SUPERNOVA 2009kf: AN ULTRAVIOLET BRIGHT TYPE IIP SUPERNOVA DISCOVERED WITH PAN-STARRS 1 AND GALEX

Autoria(s): Botticella, Maria; Trundle, Carrie; Pastorello, Andrea; Rodney, S.; Rest, A.; Gezari, S.; Smartt, Stephen; Narayan, G.; Huber, M.E.; Tonry, J.L.; Young, David; Smith, Kenneth; Bresolin, F.; Valenti, Stefano; Kotak, Rubina; Mattila, Seppo; Kankare, E.; Wood-Vasey, W.M.; Riess, A.; Neill, J.D.; Forster, K.; Martin, D.C.; Stubbs, C.W.; Burgett, W.S.; Chambers, K.C.; Dombeck, T.; Flewelling, H.; Grav, T.; Heasley, J.N.; Hodapp, K.W.; Kaiser, N.; Kudritzki, R.; Luppino, G.; Lupton, R.H.; Magnier, E.A.; Monet, D.G.; Morgan, J.S.; Onaka, P.M.; Price, P.A.; Rhoads, P.H.; Siegmund, W.A.; Sweeney, W.E.; Wainscoat, R.J.; Waters, C.; Waterson, M.F.; Wynn-Williams, C.G.
Data(s)

2010
Resumo

We present photometric and spectroscopic observations of a luminous Type IIP Supernova (SN) 2009kf discovered by the Pan-STARRS 1 (PS1) survey and also detected by the Galaxy Evolution Explorer. The SN shows a plateau in its optical and bolometric light curves, lasting approximately 70 days in the rest frame, with an absolute magnitude of M-V = - 18.4 mag. The P-Cygni profiles of hydrogen indicate expansion velocities of 9000 km s(-1) 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. The NUV and optical luminosity at these epochs can be modeled with a blackbody with a hot effective temperature (T similar to 16,000 K) and a large radius (R similar to 1 x 10(15) cm). The bright bolometric and NUV luminosity, the light curve peak and plateau duration, the high velocities, and temperatures suggest that 2009kf is a Type IIP SN powered by a larger than normal explosion energy. Recently discovered high-z SNe (0.7
Identificador

http://pure.qub.ac.uk/portal/en/publications/supernova-2009kf-an-ultraviolet-bright-type-iip-supernova-discovered-with-panstarrs-1-and-galex(29df55e2-ebd8-4581-9fa6-ffb123113567).html

http://dx.doi.org/10.1088/2041-8205/717/1/L52
Idioma(s)

eng
Direitos

info:eu-repo/semantics/restrictedAccess
Fonte

Botticella , M , Trundle , C , Pastorello , A , Rodney , S , Rest , A , Gezari , S , Smartt , S , Narayan , G , Huber , M E , Tonry , J L , Young , D , Smith , K , Bresolin , F , Valenti , S , Kotak , R , Mattila , S , Kankare , E , Wood-Vasey , W M , Riess , A , Neill , J D , Forster , K , Martin , D C , Stubbs , C W , Burgett , W S , Chambers , K C , Dombeck , T , Flewelling , H , Grav , T , Heasley , J N , Hodapp , K W , Kaiser , N , Kudritzki , R , Luppino , G , Lupton , R H , Magnier , E A , Monet , D G , Morgan , J S , Onaka , P M , Price , P A , Rhoads , P H , Siegmund , W A , Sweeney , W E , Wainscoat , R J , Waters , C , Waterson , M F & Wynn-Williams , C G 2010 , ' SUPERNOVA 2009kf: AN ULTRAVIOLET BRIGHT TYPE IIP SUPERNOVA DISCOVERED WITH PAN-STARRS 1 AND GALEX ' Astrophysical Journal Letters , vol 717 , pp. L52-L56 . DOI: 10.1088/2041-8205/717/1/L52
Tipo

article
Acesso ao item digital