Comparison of progenitor mass estimates for the Type IIP SN 2012A

L. Tomasella, E. Cappellaro, M. Fraser, M. L. Pumo, A. Pastorello, G. Pignata, S. Benetti, F. Bufano, M. Dennefeld, A. Harutyunyan, T. Iijima, A. Jerkstrand, E. Kankare, R. Kotak, L. Magill, V. Nascimbeni, P. Ochner, A. Siviero, S. Smartt, J. SollermanV. Stanishev, F. Taddia, S. Taubenberger, M. Turatto, S. Valenti, D. E. Wright, L. Zampieri

Resultado de la investigación: Article

62 Citas (Scopus)

Resumen

We present the one-year long observing campaign of SN 2012A which exploded in the nearby (9.8 Mpc) irregular galaxy NGC 3239. The photometric evolution is that of a normal Type IIP supernova, but the plateau is shorter and the luminosity not as constant as in other supernovae of this type. The absolute maximum magnitude, with MB = -16.23 ± 0.16 mag, is close to the average for SN IIP. Thanks also to the strong UV flux in the early phase, SN 2012A reached a peak luminosity of about 2 × 1042 erg s-1, which is brighter than those of other SNe with a similar 56Ni mass. The latter was estimated from the luminosity in the exponential tail of the light curve and found to be M(56Ni) = 0.011 ± 0.004M⊙, whichis intermediate between standard and faint SN IIP. The spectral evolution of SN 2012A is also typical of SN IIP, from the early spectra dominated by a blue continuum and very broad (~104 km s-1) Balmer lines, to the late-photospheric spectra characterized by prominent P-Cygni features of metal lines (Fe II, ScII, BaII, Ti II, CaII, NaI D). The photospheric velocity is moderately low, ~3 × 103 km s-1 at 50 d, for the low optical depth metal lines. The nebular spectrum obtained 394 d after the shock breakout shows the typical features of SNe IIP and the strength of the [O I] doublet suggests a progenitor of intermediate mass, similar to SN 2004et (~15M⊙). A candidate progenitor for SN 2012A has been identified in deep, pre-explosion K'-band Gemini North Near-InfraRed Imager and Spectrometerimages, and found to be consistent with a star with a bolometric magnitude -7.08 ± 0.36 (log L/L⊙ = 4.73 ± 0.14 dex). The magnitude of the recovered progenitor in archival images points towards a moderate-mass 10.5+4.5-2 M⊙ star as the precursor of SN 2012A. The explosion parameters and progenitor mass were also estimated by means of a hydrodynamical model, fitting the bolometric light curve, the velocity and the temperature evolutio. We found a best fit for a kinetic energy of 0.48 foe, an initial radius of 1.8 × 1013 cmand ejecta mass of 12.5M⊙. Even including the mass for the compact remnant, this appears fully consistent with the direct measurements given above.

Idioma originalEnglish
Páginas (desde-hasta)1636-1657
Número de páginas22
PublicaciónMonthly Notices of the Royal Astronomical Society
Volumen434
N.º2
DOI
EstadoPublished - 1 sep 2013

Huella dactilar

estimates
luminosity
light curve
supernovae
explosions
explosion
irregular galaxies
M stars
metal
ejecta
extremely high frequencies
metals
erg
optical thickness
optical depth
kinetic energy
comparison
plateaus
near infrared
shock

