J/A+A/615/A104ivo://CDS.VizieR/J/A+A/615/A104doi:10.26093/cds/vizier.36150104CDSGavazzi G.Consolandi G.Belladitta S.Boselli A.Fossati M.2018-09-26T07:23:57Z2018-08-13T07:45:08ZCDS support team

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

cds-question@unistra.frgalaxiescatalogsradio-galaxiesspectroscopyThe determination of the relative frequency of active galactic nuclei (AGN) versus other spectral classes, for example, HII region-like (HII), transition objects (TRAN), passive (PAS), and retired (RET), in a complete set of galaxies in the local Universe is of primary importance to discriminate the source of ionization in the nuclear region of galaxies (e.g., supermassive black holes vs. young and old stars). Here we aim to provide a spectroscopic characterization of the nuclei of galaxies belonging to the Herschel Reference Survey (HRS), a volume and magnitude limited sample representative of the local Universe, which has become a benchmark for local and high- z studies, for semianalytical models and cosmological simulations. The comparison between the nuclear spectral classification and the one determined on the global galactic scale provides information about how galaxy properties change from the nuclear to the outer regions. Moreover, the extrapolation of the global star formation (SF) properties from the SDSS fiber spectroscopy compared to the one computed by H{alpha} photometry can be useful for testing the method based on aperture correction for determining the global star formation rate for local galaxies. By collecting the existing nuclear spectroscopy available from the literature, complemented with new observations obtained using the Loiano 1.52m telescope, we analyze the 322 nuclear spectra of HRS galaxies; their integrated spectroscopy is available from the literature as well. Using two diagnostic diagrams (the BPT and the WHAN) we provide a nuclear and an integrated spectral classification for the HRS galaxies. The BPT and the WHAN methods for nuclei consistently give a frequency of 53-64% HII, around 21-27% AGNs (including TRAN), and 15-20% of PAS (including RET), whereas for integrated spectra they give 69-84% HII, 4-11% of AGNs and 12-20% PAS. Solely among late-type galaxies (LTGs) do the nuclear percentages become 67-77% HII, 22-27% AGNs (including TRAN), and only 1-7% of PAS. For the integrated spectra these frequencies become: 80-85% HII, 9-11% AGNs and 4-9% PAS. We find that the fraction of HII region-like spectra is strongly anticorrelated with the stellar mass. On the contrary the frequency of AGNs increases significantly with stellar mass, such that at M*>10^10.0^M_{sun}_~66% of the LTGs are AGNs or TRAN. Moreover there is not a significant dependence of the frequency of AGNs as a function of environment: AGNs+TRAN above 10^9.0^M_{sun}_ are consistent with ~30% irrespective of their membership to the Virgo cluster, suggesting that the AGNs population is not sensitive to the environment. Finally, extrapolation of the global SF properties from the nuclear spectroscopy including aperture corrections leads to underestimates with respect to values derived from direct integrated H{alpha} photometry.2018A&A...615A.104Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/615/A104CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/259 : 6dF galaxy survey final redshift release (Jones+, 2009)J/ApJS/112/315 : Spectroscopic parameters of Seyfert nuclei (Ho+ 1997)J/ApJS/126/331 : Spectrophotometry of nearby field galaxies (Jansen+ 2000)J/PASP/122/261 : Herschel Reference Survey Sample, RDS (Boselli+, 2010)J/A+A/543/A161 : Submillimetre obs. of 323 HRS nearby galaxies (Ciesla+, 2012)J/A+A/564/A65 : HRS galaxies cold gas properties (Boselli+, 2014)J/A+A/579/A102 : H{alpha} imaging of Herschel Reference Survey (Boselli+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/615/A104https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/615/A104http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/615/A104https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/615/A104https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/615/A104http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/615/A104GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/615/A104/tablea4 (Derived spectroscopic parameters of a sample of 322 HRS galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/615/A104/tablea4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/615/A104/tablea4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/615/A104/tablea4?GETtext/xml+votable180.050000true154.4152522.8099722220.0055555555555555565/6928 6941 6965 6984-6985 6/4439 5124-5125 5152 5164 5172 5181-5183 5190 5196 5198 5200 5241 5244 5247 5332 5336 5342 5440 5629 5966-5967 5975-5978 5981-5982 5999 6001 6011 6037 6082 6087 6103 8235 8320 8330 8359 10454 10475 10592 10632 10672 10684 10845 10990 11010 11074 11435 11789 25575 25581 25599 25775 25788 25790 25966 25980 25997 26055 26065 26068 26072 26088 26090-26091 26119 26125 26128 26139 26157 26161 26166 26174-26175 26210 26214 26217 26222-26223 26260 26265 26271 26285 26294 26301-26303 26307-26309 26311 26313 26316-26318 26320 26323 26330-26331 26336 26338 26340 26343-26344 26346-26347 26349 26351 26361-26363 26365 26377 26388 26432 26472 26528 26530 26537 26542 27079 27130 27603 27606 27653-27654 27716 27718-27719 27724-27725 27727-27728 27730-27731 27734-27736 27738-27739 27741 27743 27750 27757-27758 27761 27763 27772-27773 27814 27823 27841 27853 27855 27857 27889 27907-27909 27913-27918 27922 27926 27931 27934 27944-27945 27947-27949 27955 28032-28033 28035 28037-28039 28041 28054 28056 28123 28126 28141-28142 28162 28170 28191 28201 28208 28213 28220-28221 28234 28258 28264 28294 28299-28300 28304 28348 28404 28416 28491 28508 28529 28538 28643 28651https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/615/A104?format=asciiRadiodefaultJ/A+A/615/A104/tablea4Derived spectroscopic parameters of a sample of 322 HRS galaxiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHRSHRS name ([BEC2010] HRS NNN in Simbad)meta.id;meta.mainintRefintReference to the integrated spectrum (1)meta.bibcharNoteintNote on integrated spectrum (2)meta.notecharEWHaint? Equivalent width of Halpha in the integrated spectrum corrected for continuum absorption according to GANDALF, positive EW means emission0.1nmspect.line.eqWidth;em.line.Halphafloatnullablef_EWHaint[od] o for not observed, d for not detected (6)meta.codechar[OIII]/Hbint? Line ratio [OIII]/Hbeta in the integrated spectrumphot.flux;em.line.OIII;arith.ratiofloatnullablef_[OIII]/Hbint[od] o for not observed, d for not detected (6)meta.codechar[NII]/Haint? Line ratio [NII]/Halpha in the integrated spectrumspect.line.intensity;arith.ratiofloatnullablef_[NII]/Haint[od] o for not observed, d for not detected (6)meta.codechar[SII]/Haint? Line ratio [SII]/Halpha in the integrated spectrumspect.line.intensity;arith.ratiofloatnullablef_[SII]/Haint[od] o for not observed, d for not detected (6)meta.codecharBPTintBPT classification in the integrated spectrum using the BPT ([NII]/Ha or [SII]/Ha) diagrams (3)meta.code.classcharf_BPTint[od] o for not observed, d for not detected (6)meta.codecharWHANintWHAN classification in the integrated spectrum using the WHAN diagram (3)meta.code.classcharRefnucReference to the nuclear spectroscopy (4)meta.bibcharEWHanuc? EWHalpha in the nuclear spectrum corrected for continuum absorption according to GANDALF or according to Table 1, positive EW means emission (5)0.1nmspect.line.eqWidth;em.line.Halphafloatnullablef_EWHanuc[od] o for not observed, d for not detected (6)meta.codechar[OIII]/Hbnuc? Line ratio [OIII]/Hbeta in the nuclear spectrumphot.flux;em.line.OIII;arith.ratiofloatnullablef_[OIII]/Hbnuc[od] o for not observed, d for not detected (6)meta.codechar[NII]/Hanuc? Line ratio [NII]/Halpha in the nuclear spectrumspect.line.intensity;arith.ratiofloatnullablef_[NII]/Hanuc[od] o for not observed, d for not detected (6)meta.codechar[SII]/Hanuc? Line ratio [SII]/Halpha in the nuclear spectrumspect.line.intensity;arith.ratiofloatnullablef_[SII]/Hanuc[od] o for not observed, d for not detected (6)meta.codecharBPTnucClassification in the nuclear spectrum using the BPT ([NII]/Ha or [SII]/Ha) diagrams (3)meta.code.classcharf_BPTnuc[od] o for not observed, d for not detectedmeta.codecharWHANnucClassification in the nuclear spectrum using the WHAN diagram (3)meta.code.classcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from HRS catalog (Boselli et al., 2010, Cat. J/PASP/122/261 (right ascension part)degpos.eq.ra;meta.main_DEPositions from HRS catalog (Boselli et al., 2010, Cat. J/PASP/122/261 (declination part)degpos.eq.dec;meta.main