J/MNRAS/405/2505ivo://CDS.VizieR/J/MNRAS/405/2505doi:10.26093/cds/vizier.74052505CDSNardini E.Risaliti G.Watabe Y.Salvati M.Sani E.2024-07-11T20:16:52Z2011-01-21T09:38:01ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleigalaxiesinfrared-sourcesWe present the results of a 5-8um spectral analysis performed on the largest sample of local ultraluminous infrared galaxies (ULIRGs) selected so far, consisting of 164 objects up to a redshift of ~0.35. The unprecedented sensitivity of the Infrared Spectrograph onboard Spitzer allowed us to develop an effective diagnostic method to quantify the active galactic nucleus (AGN) and starburst (SB) contribution to this class of objects. The large AGN over SB brightness ratio at 5-8um and the sharp difference between the spectral properties of AGN and SB galaxies in this wavelength range make it possible to detect even faint or obscured nuclear activity, and disentangle its emission from that of star formation. By defining a simple model we are also able to estimate the intrinsic bolometric corrections for both the AGN and SB components, and obtain the relative AGN/SB contribution to the total luminosity of each source.2010MNRAS.405.2505Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/405/2505CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/121/97 : K-band spectroscopy of ULIRGs (Murphy+, 2001)J/A+A/409/115 : VLA imaging of IRAS 1 Jy ULIRG sample (Nagar+, 2003)J/AJ/131/1942 : 2MASS observations of IRAS 1Jy ULIRGs (Chen+, 2006)J/ApJ/640/167 : AGNs and ULIRGs in the CDF-South (Alonso-Herrero+, 2006)J/A+A/467/565 : z=1-3 ULIRGs from the Spitzer SWIRE survey (Berta+, 2007)J/ApJ/658/778 : Spitzer mid-IR spectroscopy of z~2 ULIRGs (Yan+, 2007)J/MNRAS/375/115 : ULIRGs galaxies in SDSS, 2dF and 6dF (Hwang+, 2007)J/ApJ/674/172 : Oxygen abundances of LIRGs and ULIRGs (Rupke+, 2008)J/ApJS/182/628 : Spitzer quasar and ULIRG evolution study (Veilleux+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/405/2505https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/405/2505http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/405/2505https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/405/2505https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/405/2505http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/405/2505GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/405/2505/table1 (General properties and spectral parameters of our local ULIRG sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/405/2505/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/405/2505/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/405/2505/table1?GETtext/xml+votable180.050000true2.9304375-7.36871390.005555555555555556Cone search capability for table J/MNRAS/405/2505/table3 (Properties of the 52 high-redshift sources in the control sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/405/2505/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/405/2505/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/405/2505/table3?GETtext/xml+votable180.050000true6.527510.69027780.0055555555555555566/40 388 747 1703 4113 4121 4290 4412 4853 4898 5116 5213 5242 5257 5379 5464 5495 5508 5560 5758 5854 6070 6076-6078 6090 6112 6114 6696 7300 7445 7552 7724 7777 8133 8410 8520 8637 8673 8789 9077 9084 9144-9145 9149-9151 9276 9342 9397 9502 9617 9635 9640 9642 9770 9998 10000 10043 10047 10086 10108 10134 10152-10153 10156 10187 10317 10324 10414 10487 10512 10515-10516 10518 10653 11101 11206 11252 11274 11339 11492 11623 11790 11836 12900 13488 13601 13632 14868 14886 16024 16115 16478 16535 16641 16647 16712 16882 17075 17263-17264 17564 17606 17758 17819 17838 18024 18072 18919 19088 19569 19628 20211 20262 20389 21016 21142 21747 21995 22534 23148 24005 25094 25279 25310 25366 25561 26047 26087 26103 26120 26298 26407 26491 26540 26937 27502 27555 27614 27617 27842 27873 27892 28074 28212 28393 28522 29937 30008 30565 30580 31081 31258 31303 31327 31729 31796 33025 33204 33313 33409 33978 34020 34576 34737 35208 35330 35388 35390 35582 35675 35821 36038 36352 36421 36497 36526 36528 37027 37506 38919 38924 39960 40801 43107 43389 43877 43975 44452 44671 44753 45385 45587 46079 46130 46192 47051 47509 47683 48429 48561 48759 48865 490232.4696718532768785e-21 3.953759050367298e-21https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/405/2505?format=asciiInfrareddefaultJ/MNRAS/405/2505/table1General properties and spectral parameters of our local ULIRG samplezRedshiftsrc.redshiftfloatl_tauLimit flag on taumeta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIRASIRAS name (HHMMm+DDMM, B1950)meta.id;meta.maincharLirIR luminosity (log scale)log(solLum)phys.luminosityfloate_Lirrms uncertainty on logLirlog(solLum)stat.errorfloatAbol? AGN contribution to the bolometric flux%phys.luminosity;arith.ratiofloatnullablel_Abol1Limit flag on DAbol (1)meta.code.errorcharAbol11-{sigma} confidence range in Abol (lower limit)%phys.luminosity;arith.ratiofloatAbol2? 1-{sigma}sigma confidence range for Abol (upper limit)%phys.luminosity;arith.ratiofloatnullabletau? AGN optical depth {tau}phys.absorption.opticalDepthfloatnullablePIDSpitzer programme number, in pid.dat filemeta.id;obsintTypeMorphological type (LINER, H II, Sy1 or Sy2)src.classcharCl[CL-] Optical class (Compact/Loose)src.classcharRefReferences for optical and morphological type, in refs.dat filemeta.refcharNote[*] * indicates an individual note (2)meta.notecharSimbadNameSimbad column added by the CDSmeta.idchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/MNRAS/405/2505/table3Properties of the 52 high-redshift sources in the control samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject namemeta.id;meta.maincharn_Name[a-e] Group of intrinsic slope (1)meta.notecharDLLuminosity distanceGpcpos.distance;pos.heliocentricfloatAbol? AGN contribution to bolometric flux%phys.luminosity;arith.ratiofloatnullablel_Abol1Limit flag on Abolmeta.code.errorcharAbol11-{sigma} confidence range for Abol (lower limit)%phys.luminosity;arith.ratiofloatAbol2? 1-{sigma} confidence range for Abol (upper limit)%phys.luminosity;arith.ratiofloatnullablel_tauLimit flag on taumeta.code.errorchartau? AGN optical depth {tau}phys.absorption.opticalDepthfloatnullableFobsObserved flux, at IRAS 60um or Spitzer-MIPS 70ummJyphot.flux.density;em.IR.30-60umfloate_Fobsrms uncertainty on FobsmJystat.errorfloatLirIR luminosity [log scale] (2)log(solLum)phys.luminosity;em.IRfloate_Lirrms uncertainty on logLirlog(solLum)stat.errorfloatl_Lir2Limit flag on logir2meta.code.errorcharLir2IR luminosity [log scale] (3)log(solLum)phys.luminosity;em.IRfloate_Lir2? rms uncertainty on logLirlog(solLum)stat.errorfloatnullabler_Lir2References for logLir2, in refs.dat filemeta.ref;pos.frameintPIDSpitzer programme number, in pid.dat filemeta.id;obsintSimbadNameSimbad column added by the CDSmeta.idchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainzRedshiftsrc.redshiftfloatJ/MNRAS/405/2505/pidSpitzer programme numbersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPIDPID numbermeta.idintprimaryTitleTitle of the observationmeta.notecharJ/MNRAS/405/2505/refsReferencesRefReference numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notechar