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J/ApJ/698/1682      Most luminous dusty galaxies                (Weedman+, 2009)

Evolution of the most luminous dusty galaxies. Weedman D.W., Houck J.R. <Astrophys. J., 698, 1682-1697 (2009)> =2009ApJ...698.1682W
ADC_Keywords: Active gal. nuclei ; Spectra, infrared ; Redshifts Keywords: galaxies: active - galaxies: distances and redshifts - galaxies: evolution - galaxies: formation - galaxies: starburst - infrared: galaxies Abstract: A summary of mid-infrared continuum luminosities arising from dust is given for very luminous galaxies, LIR>1012L, with 0.005<z<3.2 containing active galactic nuclei (AGNs), including 115 obscured AGNs and 60 unobscured (type 1) AGNs. All sources have been observed with the Spitzer Infrared Spectrograph. Obscured AGNs are defined as having optical depth τ>0.7 in the 9.7um silicate absorption feature (i.e., half of the continuum is absorbed) and having equivalent width of the 6.2um polycyclic aromatic hydrocarbon feature <0.1um (to avoid sources with a significant starburst component). Unobscured AGNs are defined as those that show silicate in emission. Luminosity νLν(8um) for the most luminous obscured AGNs is found to scale as (1+z)2.6 to z=2.8. For unobscured AGNs, the scaling with redshift is similar, but luminosities νLν(8um) are approximately three times greater for the most luminous sources. Using both obscured and unobscured AGNs having total infrared fluxes from the Infrared Astronomical Satellite, empirical relations are found between νLν(8um) and LIR. Description: In this paper, we assemble data from 20 different Spitzer programs from the archive to summarize a wide variety of AGNs IRS spectra, including 115 heavily obscured sources classified by having strong absorption in the 9.7um silicate feature, and 60 unobscured sources (type 1 AGN) as classified by silicate emission. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 69 115 Continuum luminosities for obscured AGNs table2.dat 69 60 Continuum luminosities for Silicate emission AGNs
See also: J/ApJ/693/370 : 24um flux-limited sample of galaxies (Weedman+, 2009) J/MNRAS/395/1695 : Spitzer mid-IR spectroscopy of LIRGs (Hernan-Caballero+, 2009) J/ApJ/683/114 : IRS spectra of faint IRAS sources (Sargsyan+, 2008) J/ApJ/658/778 : Spitzer mid-IR spectroscopy of z∼2 ULIRGs (Yan+, 2007) J/ApJ/671/323 : Spitzer Spectra of a 10mJy galaxy sample (Houck+, 2007) J/AJ/133/186 : Optical spectroscopy of 77 luminous AGNs and QSOs (Lacy+, 2007) J/ApJ/642/673 : IR-selected obscured AGN candidates (Polletta+, 2006) J/ApJ/653/127 : 9.7um silicate features in AGNs (Shi+, 2006) J/MNRAS/372/741 : SXDF 100µJy catalogue (Simpson+, 2006) J/AJ/131/2859 : Extragalactic First Look Survey: 24µm data (Fadda+, 2006) : Sloan Digital Sky Survey home page Byte-by-byte Description of file: table1.dat table2.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Running sequence number 5- 20 A16 --- Name AGN name 21- 22 I2 h RAh Hour of right ascension (J2000) 23- 24 I2 min RAm Minute of right ascension (J2000) 25- 29 F5.2 s RAs Second of right ascension (J2000) 30 A1 --- DE- Sign of the declination (J2000) 31- 32 I2 deg DEd Degree of declination (J2000) 33- 34 I2 arcmin DEm Arcminute of declination (J2000) 35- 38 F4.1 arcsec DEs Arcsecond of declination (J2000) 40- 45 F6.4 --- z Redshift 46 A1 --- r_z [efg] Flag on z (1) 48- 54 F7.2 mJy F8um Observed flux density in continuum at rest frame 8um (2) 56- 60 F5.2 [10-7W] logL8 Rest-frame luminosity nuL_nu(8um) (3) 62- 66 F5.2 [10-7W] logLir ? Infrared luminosity (only for table 2) (4) 68- 69 I2 --- Ref Reference number (5)
