J/A+A/618/A34ivo://CDS.VizieR/J/A+A/618/A34doi:10.26093/cds/vizier.36180034CDSLaurikainen E.Salo H.Laine J.Janz J.2019-03-25T13:42:58Z2019-03-14T09:29:15ZCDS support team

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

cds-question@unistra.frgalaxiescatalogsgalaxy-classification-systemsIt is theoretically predicted that, at low galaxy inclinations, boxy/peanut bar components have a barlens appearance of a round central component embedded in the narrow bar. We investigate barlenses in the Calar Alto Legacy Integral Field Area (CALIFA) survey galaxies, studying their morphologies, stellar populations, and metallicities. We show that, when present, barlenses account for a significant portion of light of photometric bulges, i.e., the excess light on top of the disks, which highlights the importance of bars in accumulating central galaxy mass concentrations in the cosmic timescale. We made multi-component decompositions for a sample of 46 barlens galaxies drawn from the CALIFA survey, where M_{star}_/M_{sun}_=10^9.7^-10^11.4^ and z=0.005-0.03. Unsharp masks of the Sloan Digital Sky Survey (SDSS) r'-band mosaics were used to identify the boxy/peanut or X-shaped features. Barlenses are identified in the images using our simulation snapshots as an additional guide. Our decompositions with GALFIT include bulges, disks, and bars as well as barlenses as a separate component. For 26 of the decomposed galaxies the CALIFA DR2 V500 grating data cubes were used to explore stellar ages and metallicities at the regions of various structure components. We find that 25+/-2% of the 1064 galaxies in the whole CALIFA sample show either X-shaped or barlens features. In the decomposed galaxies with barlenses, on average 13%+/-2% of the total galaxy light belongs to this component, leaving less than 10% for possible separate bulge components. Most importantly, bars and barlenses are found to have similar cumulative stellar age and metallicity distributions. The metallicities in barlenses are on average near solar, but exhibit a large range. In some of the galaxies barlenses and X-shaped features appear simultaneously, in which case the bar origin of the barlens is unambiguous. This is the first time that a combined morphological and stellar population analysis is used to study barlenses. We show that their stars are accumulated in a prolonged time period concurrently with the evolution of the narrow bar.2018A&A...618A..34Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/618/A34CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/573/A59 : Gas kinematics in CALIFA survey (Garcia-Lorenzo+, 2015)J/A+A/576/A135 : CALIFA DR2 (Garcia-Benito+, 2015)J/A+A/581/A103 : CALIFA survey across the Hubble sequence (Gonzalez+, 2015)J/A+A/584/A87 : CALIFA sample SFR calibration (Catalan-Torrecilla+, 2015)J/A+A/585/A47 : CALIFA color/metallicity gradients connectionsJ/A+A/587/A70 : CALIFA face-on spiral galaxies oxygenJ/A+A/593/A114 : CALIFA space density distribution of galaxiesJ/A+A/594/A36 : CALIFA Survey DR3 list of galaxies (Sanchez+, 2016)J/A+A/595/A62 : CALIFA galaxies O/H and N/O slopes (Perez-Montero+, 2016)J/ApJ/826/71 : Growth curves of CALIFA spiral galaxiesJ/MNRAS/462/2715 : Oxygen abundance maps of CALIFA galaxies (Zinchenko+, 2016)J/A+A/597/A48 : Stellar kinematics in CALIFA survey (Falcon-Barroso+, 2017)J/A+A/598/A32 : 2D decomposition of CALIFA galaxies (Mendez-Abreu+, 2017)J/A+A/604/A4 : CALIFA galaxies observational hints (Ruiz-Lara+, 2017)J/ApJ/846/159 : Interferometric CO obs. of 126 CALIFA galaxiesJ/ApJ/848/87 : CALIFA SFRs. II. Bulges, bars + diskshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/618/A34https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/618/A34http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/618/A34https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/618/A34https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/618/A34http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/618/A34GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/618/A34/tableb1 (Barlens (bl) identifications in the CALIFA survey)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/618/A34/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/618/A34/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/618/A34/tableb1?GETtext/xml+votable180.050000true8.9144667-20.12529720.005555555555555556Cone search capability for table J/A+A/618/A34/tablec1 (Galaxies with X-shaped bars in the CALIFA survey, identified from the unsharp mask images.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/618/A34/tablec1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/618/A34/tablec1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/618/A34/tablec1?GETtext/xml+votable180.050000true193.975983363.61183890.0055555555555555566/50 554 556 568 573 738 908 949 975 995 1701 2228-2229 2248 2251 4053 4178 4212 4507 4530 4577 4655 4667 4712 4718-4719 4801 4806 4813 4816 4840 4843 4850 4913 4990 5086 5169 5192 5274 5342 5371 5391 5394 5415 5474 5482 5530 5533 5551 5564 5635 5701 5717 5775 5975 5999 6007 6129 6138 6216 6270 6448 6465 6630 6977 7198-7199 7228 7234 7303 7309 7312 7340 7443 7560 7589 7603 7783 7844 8297 8327 8341 8458 8552 8562 8705 8728 8750 8883 8919 8921 8984 8992 9101 9124 9220 9470 9859 9883 9885 9891 10111 10113 10183 10200 10213 10364 10378-10379 10381 10384 10409 10434-10435 10438 10485 10531 10539 10627-10629 10632 10637 10721 10727 10752 10895 10995 11049 11158 11191 11314 11369 11372 11392 11396 11435 11777 11800 11824 11832 11913 11944 12378 12399 13316 13380 13426 16007 16696 16787-16788 17234 17237-17238 17392 17492 17571 17661 17663 17667 17747 17751 17761 17767 17998 18302 18775 18779 18781 18838 18935 18941 19487 19508 19537 19589 19618 19940 19981 19984 21857 22651 22737 23076 23204 23208 23405 26361-26362 26422 26451 26495 26528 26537 26575 27480 27560 27595 27608 27722-27723 27763 27803 27806 27840 27849 27899 27906 27944 28036 28225 28253 28267 28269 28278-28279 28284 28309 28322 28362 28377 28379 28430 28434 28453 28482 28484-28485 28497 28515 28539 28548 28579 28601 28639 29973 31546 31642-31643 31737 32482 32555 36765 49121 49130https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/618/A34?format=asciiOpticaldefaultJ/A+A/618/A34/tableb1Barlens (bl) identifications in the CALIFA surveyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSampleSample (1)src.samplecharGalaxyGalaxy name, as given in the CALIFA databasemeta.id;meta.maincharzRedshift, as given in the CALIFA databasesrc.redshiftfloatrMAGAbsolute r magnitude, as given in the CALIFA database (2)magphys.magAbsfloatlogMStellar mass, as given in the CALIFA database (3)log(solMass)phys.massfloatKSDKSD flag (4)meta.codecharComComment (5)meta.notecharSimbadSimbad column added by the CDSmeta.ref.urlchar_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/A+A/618/A34/tablec1Galaxies with X-shaped bars in the CALIFA survey, identified from the unsharp mask images.ComComment (5)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSampleSample (1)src.samplecharGalaxyGalaxy name, as given in the CALIFA databasemeta.id;meta.maincharzRedshift, as given in the CALIFA databasesrc.redshiftfloatrMAGAbsolute r magnitude, as given in the CALIFA database (2)magphys.magAbsfloatlogMStellar mass, as given in the CALIFA database (3)log(solMass)phys.massfloatKSDKSD flag (4)meta.codecharSimbadSimbad column added by the CDSmeta.ref.urlchar_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.main