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Citar esto

Tomasella, L., Cappellaro, E., Fraser, M., Pumo, M. L., Pastorello, A., Pignata, G., ... Zampieri, L. (2013). Comparison of progenitor mass estimates for the Type IIP SN 2012A. Monthly Notices of the Royal Astronomical Society, 434(2), 1636-1657. https://doi.org/10.1093/mnras/stt1130
Tomasella, L. ; Cappellaro, E. ; Fraser, M. ; Pumo, M. L. ; Pastorello, A. ; Pignata, G. ; Benetti, S. ; Bufano, F. ; Dennefeld, M. ; Harutyunyan, A. ; Iijima, T. ; Jerkstrand, A. ; Kankare, E. ; Kotak, R. ; Magill, L. ; Nascimbeni, V. ; Ochner, P. ; Siviero, A. ; Smartt, S. ; Sollerman, J. ; Stanishev, V. ; Taddia, F. ; Taubenberger, S. ; Turatto, M. ; Valenti, S. ; Wright, D. E. ; Zampieri, L. / Comparison of progenitor mass estimates for the Type IIP SN 2012A. En: Monthly Notices of the Royal Astronomical Society. 2013 ; Vol. 434, N.º 2. pp. 1636-1657.
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title = "Comparison of progenitor mass estimates for the Type IIP SN 2012A",
abstract = "We present the one-year long observing campaign of SN 2012A which exploded in the nearby (9.8 Mpc) irregular galaxy NGC 3239. The photometric evolution is that of a normal Type IIP supernova, but the plateau is shorter and the luminosity not as constant as in other supernovae of this type. The absolute maximum magnitude, with MB = -16.23 ± 0.16 mag, is close to the average for SN IIP. Thanks also to the strong UV flux in the early phase, SN 2012A reached a peak luminosity of about 2 × 1042 erg s-1, which is brighter than those of other SNe with a similar 56Ni mass. The latter was estimated from the luminosity in the exponential tail of the light curve and found to be M(56Ni) = 0.011 ± 0.004M⊙, whichis intermediate between standard and faint SN IIP. The spectral evolution of SN 2012A is also typical of SN IIP, from the early spectra dominated by a blue continuum and very broad (~104 km s-1) Balmer lines, to the late-photospheric spectra characterized by prominent P-Cygni features of metal lines (Fe II, ScII, BaII, Ti II, CaII, NaI D). The photospheric velocity is moderately low, ~3 × 103 km s-1 at 50 d, for the low optical depth metal lines. The nebular spectrum obtained 394 d after the shock breakout shows the typical features of SNe IIP and the strength of the [O I] doublet suggests a progenitor of intermediate mass, similar to SN 2004et (~15M⊙). A candidate progenitor for SN 2012A has been identified in deep, pre-explosion K'-band Gemini North Near-InfraRed Imager and Spectrometerimages, and found to be consistent with a star with a bolometric magnitude -7.08 ± 0.36 (log L/L⊙ = 4.73 ± 0.14 dex). The magnitude of the recovered progenitor in archival images points towards a moderate-mass 10.5+4.5-2 M⊙ star as the precursor of SN 2012A. The explosion parameters and progenitor mass were also estimated by means of a hydrodynamical model, fitting the bolometric light curve, the velocity and the temperature evolutio. We found a best fit for a kinetic energy of 0.48 foe, an initial radius of 1.8 × 1013 cmand ejecta mass of 12.5M⊙. Even including the mass for the compact remnant, this appears fully consistent with the direct measurements given above.",
keywords = "General - supernovae: individual, Individual, NGC 3239, SN 2012A - galaxies, Supernovae",
author = "L. Tomasella and E. Cappellaro and M. Fraser and Pumo, {M. L.} and A. Pastorello and G. Pignata and S. Benetti and F. Bufano and M. Dennefeld and A. Harutyunyan and T. Iijima and A. Jerkstrand and E. Kankare and R. Kotak and L. Magill and V. Nascimbeni and P. Ochner and A. Siviero and S. Smartt and J. Sollerman and V. Stanishev and F. Taddia and S. Taubenberger and M. Turatto and S. Valenti and Wright, {D. E.} and L. Zampieri",
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Tomasella, L, Cappellaro, E, Fraser, M, Pumo, ML, Pastorello, A, Pignata, G, Benetti, S, Bufano, F, Dennefeld, M, Harutyunyan, A, Iijima, T, Jerkstrand, A, Kankare, E, Kotak, R, Magill, L, Nascimbeni, V, Ochner, P, Siviero, A, Smartt, S, Sollerman, J, Stanishev, V, Taddia, F, Taubenberger, S, Turatto, M, Valenti, S, Wright, DE & Zampieri, L 2013, 'Comparison of progenitor mass estimates for the Type IIP SN 2012A', Monthly Notices of the Royal Astronomical Society, vol. 434, n.º 2, pp. 1636-1657. https://doi.org/10.1093/mnras/stt1130

Comparison of progenitor mass estimates for the Type IIP SN 2012A. / Tomasella, L.; Cappellaro, E.; Fraser, M.; Pumo, M. L.; Pastorello, A.; Pignata, G.; Benetti, S.; Bufano, F.; Dennefeld, M.; Harutyunyan, A.; Iijima, T.; Jerkstrand, A.; Kankare, E.; Kotak, R.; Magill, L.; Nascimbeni, V.; Ochner, P.; Siviero, A.; Smartt, S.; Sollerman, J.; Stanishev, V.; Taddia, F.; Taubenberger, S.; Turatto, M.; Valenti, S.; Wright, D. E.; Zampieri, L.

En: Monthly Notices of the Royal Astronomical Society, Vol. 434, N.º 2, 01.09.2013, p. 1636-1657.

Resultado de la investigación: Article

TY - JOUR

T1 - Comparison of progenitor mass estimates for the Type IIP SN 2012A

AU - Tomasella, L.

AU - Cappellaro, E.

AU - Fraser, M.

AU - Pumo, M. L.

AU - Pastorello, A.

AU - Pignata, G.

AU - Benetti, S.

AU - Bufano, F.

AU - Dennefeld, M.

AU - Harutyunyan, A.

AU - Iijima, T.

AU - Jerkstrand, A.

AU - Kankare, E.

AU - Kotak, R.

AU - Magill, L.

AU - Nascimbeni, V.

AU - Ochner, P.

AU - Siviero, A.

AU - Smartt, S.

AU - Sollerman, J.

AU - Stanishev, V.

AU - Taddia, F.

AU - Taubenberger, S.

AU - Turatto, M.

