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

Justyn Robert Maund; M. Fraser; S. Smartt; M.T. Botticella; C. Barbarino; M. Childress; A. Gal-Yam; C. Inserra; G. Pignata; D. Reichart; B. Schimdt; Jesper Olof Sollerman

doi:10.1093/mnrasl/slt017

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

Justyn Robert Maund, M. Fraser, S. Smartt, M.T. Botticella, C. Barbarino, M. Childress, A. Gal-Yam, C. Inserra, G. Pignata, D. Reichart, B. Schimdt, Jesper Olof Sollerman

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31 Citationer (Scopus)

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 M_r' = -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).

Originalsprog	Engelsk
Tidsskrift	Monthly Notices of the Royal Astronomical Society
Vol/bind	431
Udgave nummer	1
Sider (fra-til)	L102-L106
ISSN	0035-8711
DOI	https://doi.org/10.1093/mnrasl/slt017
Status	Udgivet - 1 maj 2013

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10.1093/mnrasl/slt017

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Maund, J. R., Fraser, M., Smartt, S., Botticella, M. T., Barbarino, C., Childress, M., Gal-Yam, A., Inserra, C., Pignata, G., Reichart, D., Schimdt, B., & Sollerman, J. O. (2013). Supernova 2012ec: identification of the progenitor and early monitoring with PESSTO. Monthly Notices of the Royal Astronomical Society, 431(1), L102-L106. https://doi.org/10.1093/mnrasl/slt017

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title = "Supernova 2012ec: identification of the progenitor and early monitoring with PESSTO",

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).",

author = "Maund, {Justyn Robert} and M. Fraser and S. Smartt and M.T. Botticella and C. Barbarino and M. Childress and A. Gal-Yam and C. Inserra and G. Pignata and D. Reichart and B. Schimdt and Sollerman, {Jesper Olof}",

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doi = "10.1093/mnrasl/slt017",

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T1 - Supernova 2012ec

T2 - identification of the progenitor and early monitoring with PESSTO

AU - Maund, Justyn Robert

AU - Fraser, M.

AU - Smartt, S.

AU - Botticella, M.T.

AU - Barbarino, C.

AU - Childress, M.

AU - Gal-Yam, A.

AU - Inserra, C.

AU - Pignata, G.

AU - Reichart, D.

AU - Schimdt, B.

AU - Sollerman, Jesper Olof

PY - 2013/5/1

Y1 - 2013/5/1

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).

U2 - 10.1093/mnrasl/slt017

DO - 10.1093/mnrasl/slt017

M3 - Journal article

SN - 0035-8711

VL - 431

SP - L102-L106

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

IS - 1

ER -

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

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