J/ApJ/905/55ivo://CDS.VizieR/J/ApJ/905/55doi:10.26093/cds/vizier.19050055CDSLai T.S.-Y.Smith J.D.T.Baba S.Spoon H.W.W.Imanishi M.2022-08-26T06:33:28Z2022-06-22T10:09:19ZCDS support team

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

cds-question@unistra.frgalaxiesinfrared-sourcesstar-forming-regionsinterstellar-mediumline-intensitiessurveysWe present a large sample of 2.5-38{mu}m galaxy spectra drawn from a cross-archival comparison in the AKARI-Spitzer Extragalactic Spectral Survey, and investigate a subset of 113 star-forming galaxies with prominent polycyclic aromatic hydrocarbon (PAH) emission spanning a wide range of star formation properties. With AKARI's extended 2.5-5{mu}m wavelength coverage, we self-consistently model for the first time all PAH emission bands using a modified version of PAHfit. We find L_PAH3.3_/L_IR_~0.1%, and the 3.3{mu}m PAH feature contributes ~1.5%-3% to the total PAH power-somewhat less than earlier dust models have assumed. We establish a calibration between 3.3{mu}m PAH emission and star formation rate, but also find regimes where it loses reliability, including at high luminosity and low metallicity. The 3.4{mu}m aliphatic emission and a broad plateau feature centered at 3.47{mu}m are also modeled. As the PAH feature with the shortest wavelength, the one at 3.3{mu}m is susceptible to attenuation, leading to differences of a factor of ~3 in the inferred star formation rate at high obscuration with different assumed attenuation geometries. Surprisingly, L_PAH3.3_/L_{Sigma}PAH_ shows no sign of decline at high luminosities, and the low-metallicity dwarf galaxy II Zw 40 exhibits an unusually strong 3.3{mu}m band; both results suggest either that the smallest PAHs are better able to survive under intense radiation fields than presumed, or that PAH emission is shifted to shorter wavelengths in intense and high-energy radiation environments. A photometric surrogate for 3.3{mu}m PAH luminosity using JWST/NIRCam is provided and found to be highly reliable at low redshift.2020ApJ...905...55Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/905/55CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVI/64 : Recombination line intensities for hydrogenic ions (Storey+ 1995)J/AJ/126/1607 : IRAS Revised Bright Galaxy Sample (Sanders+, 2003)J/ApJ/656/770 : Mid-IR spectrum of star-forming galaxies (Smith+, 2007)J/ApJ/705/885 : PAH in galaxies at z~0.1 (O'Dowd+, 2009)J/MNRAS/405/2505 : Nuclear activity in ULIRGs (Nardini+, 2010)J/ApJ/723/895 : IR luminosities and aromatic features of 5MUSES (Wu+, 2010)J/ApJ/744/20 : S^4^MC project: 6 star forming reg. PAHs (Sandstrom+, 2012)J/PASJ/65/103 : PAH3.3um/IR luminosity for infrared galaxies (Yamada+, 2013)J/ApJ/790/124 : Dust and gas physics of the GOALS sample (Stierwalt+, 2014)J/MNRAS/455/1796 : IDEOS redshift catalogue (Hernan-Caballero+, 2016)J/MNRAS/469/4933 : Extended red emission in IC59 and IC63 (Lai+, 2017)J/A+A/617/A130 : Luminous infrared galaxies AKARI 2.5-5um data (Inami+, 2018)J/ApJ/884/136 : PAH data of star-forming gal. using Spitzer/IRS (Xie+, 2019)J/ApJ/895/38 : MIR extinction toward Cyg OB2-12 ISM (Hensley+, 2020)http://darts.isas.jaxa.jp/astro/akari/pointing/ : DARTS databasehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/905/55https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/905/55http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/905/55https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/905/55https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/905/55http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/905/55GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/905/55/asess (Bright-PAH in the AKARI-Spitzer Extragalactic Spectral Survey (ASESS) list (Table 1) and observations (Table 6))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/905/55/asess?