J/ApJ/743/154ivo://CDS.VizieR/J/ApJ/743/154doi:10.26093/cds/vizier.17430154CDSCucchiara A.Cenko S.B.Bloom J.S.Melandri A.Morgan A.Kobayashi S.,Smith R.J.Perley D.A.Li W.Hora J.L.da Silva R.L.Prochaska J.X.,Milne P.A.Butler N.R.Cobb B.Worseck G.Mundell C.G.Steele I.A.,Filippenko A.V.Fumagalli M.Klein C.R.Stephens A.Bluck A.Mason R.2017-06-26T11:49:27Z2013-06-27T09:06:32ZCDS support team

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

cds-question@unistra.frgamma-ray-astronomyinfrared-photometryvisible-astronomyphotometrybroad-band-photometrymedium-band-photometryWe present rich, early-time, multiband data sets for two Swift events, GRB 110205A and GRB 110213A. The former shows optical emission since the early stages of the prompt phase, followed by the steep rising in flux up to ~1000s after the burst (t^-{alpha}^ with {alpha}=-6.13+/-0.75). We discuss this feature in the context of the reverse-shock scenario and interpret the following single power-law decay as being forward-shock dominated. Polarization measurements, obtained with the RINGO2 instrument mounted on the Liverpool Telescope, also provide hints on the nature of the emitting ejecta. The latter event, instead, displays a very peculiar optical to near-infrared light curve, with two achromatic peaks. In this case, while the first peak is probably due to the onset of the afterglow, we interpret the second peak to be produced by newly injected material, signifying a late-time activity of the central engine.2011ApJ...743..154Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/743/154CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJS/195/2 : The second Swift BAT GRB catalog (BAT2) (Sakamoto+, 2011)J/AJ/141/36 : GRB 080607 multi-band light curves (Perley+, 2011)J/MNRAS/406/2473 : Photometry of GRB 071025 (Perley+, 2010)J/MNRAS/397/1177 : Swift-XRT observations of GRBs (Evans+, 2009)J/ApJ/690/163 : The first Swift UV-Opt GRB afterglow catalog (Roming+, 2009)J/ApJ/672/449 : GRB 061126 light curves (Perley+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/743/154https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/743/154http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/743/154https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/743/154https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/743/154http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/743/154GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapGamma-rayOpticalInfrareddefaultJ/ApJ/743/154/table1Photometric observations for GRB 110205ArecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTelTelescope (Gemini-N, KAIT, Liverpool, P60, PAIRITEL, Swift-UVOT or Gemini)meta.id;instr.telchart-t0Time since the Swift triggerstime;arith.diffdoubleFiltFilter used (JHK, VI, g'r'i'z', ubv, white or clear) (1)instr.setup;instr.filtercharl_magLimit flag on magmeta.code.errorcharmagObserved magnitude in Filtmagphot.magfloate_mag? The 1{sigma} error in magmagstat.error;phot.magfloatnullableJ/ApJ/743/154/table4Photometric observations for GRB 110213ArecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTelTelescope (Gemini-N, KAIT, Liverpool, P60, PAIRITEL, Swift-UVOT or Gemini)meta.id;instr.telchart-t0Time since the Swift triggerstime;arith.diffdoubleFiltFilter used (JHK, VI, g'r'i'z', ubv, white or clear) (1)instr.setup;instr.filtercharl_magLimit flag on magmeta.code.errorcharmagObserved magnitude in Filtmagphot.magfloate_mag? The 1{sigma} error in magmagstat.error;phot.magfloatnullable