J/A+A/609/A9ivo://CDS.VizieR/J/A+A/609/A9doi:10.26093/cds/vizier.36090009CDSLutz D.Shimizu T.Davies R.I.Herrera Camus R.Sturm E.Tacconi L.J.,Veilleux S.2018-01-11T13:31:45Z2017-12-22T19:31:19ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleimillimeter-astronomysubmillimeter-astronomyWe use Herschel data to analyze the size of the far-infrared 70micrometer emission for z<0.06 local samples of 277 hosts of Swift-BAT selected AGN, and 515 comparison galaxies that are not detected by BAT. For modest far-infrared luminosities 8.5<log(LFIR)<10.5, we find large scatter of half light radii for both populations, but a typical value ~1kpc for the BAT hosts that is only half that of comparison galaxies of same far-infrared luminosity. The result mostly reflects a more compact distribution of star formation (and hence gas) in the AGN hosts, but compact AGN heated dust may contribute in some extremely AGN-dominated systems. Our findings are in support of an AGN-host coevolution where accretion onto the central black hole and star formation are fed from the same gas reservoir, with more efficient black hole feeding if that reservoir is more concentrated. The significant scatter in the far-infrared sizes emphasizes that we are mostly probing spatial scales much larger than those of actual accretion, and that rapid accretion variations can smear the distinction between the AGN and comparison categories. Large samples are hence needed to detect structural differences that favour feeding of the black hole. No size difference AGN host vs. comparison galaxies is observed at higher far-infrared luminosities log(LFIR)>10.5 possibly because these are typically reached in more compact regions.2018A&A...609A...9Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/609/A9CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/609/A9https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/609/A9http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/609/A9https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/609/A9https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/609/A9http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/609/A9GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/609/A9/tablea1 (BAT and reference samples)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/609/A9/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/609/A9/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/609/A9/tablea1?GETtext/xml+votable180.050000true0.41123.48250.0055555555555555565/6965 6/134 226 286 538 614 627 629 700 745 888 909 941 953 1008 1121 1263 1276 1405 1521 1566 1677 1701-1702 1841 1865 1918 2155 2216 2251 2309 2320 2363 2390 2409 2433 2518 2564 2680 2764 3223 3309 3446 3506 3762 3934 4215 4439 4447 4469 4488 4504 4535 4540 4558 4654 4681 4719 4731 4825 4834 4839 4993 5096 5116 5124-5125 5130 5146 5149 5181-5183 5190 5196 5200 5241 5244 5332 5342 5440 5469 5492 5514 5523 5629 5715 5751 5762 5799 5865 5900 5966-5967 5975-5976 5978 5982 5999 6011 6037 6042 6087 6104 6212 6253 6265 6347-6348 6376 6411 6483 6561 6637 6752 6781 6977 7132 7157 7184 7241 7246 7277 7330 7386 7424 7552 7606 7628 7642 7728 7743 7763 7869 7921 8029 8064 8085 8106 8111 8196 8216 8235 8266 8299 8320 8330 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22708 22721 22792 22890 22912 22975 23010 23081 23171 23178 23204 23224 23237 23278 23323 23332 23339 23921 24120 24144 24232 24293 24381 24584 24631 24699 24748 24842 24855 24957 24976 25035 25083 25273 25403 25462 25572 25585 25599 25610 25619 25735 25742 25773 25775 25788 25790 25888 25890 25907 25946 25980 25997 26028 26055 26071-26072 26077 26090-26091 26106 26119 26125 26128 26142 26157 26161 26166 26172 26175 26198 26210 26214 26222-26223 26264-26265 26271 26294 26301-26303 26307 26309 26311 26313 26317 26320 26323-26324 26336 26338 26340 26343-26344 26346 26349 26351 26365 26375 26377 26388 26393 26432 26472 26515 26528 26537 26547 26563 26584 26811 26932 26971 27002 27030 27117 27130-27131 27143 27340 27433 27477 27514 27537 27603 27606 27653-27654 27668 27677 27699 27712 27718 27721-27722 27724 27727-27728 27731 27735-27736 27738 27750 27757-27758 27760 27763 27765-27767 27770 27773 27814-27815 27823 27841 27849 27857 27906-27907 27909 27913-27914 27917-27918 27926 27931 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43107 43147 43233 43262 43298 43520 43546 43564 43634 43677 43748 43806 43825 43876-43877 43881 43925 43983 43994 44448 44507 44551 44626 44660 44698 44892 45220 45222 45735 45779 45883 45914 46077 46079 46296 46399 46544 46615 46811 46831 46882 46987 47029 47064 47120 47154 47162 47169 47235 47245 47308 47543 47854 48321 48665 48798 49001 49042https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/609/A9?format=asciiRadiodefaultJ/A+A/609/A9/tablea1BAT and reference samplesSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource namemeta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainSampleMember of BAT or reference (Ref) samplemeta.code.membercharScaleAdopted scale in kpc per arcseckpc/arcsecinstr.scalefloatl_Re70Limit Flag for Re70meta.code.errorcharRe70Half light radius at 70umkpcphys.size.radiusfloate_Re70? Error of Re70 (only statistical)kpcstat.errorfloatnullableBand[70/100] Band used to derive Re70 (1)instr.bandpassintlogLFIRlog10 of FIR 40-120micrometer luminositylog(solLum)phys.luminosity;em.IRfloatlogLBAT? log10 of BAT 14-195keV luminositylog(1e-07W)phys.luminosity;em.X-rayfloatnullableNEDNED column added by the CDSmeta.ref.urlchar