Supernova 2012ec: Identification of the progenitor and early monitoring with PESSTO

J. R. Maund, M. Fraser, S. J. Smartt, M. T. Botticella, C. Barbarino, M. Childress, A. Gal-Yam, C. Inserra, G. Pignata, D. Reichart, B. Schmidt, J. Sollerman, F. Taddia, L. Tomasella, S. Valenti, O. Yaron

Resultado de la investigación: Article

26 Citas (Scopus)

Resumen

We present the identification of the progenitor of the Type IIP SN 2012ec in archival preexplosion Hubble Space Telescope Wide Field Planetary Camera 2 (WFPC2) and Advanced Camera for Surveys Wide Field Channel F814W images. The properties of the progenitor are further constrained by non-detections in pre-explosion WFPC2 F450W and F606W images. We report a series of early photometric and spectroscopic observations of SN 2012ec. The r'-band light curve shows a plateau with Mr' = -17.0. The early spectrum is similar to the Type IIP SN 1999em, with the expansion velocity measured at Ha absorption minimum of -11 700 km s-1 (at 1 d post-discovery). The photometric and spectroscopic evolution of SN 2012ec shows it to be aType IIP SN, discovered only a few days post-explosion (<6 d). We derive a luminosity for the progenitor, in comparison with MARCS model spectral energy distributions, of log L/L⊙ = 5.15 ± 0.19, from which we infer an initial mass rangeof 14-22M⊙. This is the first SN with an identified progenitor to be followed by the Public ESO Spectroscopic Survey of Transient Objects (PESSTO).

Idioma originalEnglish
PublicaciónMonthly Notices of the Royal Astronomical Society: Letters
Volumen431
N.º1
DOI
EstadoPublished - 3 may 2013

Huella dactilar

European Southern Observatory
supernovae
explosion
cameras
explosions
monitoring
plateau
spectral energy distribution
Hubble Space Telescope
light curve
plateaus
luminosity
energy
expansion
public
distribution
comparison

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Citar esto

Maund, J. R., Fraser, M., Smartt, S. J., Botticella, M. T., Barbarino, C., Childress, M., ... Yaron, O. (2013). Supernova 2012ec: Identification of the progenitor and early monitoring with PESSTO. Monthly Notices of the Royal Astronomical Society: Letters, 431(1). https://doi.org/10.1093/mnrasl/slt017
Maund, J. R. ; Fraser, M. ; Smartt, S. J. ; Botticella, M. T. ; Barbarino, C. ; Childress, M. ; Gal-Yam, A. ; Inserra, C. ; Pignata, G. ; Reichart, D. ; Schmidt, B. ; Sollerman, J. ; Taddia, F. ; Tomasella, L. ; Valenti, S. ; Yaron, O. / Supernova 2012ec : Identification of the progenitor and early monitoring with PESSTO. En: Monthly Notices of the Royal Astronomical Society: Letters. 2013 ; Vol. 431, N.º 1.
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abstract = "We present the identification of the progenitor of the Type IIP SN 2012ec in archival preexplosion Hubble Space Telescope Wide Field Planetary Camera 2 (WFPC2) and Advanced Camera for Surveys Wide Field Channel F814W images. The properties of the progenitor are further constrained by non-detections in pre-explosion WFPC2 F450W and F606W images. We report a series of early photometric and spectroscopic observations of SN 2012ec. The r'-band light curve shows a plateau with Mr' = -17.0. The early spectrum is similar to the Type IIP SN 1999em, with the expansion velocity measured at Ha absorption minimum of -11 700 km s-1 (at 1 d post-discovery). The photometric and spectroscopic evolution of SN 2012ec shows it to be aType IIP SN, discovered only a few days post-explosion (<6 d). We derive a luminosity for the progenitor, in comparison with MARCS model spectral energy distributions, of log L/L⊙ = 5.15 ± 0.19, from which we infer an initial mass rangeof 14-22M⊙. This is the first SN with an identified progenitor to be followed by the Public ESO Spectroscopic Survey of Transient Objects (PESSTO).",
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Maund, JR, Fraser, M, Smartt, SJ, Botticella, MT, Barbarino, C, Childress, M, Gal-Yam, A, Inserra, C, Pignata, G, Reichart, D, Schmidt, B, Sollerman, J, Taddia, F, Tomasella, L, Valenti, S & Yaron, O 2013, 'Supernova 2012ec: Identification of the progenitor and early monitoring with PESSTO', Monthly Notices of the Royal Astronomical Society: Letters, vol. 431, n.º 1. https://doi.org/10.1093/mnrasl/slt017

