J/ApJ/741/32ivo://CDS.VizieR/J/ApJ/741/32doi:10.26093/cds/vizier.17410032CDSDiaz-Santos T.Charmandaris V.Armus L.Stierwalt S.Haan S.,Mazzarella J.M.Howell J.H.Veilleux S.Murphy E.J.Petric A.O.,Appleton P.Evans A.S.Sanders D.B.Surace J.A.2017-12-22T05:33:06Z2013-04-10T12:45:12ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxiesinfrared-sourcesactive-galactic-nucleiinfrared-astronomyspectroscopyWe present results from the second part of our analysis of the extended mid-infrared (MIR) emission of the GOALS sample based on 5-14um low-resolution spectra obtained with the Infrared Spectrograph on Spitzer. We calculate the fraction of extended emission (FEE) as a function of wavelength for all galaxies in the sample, FEE_{lambda}_, defined as the fraction of the emission that originates outside of the unresolved central component of a source, and spatially separate the MIR spectrum of a galaxy into its nuclear and extended components. We find that the [NeII]12.81um emission line is as compact as the hot dust MIR continuum, while the polycyclic aromatic hydrocarbon (PAH) emission is more extended. In addition, the 6.2 and 7.7um PAH emission is more compact than that of the 11.3um PAH, which is consistent with the formers being enhanced in a more ionized medium. The presence of an active galactic nucleus (AGN) or a powerful nuclear starburst increases the compactness and the luminosity surface density of the hot dust MIR continuum, but has a negligible effect on the spatial extent of the PAH emission on kpc-scales. Furthermore, it appears that both processes, AGN and/or nuclear starburst, are indistinguishable in terms of how they modify the integrated PAH-to-continuum ratio of the FEE in (ultra)luminous infrared galaxies ((U)LIRGs). Globally, the 5-14um spectra of the extended emission component are homogeneous for all galaxies in the GOALS sample.2011ApJ...741...32Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/741/32CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/546/A64 : H & K-band stacked spectra of U/LIRGs (Piqueras Lopez+, 2012)J/ApJ/715/572 : GOALS UV and FIR properties (Howell+, 2010)J/ApJ/723/993 : Spatial extent of (U)LIRGs in the MIR. I. (Diaz-Santos+, 2010)J/ApJ/725/2270 : Mid-IR emission lines in AGNs (Pereira-Santaella+, 2010)J/ApJ/658/778 : Spitzer mid-IR spectroscopy of z~2 ULIRGs (Yan+, 2007)J/A+A/418/465 : Mid-infrared and hard X-ray emission in AGN (Lutz+, 2004)J/AJ/126/1607 : IRAS Revised Bright Galaxy Sample (Sanders+, 2003)J/AJ/121/97 : K-band spectroscopy of ULIRGs (Murphy+, 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/741/32https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/741/32http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/741/32https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/741/32https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/741/32http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/741/32GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/741/32/table1 (FEEs (fraction of extended emission) of various MIR (mid-infrared) features)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/741/32/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/741/32/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/741/32/table1?GETtext/xml+votable180.050000true2.472291725.92438890.0055555555555555566/226 231 286 295 538 627 629 650 700 1276 1521 1677 1701 1702 1865 1918 2309 2363 2433 2518 2680 3364 3446 3824 3934 4993 5116 5130 5523 5816 5865 6348 6781 7552 8106 8111 8482 8673 8997 9133 9770 9895 10081 10144 10210 10281 10404 10453 10465 10628 10716 11029 11101 11180 11206 11908 12537 13021 13184 13523 13632 14164 15323 15333 15570 16091 16690 16758 17075 17252 17492 17506 17904 18406 18432 18753 18932 19283 20060 20061 20118 20208 20254 20371 20895 20896 21016 21416 21747 22468 22721 22792 23339 23921 24123 24144 24163 24232 24293 24631 24855 24958 25462 25610 26028 26035 26198 26298 26324 26811 26932 27340 27537 28188 28393 28999 29439 29680 29937 30027 30383 30580 30810 30822 30879 31081 31158 31430 31503 32187 32548 32740 34010 34397 34531 34627 34695 35067 35576 35602 35608 37113 37564 37821 38129 38139 38246 38285 38786 38935 39472 39960 40082 40801 41276 41402 41430 42010 42855 43078 43082 43107 43147 43298 43389 43564 43925 43994 44626 44671 45387 46077 46079 46130 46794 46811 47029 47162 47543 47854 48665https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/741/32?format=asciiInfrareddefaultJ/ApJ/741/32/table1FEEs (fraction of extended emission) of various MIR (mid-infrared) featuresSimbadNameSimbad column added by the CDSmeta.idcharNameGalaxy namemeta.id;meta.maincharm_Name[*/m] Multiple system (1)meta.code.multipcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainf6.2? Fraction of extended emission (FEE) of the 6.2 micron PAHphot.flux;arith.ratiofloatnullablee_f6.2? Uncertainty in f6.2stat.errorfloatnullablef6.7Fraction of extended emission (FEE) of the continuum at 6.7 micronsphot.flux;arith.ratiofloate_f6.7Uncertainty in f6.7stat.errorfloatf7.7? Fraction of extended emission (FEE) of the 7.7 micron PAHphot.flux;arith.ratiofloatnullablee_f7.7? Uncertainty in f7.7stat.errorfloatnullablef9.7Fraction of extended emission (FEE) at the 9.7 micron Si featurephot.flux;arith.ratiofloate_f9.7Uncertainty in f9.7stat.errorfloatf11.3? Fraction of extended emission (FEE) at the 11.3 micron PAHphot.flux;arith.ratiofloatnullablee_f11.3? Uncertainty in f11.3stat.errorfloatnullablef12.8? Fraction of extended emission (FEE) of the 12.8 micron [Ne II] emission linephot.flux;arith.ratiofloatnullablee_f12.8? Uncertainty in FEE12.8stat.errorfloatnullableType[0/4]? FEE({lambda}) function type (2)meta.codeintnullableGOALSCross-match with GOALS UV and FIR catalog within 5"meta.ref.urlintnullableNEDSimbad column added by the CDSmeta.refchar