J/ApJ/730/19 IR spectra and SEDs for starbursts and AGNs (Sargsyan+, 2011) ================================================================================ Infrared spectra and spectral energy distributions for dusty starbursts and active galactic nuclei. Sargsyan L., Weedman D., Lebouteiller V., Houck J., Barry D., Hovhannisyan A., Mickaelian A. =2011ApJ...730...19S ================================================================================ ADC_Keywords: Active gal. nuclei ; Spectra, infrared ; Galaxies, IR ; Equivalent widths ; Photometry, infrared Keywords: galaxies: active - galaxies: distances and redshifts - galaxies: evolution - galaxies: starburst - infrared: galaxies Abstract: We present spectroscopic results for all galaxies observed with the Spitzer Infrared Spectrograph (IRS) that also have total infrared fluxes f_IR_ measured with the Infrared Astronomical Satellite (IRAS), also using AKARI photometry when available. Infrared luminosities and spectral energy distributions (SEDs) from 8um to 160um are compared to polycyclic aromatic hydrocarbon emission from starburst galaxies or mid-infrared dust continuum from active galactic nuclei (AGNs) at rest-frame wavelengths ~8um. A total of 301 spectra are analyzed for which IRS and IRAS include the same unresolved source, as measured by the ratio f_{nu}_(IRAS 25um)/f_{nu}_(IRS 25um). Sources have 0.004 10, Version 2.0 (Moshir+ 1989) J/MNRAS/414/500 : Spitzer/IRS ATLAS project source (Hernan-Caballero+, 2011) J/MNRAS/409/2 : Herschel sources SED model parameters (Rowan-Robinson+, 2011) J/ApJ/713/970 : SED templates for AGNs and galaxies (Assef+, 2010) J/ApJS/187/64 : The simultaneous optical-to-X-ray SED of AGNs (Grupe+, 2010) J/ApJ/709/884 : Starburst-AGN composites in LIRG mergers (Yuan+, 2010) J/ApJ/719/1191 : Mid-IR indicators of SF and AGN in galaxies (Treyer+, 2010) J/ApJ/697/182 : Dust emission from unobscured AGN (Thompson+, 2009) J/ApJ/684/136 : SEDs of ELAIS-S1 mid-IR sources (Gruppioni+, 2008) J/ApJ/683/114 : IRS spectra of faint IRAS sources (Sargsyan+, 2008) J/ApJ/663/81 : SED of hard X-ray selected AGN in XMDS (Polletta+, 2007) J/ApJ/619/755 : Modeling starburst SEDs (Dopita+, 2005) J/ApJS/158/139 : Atlas of warm AGN and starbursts (Keel+, 2005) http://www.sdss.org/ : SDSS home page Byte-by-byte Description of file: table[135].dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 I3 --- Seq Source number 5- 28 A24 --- Name Source name (G1) 30- 41 A12 --- IRAS IRAS FSC catalog name (FHHMMm+DDMMA; B1950; Cat. II/156) 43- 44 I2 h RAh Hour of Right Ascension (J2000) 46- 47 I2 min RAm Minute of Right Ascension (J2000) 49- 53 F5.2 s RAs Second of Right Ascension (J2000) 55 A1 --- DE- Sign of the Declination (J2000) 56- 57 I2 deg DEd Degree of Declination (J2000) 59- 60 I2 arcmin DEm Arcminute of Declination (J2000) 62- 65 F4.1 arcsec DEs Arcsecond of Declination (J2000) 67- 72 F6.4 --- z NED optical redshift 74 A1 --- f_z [a] a: from Spitzer/IRS spectrum 76- 81 A6 --- SDSS Optical classification from SDSS spectra (agn, comp, sb or em+abs) (1) 83 A1 --- l_EW6.2 Limit flag on EW6.2 85- 89 F5.3 um EW6.2 PAH 6.2{mu}m feature rest frame equivalent width (2) 91 A1 --- l_F6.2 Limit flag on F6.2 92- 97 F6.2 10-16W/m2 F6.2 Total PAH 6.2{mu}m feature flux (2) 99 A1 --- l_F11.3 Limit flag on F11.3 100-105 F6.2 10-16W/m2 F11.3 ? Total PAH 11.3{mu}m feature flux (2) 107-112 F6.1 mJy F7.7 Flux density at 7.7{mu}m 114 A1 --- f_F7.7 [f] F7.7 measured