AU - Valenti, S.

AU - Wright, D. E.

AU - Zampieri, L.

PY - 2013/9/1

Y1 - 2013/9/1

N2 - We present the one-year long observing campaign of SN 2012A which exploded in the nearby (9.8 Mpc) irregular galaxy NGC 3239. The photometric evolution is that of a normal Type IIP supernova, but the plateau is shorter and the luminosity not as constant as in other supernovae of this type. The absolute maximum magnitude, with MB = -16.23 ± 0.16 mag, is close to the average for SN IIP. Thanks also to the strong UV flux in the early phase, SN 2012A reached a peak luminosity of about 2 × 1042 erg s-1, which is brighter than those of other SNe with a similar 56Ni mass. The latter was estimated from the luminosity in the exponential tail of the light curve and found to be M(56Ni) = 0.011 ± 0.004M⊙, whichis intermediate between standard and faint SN IIP. The spectral evolution of SN 2012A is also typical of SN IIP, from the early spectra dominated by a blue continuum and very broad (~104 km s-1) Balmer lines, to the late-photospheric spectra characterized by prominent P-Cygni features of metal lines (Fe II, ScII, BaII, Ti II, CaII, NaI D). The photospheric velocity is moderately low, ~3 × 103 km s-1 at 50 d, for the low optical depth metal lines. The nebular spectrum obtained 394 d after the shock breakout shows the typical features of SNe IIP and the strength of the [O I] doublet suggests a progenitor of intermediate mass, similar to SN 2004et (~15M⊙). A candidate progenitor for SN 2012A has been identified in deep, pre-explosion K'-band Gemini North Near-InfraRed Imager and Spectrometerimages, and found to be consistent with a star with a bolometric magnitude -7.08 ± 0.36 (log L/L⊙ = 4.73 ± 0.14 dex). The magnitude of the recovered progenitor in archival images points towards a moderate-mass 10.5+4.5-2 M⊙ star as the precursor of SN 2012A. The explosion parameters and progenitor mass were also estimated by means of a hydrodynamical model, fitting the bolometric light curve, the velocity and the temperature evolutio. We found a best fit for a kinetic energy of 0.48 foe, an initial radius of 1.8 × 1013 cmand ejecta mass of 12.5M⊙. Even including the mass for the compact remnant, this appears fully consistent with the direct measurements given above.

AB - We present the one-year long observing campaign of SN 2012A which exploded in the nearby (9.8 Mpc) irregular galaxy NGC 3239. The photometric evolution is that of a normal Type IIP supernova, but the plateau is shorter and the luminosity not as constant as in other supernovae of this type. The absolute maximum magnitude, with MB = -16.23 ± 0.16 mag, is close to the average for SN IIP. Thanks also to the strong UV flux in the early phase, SN 2012A reached a peak luminosity of about 2 × 1042 erg s-1, which is brighter than those of other SNe with a similar 56Ni mass. The latter was estimated from the luminosity in the exponential tail of the light curve and found to be M(56Ni) = 0.011 ± 0.004M⊙, whichis intermediate between standard and faint SN IIP. The spectral evolution of SN 2012A is also typical of SN IIP, from the early spectra dominated by a blue continuum and very broad (~104 km s-1) Balmer lines, to the late-photospheric spectra characterized by prominent P-Cygni features of metal lines (Fe II, ScII, BaII, Ti II, CaII, NaI D). The photospheric velocity is moderately low, ~3 × 103 km s-1 at 50 d, for the low optical depth metal lines. The nebular spectrum obtained 394 d after the shock breakout shows the typical features of SNe IIP and the strength of the [O I] doublet suggests a progenitor of intermediate mass, similar to SN 2004et (~15M⊙). A candidate progenitor for SN 2012A has been identified in deep, pre-explosion K'-band Gemini North Near-InfraRed Imager and Spectrometerimages, and found to be consistent with a star with a bolometric magnitude -7.08 ± 0.36 (log L/L⊙ = 4.73 ± 0.14 dex). The magnitude of the recovered progenitor in archival images points towards a moderate-mass 10.5+4.5-2 M⊙ star as the precursor of SN 2012A. The explosion parameters and progenitor mass were also estimated by means of a hydrodynamical model, fitting the bolometric light curve, the velocity and the temperature evolutio. We found a best fit for a kinetic energy of 0.48 foe, an initial radius of 1.8 × 1013 cmand ejecta mass of 12.5M⊙. Even including the mass for the compact remnant, this appears fully consistent with the direct measurements given above.

KW - General - supernovae: individual

KW - Individual

KW - NGC 3239

KW - SN 2012A - galaxies

KW - Supernovae

UR - http://www.scopus.com/inward/record.url?scp=84882971282&partnerID=8YFLogxK

U2 - 10.1093/mnras/stt1130

DO - 10.1093/mnras/stt1130

M3 - Article

AN - SCOPUS:84882971282

VL - 434

SP - 1636

EP - 1657

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 2

ER -