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/905/55/asess?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/905/55/asess?GETtext/xml+votable180.050000true2.472625.9240.0055555555555555566/226 231 627 650 700 2433 2518 3824 3934 5464 5523 5560 5630 5816 7229 7345 7386 7424 8997 9084 9342 9786 9998 10081 10144 10187 10210 10317 10324 10465 10716 10892 11006 11029 11180 11462 11521 11908 11913 12153 13021 13523 14164 15323 15333 15570 16091 16641 16690 16712 16758 17075 17252 17492 18406 18432 18753 18932 20060-20061 20118 20254 20896 22721 23148 23339 23566 24957 25916 26047 26198 26298 26324 27617 28393 28999 30383 30580 30822 31158 31503 34737 35067 35602 35608 36528 36723 38129 38139 38246 38935 39472 40410 40801 41276 41402 43082 43107 43147 43925 43994 44660 45387 46077 46130 46296 46811 47051 47543 47854https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/905/55?format=asciiInfrareddefaultJ/ApJ/905/55/asessBright-PAH in the AKARI-Spitzer Extragalactic Spectral Survey (ASESS) list (Table 1) and observations (Table 6)SimbadNameSimbad column added by the CDSmeta.idcharnullablePhaseIRC phasetime.phasecharNameIDEOS galaxy identifiermeta.id;meta.maincharprimaryNEDNED column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_Namea = also "II Zw 40"meta.notecharz[0.003/0.191] Spectroscopic redshiftsrc.redshiftfloatRAJ2000[2.47/358] Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-69.3/81.01] Declination (J2000)degpos.eq.dec;meta.mainEW[0.04/0.92] The 6.2um PAH equivalent widthumspect.line.eqWidth;em.IR.4-8umfloatSSi[-1.4/-0.01] Strength of 9.7um silicate feature (1)phot.flux;arith.ratiofloatlogLIR[9.37/12.47]? log 8-1000um IR luminosity (2)log(solLum)phys.luminosity;em.IRfloatnullabler_logLIRReference code for logLIR (3)meta.ref;pos.framecharIDAKARI/IRC galaxy identifiermeta.idcharobsIRC[1100011/5200268] IRC observation identifiermeta.id;obs.param;obsintIRCsIDIRC sub-ID identifiermeta.id;obscharObsIDIDEOS observation identifiermeta.id;obs.param;obscharJ/ApJ/905/55/table3PAHfit result of bright-PAH in the mixed geometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameIDEOS galaxy identifiermeta.id;meta.maincharprimaryL3.3[0.03/475] Integrated luminosity of 3.3um emission feature (1)1e+07solLumphys.luminosity;em.IRfloate_L3.3[0.005/68] Uncertainty in L3.31e+07solLumstat.errorfloatl_L3.4The 3{sigma} upper limit on L3.4meta.code.errorcharL3.4[0.012/34]? Integrated luminosity of 3.4um emission feature (1)1e+07solLumphys.luminosity;em.IRfloatnullablee_L3.4[0.01/4]? Uncertainty in L3.41e+07solLumstat.errorfloatnullablel_L3.47The 3{sigma} upper limit on L3.47meta.code.errorcharL3.47[0.012/45]? Integrated luminosity of 3.47um emission feature (1)1e+07solLumphys.luminosity;em.IRfloatnullablee_L3.47[0.003/6]? Uncertainty in L3.471e+07solLumstat.errorfloatnullableL6.2[0.01/108.1] Integrated luminosity of primary 6.2um PAH emission1e+08solLumphys.luminosity;em.IRfloate_L6.2[0.001/4] Uncertainty in L6.21e+08solLumstat.errorfloatL11.3[0.009/113]? Integrated