J/ApJ/763/L27ivo://CDS.VizieR/J/ApJ/763/L27doi:10.26093/cds/vizier.17639027CDSPrieto J.L.Brimacombe J.Drake A.J.Howerton S.2017-07-10T06:22:06Z2014-11-05T09:55:27ZCDS support team

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

cds-question@unistra.frsupernovaeinfrared-photometryvisible-astronomyphotometryRecent observations by Mauerhan et al. (2013MNRAS.430.1801M) have shown the unprecedented transition of the previously identified luminous blue variable (LBV) and supernova (SN) impostor SN 2009ip to a real Type IIn SN explosion. We present ~100 optical R- and I-band photometric measurements of SN 2009ip obtained between UT 2012 September 23.6 and October 9.6, using 0.3-0.4m aperture telescopes from the Coral Towers Observatory in Cairns, Australia. The light curves show well-defined phases, including very rapid brightening early on (0.5mag in 6hr observed during the night of September 24), a transition to a much slower rise between September 25 and September 28, and a plateau/peak around October 7. These changes are coincident with the reported spectroscopic changes that most likely mark the start of a strong interaction between the fast SN ejecta and a dense circumstellar medium formed during the LBV eruptions observed in recent years. In the 16-day observing period, SN 2009ip brightened by 3.7mag from I=17.4mag on September 23.6 (M_I_=~-14.2) to I=13.7mag (M_I_=~-17.9) on October 9.6, radiating ~3x10^49^erg in the optical wavelength range. As of 2012 October 9.6, SN 2009ip is more luminous than most Type IIP SN and comparable to other Type IIn SN.2013ApJ...763L..27Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/763/L27CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/sn : Asiago Supernova Catalogue (Barbon et al., 1999-)J/A+A/555/A10 : Light curves of 5 type IIn supernovae (Taddia+, 2013)J/AJ/144/131 : Photometry and spectroscopy of SN 2010jl (Zhang+, 2012)J/ApJ/756/173 : Phot. of type IIn SNe 2005ip & 2006jd (Stritzinger+, 2012)J/ApJ/729/143 : Photometry of type IIn SN 2008am (Chatzopoulos+, 2011)J/MNRAS/412/1441 : SNe luminosity functions (Li+, 2011)J/AJ/128/1761 : HATNET variability survey (Hartman+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/763/L27https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/763/L27http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/763/L27https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/763/L27https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/763/L27http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/763/L27GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/ApJ/763/L27/table1Light curve of SN 2009iprecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateUT date of observation (2012 month+decimal days)time.epoch;obscharHJDHeliocentic Julian Date; HJD+2456000dtime.epochdoublemag[13.63/17.45] Observed magnitude in Filtmagphot.magfloate_mag[0.01/0.06] Error in magmagstat.error;phot.magfloatFiltFilter used in observation (I or R; in standard RI (Johnson/Kron-Cousins))instr.setup;obschar