Supernova 2012ec : Identification of the progenitor and early monitoring with PESSTO. / Maund, J. R.; Fraser, M.; Smartt, S. J.; Botticella, M. T.; Barbarino, C.; Childress, M.; Gal-Yam, A.; Inserra, C.; Pignata, G.; Reichart, D.; Schmidt, B.; Sollerman, J.; Taddia, F.; Tomasella, L.; Valenti, S.; Yaron, O.

En: Monthly Notices of the Royal Astronomical Society: Letters, Vol. 431, N.º 1, 03.05.2013.

Resultado de la investigación: Article

TY - JOUR

T1 - Supernova 2012ec

T2 - Identification of the progenitor and early monitoring with PESSTO

AU - Maund, J. R.

AU - Fraser, M.

AU - Smartt, S. J.

AU - Botticella, M. T.

AU - Barbarino, C.

AU - Childress, M.

AU - Gal-Yam, A.

AU - Inserra, C.

AU - Pignata, G.

AU - Reichart, D.

AU - Schmidt, B.

AU - Sollerman, J.

AU - Taddia, F.

AU - Tomasella, L.

AU - Valenti, S.

AU - Yaron, O.

PY - 2013/5/3

Y1 - 2013/5/3

N2 - We present the identification of the progenitor of the Type IIP SN 2012ec in archival preexplosion Hubble Space Telescope Wide Field Planetary Camera 2 (WFPC2) and Advanced Camera for Surveys Wide Field Channel F814W images. The properties of the progenitor are further constrained by non-detections in pre-explosion WFPC2 F450W and F606W images. We report a series of early photometric and spectroscopic observations of SN 2012ec. The r'-band light curve shows a plateau with Mr' = -17.0. The early spectrum is similar to the Type IIP SN 1999em, with the expansion velocity measured at Ha absorption minimum of -11 700 km s-1 (at 1 d post-discovery). The photometric and spectroscopic evolution of SN 2012ec shows it to be aType IIP SN, discovered only a few days post-explosion (<6 d). We derive a luminosity for the progenitor, in comparison with MARCS model spectral energy distributions, of log L/L⊙ = 5.15 ± 0.19, from which we infer an initial mass rangeof 14-22M⊙. This is the first SN with an identified progenitor to be followed by the Public ESO Spectroscopic Survey of Transient Objects (PESSTO).

AB - We present the identification of the progenitor of the Type IIP SN 2012ec in archival preexplosion Hubble Space Telescope Wide Field Planetary Camera 2 (WFPC2) and Advanced Camera for Surveys Wide Field Channel F814W images. The properties of the progenitor are further constrained by non-detections in pre-explosion WFPC2 F450W and F606W images. We report a series of early photometric and spectroscopic observations of SN 2012ec. The r'-band light curve shows a plateau with Mr' = -17.0. The early spectrum is similar to the Type IIP SN 1999em, with the expansion velocity measured at Ha absorption minimum of -11 700 km s-1 (at 1 d post-discovery). The photometric and spectroscopic evolution of SN 2012ec shows it to be aType IIP SN, discovered only a few days post-explosion (<6 d). We derive a luminosity for the progenitor, in comparison with MARCS model spectral energy distributions, of log L/L⊙ = 5.15 ± 0.19, from which we infer an initial mass rangeof 14-22M⊙. This is the first SN with an identified progenitor to be followed by the Public ESO Spectroscopic Survey of Transient Objects (PESSTO).

KW - Galaxies: individual: Ngc 1084

KW - Supernovae: general

KW - Supernovae: individual: 2012ec

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DO - 10.1093/mnrasl/slt017

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JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

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