luminosity of primary 11.3um complex PAH emission1e+08solLumphys.luminosity;em.IR.8-15umfloatnullablee_L11.3[0.001/5.2]? Uncertainty in L11.31e+08solLumstat.errorfloatnullablel_L17The 3{sigma} upper limit on L17meta.code.errorcharL17[0.18/73.4]? Integrated luminosity of primary 17um complex PAH emission1e+08solLumphys.luminosity;em.IRfloatnullablee_L17[0.01/10]? Uncertainty in L171e+08solLumstat.errorfloatnullableSigma[0.013/112] Total integrated PAH luminosity1e+09solLumphys.luminosity;em.IRfloate_Sigma[0.001/2.2] Uncertainty in Sigma1e+09solLumstat.errorfloatLNeII[0.037/231] Integrated Ne II line emission1e+07solLumphys.luminosity;em.IR.8-15umfloate_LNeII[0.001/16] Uncertainty in LNeII1e+07solLumstat.errorfloatl_LNeIIIThe 3{sigma} upper limit on LNeIIImeta.code.errorcharLNeIII[0.07/253]? Integrated Ne III line emission1e+07solLumphys.luminosity;em.IRfloatnullablee_LNeIII[0.0/13]? Uncertainty in NeIIII1e+07solLumstat.errorfloatnullableSFR[0.4/377]? Neon line inferred star formation rate (1)solMass/yrphys.SFR;spect.linefloatnullableJ/ApJ/905/55/table4PAHfit result of bright-PAH in the obscured continuum geometryNameIDEOS galaxy identifiermeta.id;meta.maincharprimaryL11.3[0.009/113]? Integrated luminosity of primary 11.3um complex PAH emission1e+08solLumphys.luminosity;em.IR.8-15umfloatnullablee_L11.3[0.001/5.2]? Uncertainty in L11.31e+08solLumstat.errorfloatnullablel_L17The 3{sigma} upper limit on L17meta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintL3.3[0.03/475] Integrated luminosity of 3.3um emission feature (1)1e+07solLumphys.luminosity;em.IRfloate_L3.3[0.005/68] Uncertainty in L3.31e+07solLumstat.errorfloatl_L3.4The 3{sigma} upper limit on L3.4meta.code.errorcharL3.4[0.012/34]? Integrated luminosity of 3.4um emission feature (1)1e+07solLumphys.luminosity;em.IRfloatnullablee_L3.4[0.01/4]? Uncertainty in L3.41e+07solLumstat.errorfloatnullablel_L3.47The 3{sigma} upper limit on L3.47meta.code.errorcharL3.47[0.012/45]? Integrated luminosity of 3.47um emission feature (1)1e+07solLumphys.luminosity;em.IRfloatnullablee_L3.47[0.003/6]? Uncertainty in L3.471e+07solLumstat.errorfloatnullableL6.2[0.01/108.1] Integrated luminosity of primary 6.2um PAH emission1e+08solLumphys.luminosity;em.IRfloate_L6.2[0.001/4] Uncertainty in L6.21e+08solLumstat.errorfloatL17[0.18/73.4]? Integrated luminosity of primary 17um complex PAH emission1e+08solLumphys.luminosity;em.IRfloatnullablee_L17[0.01/10]? Uncertainty in L171e+08solLumstat.errorfloatnullableSigma[0.013/112] Total integrated PAH luminosity1e+09solLumphys.luminosity;em.IRfloate_Sigma[0.001/2.2] Uncertainty in Sigma1e+09solLumstat.errorfloatLNeII[0.037/231] Integrated Ne II line emission1e+07solLumphys.luminosity;em.IR.8-15umfloate_LNeII[0.001/16] Uncertainty in LNeII1e+07solLumstat.errorfloatl_LNeIIIThe 3{sigma} upper limit on LNeIIImeta.code.errorcharLNeIII[0.07/253]? Integrated Ne III line emission1e+07solLumphys.luminosity;em.IRfloatnullablee_LNeIII[0.0/13]? Uncertainty in NeIIII1e+07solLumstat.errorfloatnullableSFR[0.4/377]? Neon line inferred star formation rate (1)solMass/yrphys.SFR;spect.linefloatnullableJ/ApJ/905/55/fig6Galaxy templates of the eight classes defined in Figure 1(a)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClassGalaxy template class (see Section 2.5)meta.code.class;src.class.starGalaxycharlambda[2.6/28] Wavelengthumem.wlfloatFlux[0.05/32.1] Density normalized f_{nu}_ at 6.2umphot.flux;arith.ratiofloat