) spectral index, and the source extendedness at 19um, to characterize similarities and differences in the AGN populations, in terms of AGN dominance versus star formation dominance. Description: Most of the sample galaxies -the 29 galaxies presented in Paper I (Tommasin et al., 2008ApJ...676..836T) and the 23 galaxies in this paper- have been observed within the Spitzer Guaranteed Time Project 30291 (PI: Fazio). IRS high-resolution observations of another 37 objects, belonging to the 12MSG, were extracted from the Spitzer Science Center (SSC) archive. The journal of the observations of the 61 galaxies presented here is shown in Table 1. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 98 61 Journal of Spitzer IRS observations table2.dat 144 61 Fine structure lines in our sample table3.dat 78 61 Molecular Hydrogen lines and PAH emission feature at 11.25 microns
See also: VII/157 : The Extended 12um galaxy sample (Rush+ 1993) J/MNRAS/414/500 : Spitzer/IRS ATLAS project source (Hernan-Caballero+, 2011) J/ApJS/184/230 : Spitzer high-resolution MIR spectral atlas (Bernard-Salas+, 2009) J/ApJ/705/14 : Seyfert galaxies in the mid-IR (Deo+, 2009) J/A+A/418/465 : Mid-infrared and hard X-ray emission in AGN (Lutz+, 2004) J/ApJS/125/349 : Morphology of 12micron Seyfert Galaxies (Hunt+, 1999) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 14 A14 --- Name Galaxy name 16- 17 I2 h RAh Hour of Right Ascension (J2000) 19- 20 I2 min RAm Minute of Right Ascension (J2000) 22- 25 F4.1 s RAs Second of Right Ascension (J2000) 27 A1 --- DE- Sign of the Declination (J2000) 28- 29 I2 deg DEd Degree of Declination (J2000) 31- 32 I2 arcmin DEm Arcminute of Declination (J2000) 34- 35 I2 arcsec DEs Arcsecond of Declination (J2000) 37- 39 A3 --- OType Old classification (Sy1 or Sy2) 41- 48 A8 --- OType2 New classification (1) 50- 57 F8.6 --- z NED redshift 59- 62 F4.2 Jy S12 IRAS flux density at 12 microns 64- 68 F5.2 Jy S25 IRAS flux density at 25 microns 70- 79 A10 "YYYY/MM/DD" Date Date of the observation 81- 87 A7 s SHTime Integration time of SH observation 89- 94 A6 s LHTime Integration time of LH observation 96- 98 A3 --- Ref Reference(s) (2)
Note (1): Classification as follows: HBLR = Seyfert with hidden broad-line regions (AGN 1). non-HBLR = Seyfert with no detectable broad lines in either direct or polarized spectroscopy (AGN 2). non-BLR = Object for which there is no evidence of broad lines, but it lacks polarization observations. non-Sy = LINER, HII or starburst galaxies. See section 2 for further details. Note (2): Reference as follows: 1 = Data without off-source measurements; 2 = Data from Spitzer Archive; 3 = Data from P50253 to be released.
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 14 A14 --- Name Galaxy name (3) 16 A1 --- l_SIV Limit flag on SIV 17- 21 F5.2 10-17W/m2 SIV ? Integrated SH [SIV] 10.51 micron line flux (4) 23- 26 F4.2 10-17W/m2 e_SIV ? Uncertainty in SIV (4) 28 A1 --- l_NeII Limit flag on NeII 29- 34 F6.2 10-17W/m2 NeII ? Integrated SH [NeII] 12.81 micron line flux (4) 36- 39 F4.2 10-17W/m2 e_NeII ? Uncertainty in NeII (4) 41 A1 --- l_NeV14 Limit flag on NeV14 42- 46 F5.2 10-17W/m2 NeV14 Integrated SH [NeV] 14.32 micron line flux (4) 48- 51 F4.2 10-17W/m2 e_NeV14 ? Uncertainty in NeV14 (4) 53- 58 F6.2 10-17W/m2 NeIII Integrated SH [NeIII] 15.56 micron line flux (4) 60- 63 F4.2 10-17W/m2 e_NeIII Uncertainty in NeIII (4) 65 A1 --- l_SIII18 Limit flag on SIII18 66- 70 F5.2 10-17W/m2 SIII18 ? Integrated SH [SIII] 18.71 micron line flux (4) 72- 75 F4.2 10-17W/m2 e_SIII18 ? Uncertainty in SIII18 (4) 77 A1 --- l_SIII18.2 Limit flag on SIII18.2 78- 82 F5.2 10-17W/m2 SIII18.2 ? Integrated LH [SIII] 18.71 micron line flux (4) 84- 87 F4.2 10-17W/m2 e_SIII18.2 ? Uncertainty in SIII18.2 (4) 89 A1 --- l_NeV24 Limit flag on NeV24 90- 94 F5.2 10-17W/m2 NeV24 Integrated LH [NeV] 24.32 micron line flux (4) 96-100 F5.2 10-17W/m2 e_NeV24 ? Uncertainty in NeV24 (4) 102 A1 --- l_OIV Limit flag on OIV 103-108 F6.2 10-17W/m2 OIV Integrated LH [OIV] 25.89 micron line flux (4) 110-114 F5.2 10-17W/m2 e_OIV ? Uncertainty in OIV (4) 116 A1 --- l_SIII33 Limit flag on SIII33 117-122 F6.2 10-17W/m2 SIII33 ? Integrated LH [SIII] 33.48 micron line flux (4) 124-129 F6.2 10-17W/m2 e_SIII33 ? Uncertainty in SIII33 (4) 131 A1 --- l_SiII Limit flag on SiII 132-138 F7.2 10-17W/m2 SiII ? Integrated LH [SiII] 34.82 micron line flux (4) 140-144 F5.2 10-17W/m2 e_SiII ? Uncertainty in SiII (4)
Note (3): In table 2, MCG-03-39-064 is a misprint for MCG-03-34-064; corrected at CDS. Note (4): In units of 10-14erg/s/cm2.
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 14 A14 --- Name Galaxy name 16 A1 --- l_S3 Limit flag on S3 17- 21 F5.2 10-17W/m2 S3 ? Integrated H_2_S(3) line flux (4) 23- 26 F4.2 10-17W/m2 e_S3 ? Uncertainty in S3 (4) 28 A1 --- l_S2 Limit flag on S2 29- 33 F5.2 10-17W/m2 S2 Integrated H_2_S(2) line flux (4) 35- 38 F4.2 10-17W/m2 e_S2 ? Uncertainty in S2 (4) 40 A1 --- l_S1 Limit flag on S1 41- 45 F5.2 10-17W/m2 S1 Integrated H_2_S(1) line flux (4) 47- 50 F4.2 10-17W/m2 e_S1 ? Uncertainty in S1 (4) 52 A1 --- l_S0 Limit flag on S0 53- 58 F6.2 10-17W/m2 S0 Integrated H_2_S(0) line flux (4) 60- 64 F5.2 10-17W/m2 e_S0 ? Uncertainty in S0 (4) 66- 71 F6.2 10-17W/m2 PAH ? Integrated PAH 11.25 micron feature flux (4) 73- 78 F6.3 um EqW ? Equivalent width of PAH 11.25 micron feature
Note (4): In units of 10-14erg/s/cm2.
History: From electronic version of the journal References: Tommasin et al. Paper I. 2008ApJ...676..836T
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 08-Mar-2012
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