at 7.9{mu}m (3) 116-119 F4.2 --- SStr ? Silicate feature strength, only for AGNs (4) 121 A1 --- f_SStr [P] PAH emission + silicate absorption (5) -------------------------------------------------------------------------------- Note (1): Determined from presence of broad hydrogen emission lines or ratios among [OIII] (5007), H{beta}, [NII] (6584), and H{alpha}. Note (2): Fit with single gaussian on a linear continuum within rest wavelength range 5.5{mu}m to 6.9{mu}m and 10.5{mu}m to 12.0{mu}m for the 6.2{mu}m and 11.3{mu}m features, respectively. Note (3): f = f_{nu}_(7.9{mu}m) measured because continuum stronger than PAH peak f_{nu}_(7.7{mu}m). Note (4): Strength of silicate feature defined as f_{nu}_(10{mu}m,observed)/f_{nu}_(10{mu}m,continuum), for f_{nu}_(10{mu}m,continuum) extrapolated linearly between f_{nu}_(7.9{mu}m) and f_{nu}_(13{mu}m). Values >1 correspond to silicate emission and values <1 to silicate absorption. Note (5): P = Both PAH emission and silicate absorption are present; Absorption strength is not measured because continuum level at 7.9{mu}m cannot be reliably determined. -------------------------------------------------------------------------------- Byte-by-byte Description of file: table[246].dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 I3 --- Seq Source number 5- 16 A12 --- IRAS IRAS FSC name (FHHMMm+DDMMA; B1950) (G1) 19- 24 F6.3 Jy F25-S Spitzer/IRS 25{mu}m flux density 26- 30 F5.3 Jy F8 ? AKARI 8{mu}m flux density 32- 36 F5.3 Jy F12 IRAS 12{mu}m flux density 38- 42 F5.3 Jy F18 ? AKARI 18{mu}m flux density 44- 49 F6.3 Jy F25-I IRAS 25{mu}m flux density 51- 57 F7.3 Jy F60 IRAS 60{mu}m flux density 59- 65 F7.3 Jy F65 ? AKARI 65{mu}m flux density 67- 73 F7.3 Jy F90 ? AKARI 90{mu}m flux density 75- 81 F7.3 Jy F100 IRAS 100{mu}m flux density 83- 88 F6.3 Jy F140 ? AKARI 140{mu}m flux density 90- 96 F7.3 Jy F160 ? AKARI 160{mu}m flux density 98-103 F6.2 mJy F1.25 ? 2MASS 1.25{mu}m (J) flux density 105-110 F6.2 mJy F1.66 ? 2MASS 1.66{mu}m (H) flux density 112-116 F5.2 --- Ratio Ratio of far-IR to 7.7{mu}m (6) 118 A1 --- f_Ratio [fg] 7.9{mu}m used (7) 120-124 F5.2 [10-7W] logL Log of total IR luminosity; erg/s (8) -------------------------------------------------------------------------------- Note (6): Where R=f_IR_/{nu}f_{nu}_(7.7microns), for f(IR)=1.8e-11*[13.48f_{nu}_(12)+5.16f_{nu}_(25)+2.58f_{nu}_(60) + f_{nu}_(100)] in erg/cm^2^/s. Note (7): f = f_{nu}_(7.9microns) measured because continuum stronger than PAH peak f_{nu}_(7.7microns). g = Unique object, having highest value of R accompanied by unusually low L_IR_; no SDSS spectrum but optical image resembles a Blue Compact Dwarf (BCD). See also Bite (G1) below. Note (8): Where L_IR_=4{pi}D^2^f_IR_ for D the luminosity distance determined for H_0_=71km/s/Mpc, {Omega}_M_=0.27 and {Omega}_{Lambda}_=0.73, from Wright (2006PASP..118.1711W): http://www.astro.ucla.edu/~wright/CosmoCalc.html. -------------------------------------------------------------------------------- Global notes: Note (G1): In table 5 and 6, source #139 (IRASF17341+5704) is a unique object having optical classification like Blue Compact Dwarf (BCD) with narrow optical emission lines, strong [OIII]/H{beta} and very strong H{alpha}/[NII]. Also it has a weak PAH and optical spectrum like low luminosity BCD (e.g. Hunt et al. 2010ApJ...712..164H), but L_IR_ compares to normal starburst and AGN. -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 14-Sep-2012