Note (1): Flag as follows: e = Optical redshift and classification in Lacy et al. (2007, Cat. J/AJ/133/186) f = Optical redshift and classification in Simpson et al. (2006, Cat. J/MNRAS/372/741, <[SMR2006] VLA JHHMMSS+DDMMm> in Simbad) g = Optical redshift and classification from the SDSS Note (2): Observed flux density measured from published spectra in references given, or from our own extractions, as described in Section 2.3. Typical uncertainties are ±5% for sources with fν(8um)≳5mJy and ±10% for sources with fν(8um)∼1mJy. Typical uncertainties are ±5% in table 2. For sources in Schweitzer et al. (2008ApJ...679..101S, reference 17), fν(8um) is determined by scaling from published fν(6um) using the average spectra in Figure 2 of Schweitzer et al. for sources without PAH (characteristic of the highest luminosity sources), such that fν(8um)/fν(6um)=1.12. Note (3): Rest-frame luminosity determined using peak fν(8um) and luminosity distances DL from E.L. Wright,, for H0=71km/s/Mpc, ΩM=0.27 and ΩΛ=0.73. (log[νLν(8um)(L)]=log[νLν(8um)(erg/s)]-33.59.) Note (4): For sources in Schweitzer et al. (2008ApJ...679..101S) (reference 17), Lir is determined as in Sanders & Mirabel (1996ARA&A..34..749S) for sources having measured IRAS flux densities at all IRAS wavelengths; Lir=2.14x1036DL2[13.5(fν(12um))+5.2(fν(25um)) +2.58(fν(60um))+(f_ν(100um))] for flux densities in mJy and luminosities in erg/s (L=3.83x1033erg/s). Note (5): Reference for IRS spectrum as follows: 1 = Farrah et al. (2007ApJ...667..149F); 2 = Imanishi et al. (2007ApJS..171...72I); 3 = Sargsyan et al. (2008, Cat. J/ApJ/683/114); 4 = Shi et al. (2006, Cat. J/ApJ/653/127); 5 = Weedman & Houck (2009, Cat. J/ApJ/693/370); 6 = new spectra in Figure 2 [sources 73, 111 from archival program 30447 (G. Fazio, P.I.), source 90 from archival program 20629 (L. Yan, P.I.), source 16 from archival program 40539 (G. Helou, P.I), sources 13,20,21, 23,70 from our own new observations, program 50031]; 7 = Brand et al. (2008ApJ...680..119B; <[BWD2008] SST24 JHHMMSS.s+DDMMSS> in Simbad); 8 = Farrah et al. (2009ApJ...696.2044F; <SWIRE> in Simbad); 9 = Brand et al. (2008ApJ...673..119B; <[BWD2008] SST24 JHHMMSS.s+DDMMSS> in Simbad); 10 = Houck et al. (2005ApJ...622L.105H; <[HSW2005] SST24> in Simbad); 11 = Weedman et al. (2006ApJ...638..613W; <[WLH2006] SST24> in Simbad); 12 = Weedman et al. (2006ApJ...653..101W); 13 = Polletta et al. (2008ApJ...675..960P); 14 = Yan et al. (2007, Cat. J/ApJ/658/778; <[YSF2007] SST24> in Simbad); Sajina et al. (2007ApJ...664..713S); 15 = Martinez-Sansigre et al. (2008ApJ...674..676M); 16 = Hao et al. (2005ApJ...625L..75H); 17 = Schweitzer et al. (2008ApJ...679..101S); 18 = Markwick-Kemper et al. (2007ApJ...668L.107M); 19 = new extractions of sources in the FLS and SWIRE Lockman fields having fν(24um)>5mJy and R>20mag which have optical redshifts and classifications cited as type 1 AGN in the NED; 20 = new extractions of sources available within Spitzer Legacy Program 40539 (G. Helou, P.I.), a flux limited sample with fν(24um)>5mJy, which have optical redshifts and classifications as type 1 AGN cited in the NED or as determined from our examination of SDSS spectra, not including 2 sources also in reference 19.
History: From electronic version of the journal
(End) Emmanuelle Perret [CDS] 16-Jun-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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