J/ApJ/793/38ivo://CDS.VizieR/J/ApJ/793/38doi:10.26093/cds/vizier.17930038CDSArcavi I.Gal-Yam A.Sullivan M.Pan Y.-C.Cenko S.B.Horesh A.,Ofek E.O.De Cia A.Yan L.Yang C.-W.Howell D.A.Tal D.,Kulkarni S.R.Tendulkar S.P.Tang S.Xu D.Sternberg A.Cohen J.G.,Bloom J.S.Nugent P.E.Kasliwal M.M.Perley D.A.Quimby R.M.,Miller A.A.Theissen C.A.Laher R.R.2017-06-19T07:57:01Z2017-05-03T15:01:00ZCDS support team

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

cds-question@unistra.frsupernovaegalaxiesvisible-astronomyphotometryWe present the results of a Palomar Transient Factory (PTF) archival search for blue transients that lie in the magnitude range between "normal" core-collapse and superluminous supernovae (i.e., with -21<=M_R(peak)_<=-19). Of the six events found after excluding all interacting Type IIn and Ia-CSM supernovae, three (PTF09ge, 09axc, and 09djl) are coincident with the centers of their hosts, one (10iam) is offset from the center, and a precise offset cannot be determined for two (10nuj and 11glr). All the central events have similar rise times to the He-rich tidal disruption candidate PS1-10jh, and the event with the best-sampled light curve also has similar colors and power-law decay. Spectroscopically, PTF09ge is He-rich, while PTF09axc and 09djl display broad hydrogen features around peak magnitude. All three central events are in low star formation hosts, two of which are E+A galaxies. Our spectrum of the host of PS1-10jh displays similar properties. PTF10iam, the one offset event, is different photometrically and spectroscopically from the central events, and its host displays a higher star formation rate. Finding no obvious evidence for ongoing galactic nuclei activity or recent star formation, we conclude that the three central transients likely arise from the tidal disruption of a star by a supermassive black hole. We compare the spectra of these events to tidal disruption candidates from the literature and find that all of these objects can be unified on a continuous scale of spectral properties. The accumulated evidence of this expanded sample strongly supports a tidal disruption origin for this class of nuclear transients.2014ApJ...793...38Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/793/38CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/313 : Palomar Transient Factory (PTF) photometric catalog 1.0 (Ofek+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/793/38https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/793/38http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/793/38https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/793/38https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/793/38http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/793/38GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/793/38/sources (List of studied sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/793/38/sources?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/793/38/sources?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/793/38/sources?GETtext/xml+votable180.050000true223.304416722.24227780.0055555555555555566/8970 9322 9615 10149 11314 11347https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/793/38?format=asciiOpticaldefaultJ/ApJ/793/38/table2Photometric observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPTFObject identifier (PTF YYaaa in Simbad)meta.id;meta.maincharTelTelescope identifier (1)meta.id;instr.telcharFilter[gri] Filter used in the observationinstr.setup;obscharJDJulian Date of the observationdtime.epochdoublel_magUpper 3{sigma} non-detection limit flag on magmeta.code.errorcharmagObserved magnitude in Filtermagphot.magfloate_mag? Error in magmagstat.error;phot.magdoublenullableJ/ApJ/793/38/sourcesList of studied sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Simbad rigth ascension (J2000)pos.eq.ra;meta.mainDEJ2000Simbad declination (J2000)pos.eq.dec;meta.mainPTFObject identifier (PTF YYaaa in Simbad)meta.id;meta.maincharLCShow the light curvesmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar