J/AJ/159/103ivo://CDS.VizieR/J/AJ/159/103doi:10.26093/cds/vizier.51590103CDSKado-Fong E.Greene J.E.Greco J.P.Beaton R.Goulding A.D.,Johnson S.D.Komiyama Y.2022-11-14T07:39:28Z2020-05-14T11:57:31ZCDS support team

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

cds-question@unistra.frgalaxiescatalogsredshiftedvisible-astronomyspectroscopyinfrared-photometrybroad-band-photometryLike massive galaxies, dwarf galaxies are expected to undergo major mergers with other dwarfs. However, the end state of these mergers and the role that merging plays in regulating dwarf star formation are uncertain. Using imaging from the Hyper Suprime-Cam Subaru Strategic Program, we construct a sample of dwarf-dwarf mergers and examine the star formation and host properties of the merging systems. These galaxies are selected via an automated detection algorithm from a sample of 6875 spectroscopically selected isolated dwarf galaxies at z<0.12 and log(M_*_/M_{sun}_)<9.6 from the Galaxy and Mass Assembly and Sloan Digital Sky Survey spectroscopic campaigns. We find a total tidal feature detection fraction of 3.29% (6.1% when considering only galaxies at z<0.05). The tidal feature detection fraction rises strongly as a function of star formation activity; 15%-20% of galaxies with extremely high H{alpha} equivalent width (EW_H{alpha}_>250{AA}) show signs of tidal debris. Galaxies that host tidal debris are also systematically bluer than the average galaxy at fixed stellar mass. These findings extend the observed dwarf-dwarf merger sequence with a significant sample of dwarf galaxies, indicating that star formation triggered in mergers between dwarf galaxies continues after coalescence.2020AJ....159..103Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/159/103CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)J/A+A/373/24 : Blue compact galaxies from SBS (Pustilnik+ 2001)J/AJ/126/1183 : Major galaxy mergers at z<~3 (Conselice+, 2003)J/AJ/130/1516 : MCG pairs and triples of galaxies (De Propris+, 2005)J/ApJ/685/235 : Host and companion galaxies in the SDSS (Patton+, 2008)J/ApJ/692/511 : Mergers of luminous early-type galaxies (Wen+, 2009)J/MNRAS/413/971 : Galaxy And Mass Assembly (GAMA) DR1 (Driver+, 2011)J/ApJ/765/28 : CFHTLS galaxies with faint tidal features (Atkinson+, 2013)J/AJ/148/137 : Merging galaxies in COSMOS to z~1 (Lackner+, 2014)J/MNRAS/452/2087 : Galaxy And Mass Assembly (GAMA): DR2 (Liske+, 2015)J/ApJ/824/86 : The BOSS emission-line lens survey. III. (Shu+, 2016)J/ApJ/829/78 : Dust properties major-merger galaxy pairs (Domingue+, 2016)J/MNRAS/464/3882 : Mergers and galaxy-galaxy interactions (Weston+, 2017)J/ApJ/855/49 : ALMA astrochemical obs. of merger NGC 3256 (Harada+, 2018)J/ApJ/857/104 : Low surface brightness galaxies from HSC-SSP (Greco+, 2018)J/ApJ/857/144 : Tidal features RESOLVE survey & DECaLS images (Hood+,2018)J/ApJS/237/36 : Merging dwarf galaxies in the local universe (Paudel+, 2018)J/A+A/631/A87 : Close pairs of galaxies in MUSE Deep Fields (Ventou+, 2019)http://skyserver.sdss.org/dr14 : SDSS DR14 home pagehttp://www.gama-survey.org/ : Galaxy And Mass Assembly (GAMA) home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/159/103https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/159/103http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/159/103https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/159/103https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/159/103http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/159/103GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/159/103/table2 (The Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) dwarf-dwarf merger catalog (and