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Supernova 2009kf : An Ultraviolet Bright Type IIP Supernova Discovered with Pan-STARRS 1 and GALEX
- Botticella, M. T. (author)
- Trundle, C. (author)
- Pastorello, A. (author)
- show more...
- Rodney, S. (author)
- Rest, A. (author)
- Gezari, S. (author)
- Smartt, S. J. (author)
- Narayan, G. (author)
- Huber, M. E. (author)
- Tonry, J. L. (author)
- Young, D. (author)
- Smith, K. (author)
- Bresolin, F. (author)
- Valenti, S. (author)
- Kotak, R. (author)
- Kankare, E. (author)
- Wood-Vasey, W. M. (author)
- Riess, A. (author)
- Neill, J. D. (author)
- Forster, K. (author)
- Martin, D. C. (author)
- Stubbs, C. W. (author)
- Burgett, W. S. (author)
- Chambers, K. C. (author)
- Dombeck, T. (author)
- Flewelling, H. (author)
- Grav, T. (author)
- Heasley, J. N. (author)
- Hodapp, K. W. (author)
- Kaiser, N. (author)
- Kudritzki, R. (author)
- Luppino, G. (author)
- Lupton, R. H. (author)
- Magnier, E. A. (author)
- Monet, D. G. (author)
- Morgan, J. S. (author)
- Onaka, P. M. (author)
- Price, P. A. (author)
- Rhoads, P. H. (author)
- Siegmund, W. A. (author)
- Sweeney, W. E. (author)
- Wainscoat, R. J. (author)
- Waters, C. (author)
- Waterson, M. F. (author)
- Wynn-Williams, C. G. (author)
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- (creator_code:org_t)
- 2010
- 2010
- English.
- In: Astrophysical Journal. - 0004-637X .- 1538-4357. ; 717, s. L52-L56
- Journal article (peer-reviewed)
Abstract
Subject headings
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- 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 ~ 16,000 K) and a large radius (R ~ 1 × 1015 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 < z < 2.3) have been assumed to be IIn SNe, with the bright UV luminosities due to the interaction of SN ejecta with a dense circumstellar medium. UV-bright SNe similar to SN 2009kf could also account for these high-z events, and its absolute magnitude M NUV = -21.5 ± 0.5 mag suggests such SNe could be discovered out to z ~ 2.5 in the PS1 survey.
Keyword
- stars: evolution
- supernovae: general
- supernovae: individual: 2009kf
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
- Botticella, M. T ...
- Trundle, C.
- Pastorello, A.
- Rodney, S.
- Rest, A.
- Gezari, S.
- show more...
- Smartt, S. J.
- 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 ...
- show less...
- Articles in the publication
- Astrophysical Jo ...
- By the university
- Stockholm University
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