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Botticella (Queen's University Belfast), N. Kaiser, P. A. Price, P. H. Rhoads, P. M. Onaka, R. H. Lupton, R. J. Wainscoat, R. Kotak, R. Kudritzki, S. Gezari, S. J. Smartt, S. Mattila, S. Rodney, S. Valenti, T. Dombeck, T. Grav, W. A. Siegmund, W. E. Sweeney, W. M. Wood-Vasey, W. S. Burgett","submitted_at":"2010-01-29T17:50:44Z","abstract_excerpt":"We present photometric and spectroscopic observations of a luminous type IIP Supernova 2009kf discovered by the Pan-STARRS 1 (PS1) survey and detected also by GALEX. The SN shows a plateau in its optical and bolometric light curves, lasting approximately 70 days in the rest frame, with absolute magnitude of M_V = -18.4 mag. The P-Cygni profiles of hydrogen indicate expansion velocities of 9000km/s at 61 days after discovery which is extremely high for a type IIP SN. SN 2009kf is also remarkably bright in the near-ultraviolet (NUV) and shows a slow evolution 10-20 days after optical discovery. 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