non-detections))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/159/103/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/159/103/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/159/103/table2?GETtext/xml+votable180.050000true332.767730.951486940.0055555555555555564/256 1622 1642 1685 5/1028-1029 2048 2455 2460 2471 2475-2476 2480 2496 2816 4501-4502 4522 4693-4694 4697-4698 4710 4713-4714 4757-4758 4761 4764 5461-5463 5468-5469 6399 6479 6483-6484 6486-6487 6492 6501-6503 6505 6508 6512 6543 6563 6565-6567 6572 6576 6739 6748 6806 6809 6811 6814 6822-6823 6825-6828 6830-6831 6836 6912 11263 6/4121-4122 4128-4129 4160 8200 8202 9641-9644 9646 9813-9815 9817 9819 9829-9831 9833-9837 9839 9848-9850 9877-9879 9881-9883 9893-9895 9897-9899 9908-9910 9912-9914 9924 9928-9930 9988 9990 9992 10582-10583 10587-10588 10590-10591 10599 10601 10603-10606 10610-10614 10616-10617 10645 10688-10689 10691-10694 11268 11424 11426 17405-17406 17662-17663 17725-17727 17762 17805 17809-17812 17816-17817 17997-17999 18001-18003 18012-18014 18020-18021 18032-18034 18081-18083 18086-18087 18092-18094 18176-18178 18685-18687 18749-18751 18763 18765-18767 18769-18771 18780-18782 18785-18787 18796-18798 18800-18802 18829 18831 18833-18837 18839 18844-18846 18849-18851 18860-18862 18864-18866 18880-18882 19021-19023 19025-19027 19036-19038 19041 19043 19200-19202 19204 19457-19458 21839 21841-21843 21861 21881 21884 25589-25591 25593-25595 25909 25911 25913-25915 25925-25927 25929-25931 25940 25942-25943 25972 25976-25978 25989 25991 25993-25997 25999-26002 26028-26029 26031 26036-26037 26040 26052-26054 26056-26057 26166-26167 26171 26195 26216-26217 26219 26222 26247 26249-26251 26256 26258-26259 26296-26298 26312 26949-26951 26953 26977 26980-26981 26983 26996 26998 27000 27197-27198 27213 27215 27218-27219 27228 27230 27233-27235 27241-27243 27248-27250 27254 27260 27262-27263 27277-27279 27283 27285-27287 27297-27299 27316 27318-27319 27328-27330 27332-27334 27336-27338 27348 27368 27370-27371 27652 27654 27656 27658 31400 31402-31403 40959 45046 45049-45051https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/159/103?format=asciiOpticalInfrareddefaultJ/AJ/159/103/table2The Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) dwarf-dwarf merger catalog (and non-detections)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[466/4584290] HSC catalog spectroscopic IDmeta.id;meta.mainintSDSSDRSDSS release: "SDSS-DR12-" (Cat. V/147) or "SDSS-DR14-"meta.id;meta.datasetcharobjID? SDSS spectroscopic ObjIDmeta.id.crossnullableGAMA? GAMA-DR2 spectroscopic ID (1)meta.id.crossintnullableONameOther name(s)meta.idcharSep[0.001/1] Difference in position between HSC object and original spectroscopic sourcearcsecpos.angDistancedoubleRAJ2000[0.86/360] Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-2.5/53] Declination (J2000)degpos.eq.dec;meta.mainzsp[0.01/0.13] Spectroscopic redshiftsrc.redshiftfloatlogM*[7/9.6]? Logarithm of stellar masslog(solMass)phys.massfloatnullableg-i[-3/2.9]? SDSS (g-i) color index derived from Petrosian magnitudesmagphot.color;em.opt.B;em.opt.RfloatnullableEWHa[-1364/1961]? H{alpha} equivalent width in Angstroms0.1nmspect.line.eqWidthdoublenullableSimbadNameSimbad column added by the CDSmeta.idcharnullableNEDNED column added by the CDSmeta.ref.urlcharFHa[-14/90763]? H{alpha} flux in 10^-17^erg/s/cm^2^/{AA}1e-19W.m**-2.nm**-1phot.flux;spect.linedoublenullablee_FHa[0/94620]? Error in FHa1e-19W.m**-2.nm**-1stat.errordoublenullableInAuto[True Flase] Automated low surface brightness debris found?meta.codecharInVis[True False] Automated debris visually confirmed as merger debris?meta.codecharNotesAdditional notes on sourcemeta.notecharSloanDisplay the online SDSS-DR14 data for the nearest objectmeta.ref.urlchar