SN 2004A: Another Type II-P supernova with a red supergiant progenitor

M. A. Hendry, S. J. Smartt, R. M. Crockett, J. R. Maund, A. Gal-Yam, D. S. Moon, S. B. Cenko, D. W. Fox, R. P. Kudritzki, C. R. Benn, R. Østensen

Research output: Contribution to journalArticle

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Abstract

We present a monitoring study of SN 2004A and probable discovery of a progenitor star in pre-explosion Hubble Space Telescope (HST) images. The photometric and spectroscopic monitoring of SN 2004A show that it was a normal Type II-P which was discovered in NGC 6207 about two weeks after explosion. We compare SN 2004A to the similar Type II-P SN 1999em and estimate an explosion epoch of 2004 January 6. We also calculate three new distances to NGC 6207 of and . The former was calculated using the Standard Candle Method (SCM) for SNe II-P, and the latter two from the brightest supergiants method (BSM). We combine these three distances with existing kinematic distances, to derive a mean value of . Using this distance, we estimate that the ejected nickel mass in the explosion is . The progenitor of SN 2004A is identified in pre-explosion WFPC2 F814W images with a magnitude of , but is below the detection limit of the F606W images. We show that this was likely a red supergiant (RSG) with a mass of . The object is detected at 4.7σ above the background noise. Even if this detection is spurious, the 5σ upper limit would give a robust upper mass limit of for a RSG progenitor. These initial masses are very similar to those of two previously identified RSG progenitors of the Type II-P SNe 2004gd (8 -2+4 M) and 2005cs (9-2 +3 M).

Original languageEnglish (US)
Pages (from-to)1303-1320
Number of pages18
JournalMonthly Notices of the Royal Astronomical Society
Volume369
Issue number3
DOIs
StatePublished - Jul 1 2006

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supernovae
explosions
explosion
background noise
monitoring
estimates
Hubble Space Telescope
nickel
kinematics
time measurement
stars
detection
method

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Hendry, M. A., Smartt, S. J., Crockett, R. M., Maund, J. R., Gal-Yam, A., Moon, D. S., ... Østensen, R. (2006). SN 2004A: Another Type II-P supernova with a red supergiant progenitor. Monthly Notices of the Royal Astronomical Society, 369(3), 1303-1320. https://doi.org/10.1111/j.1365-2966.2006.10374.x
Hendry, M. A. ; Smartt, S. J. ; Crockett, R. M. ; Maund, J. R. ; Gal-Yam, A. ; Moon, D. S. ; Cenko, S. B. ; Fox, D. W. ; Kudritzki, R. P. ; Benn, C. R. ; Østensen, R. / SN 2004A : Another Type II-P supernova with a red supergiant progenitor. In: Monthly Notices of the Royal Astronomical Society. 2006 ; Vol. 369, No. 3. pp. 1303-1320.
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Hendry, MA, Smartt, SJ, Crockett, RM, Maund, JR, Gal-Yam, A, Moon, DS, Cenko, SB, Fox, DW, Kudritzki, RP, Benn, CR & Østensen, R 2006, 'SN 2004A: Another Type II-P supernova with a red supergiant progenitor', Monthly Notices of the Royal Astronomical Society, vol. 369, no. 3, pp. 1303-1320. https://doi.org/10.1111/j.1365-2966.2006.10374.x

SN 2004A : Another Type II-P supernova with a red supergiant progenitor. / Hendry, M. A.; Smartt, S. J.; Crockett, R. M.; Maund, J. R.; Gal-Yam, A.; Moon, D. S.; Cenko, S. B.; Fox, D. W.; Kudritzki, R. P.; Benn, C. R.; Østensen, R.

In: Monthly Notices of the Royal Astronomical Society, Vol. 369, No. 3, 01.07.2006, p. 1303-1320.

Research output: Contribution to journalArticle

TY - JOUR

T1 - SN 2004A

T2 - Another Type II-P supernova with a red supergiant progenitor

AU - Hendry, M. A.

AU - Smartt, S. J.

AU - Crockett, R. M.

AU - Maund, J. R.

AU - Gal-Yam, A.

AU - Moon, D. S.

AU - Cenko, S. B.

AU - Fox, D. W.

AU - Kudritzki, R. P.

AU - Benn, C. R.

AU - Østensen, R.

PY - 2006/7/1

Y1 - 2006/7/1

N2 - We present a monitoring study of SN 2004A and probable discovery of a progenitor star in pre-explosion Hubble Space Telescope (HST) images. The photometric and spectroscopic monitoring of SN 2004A show that it was a normal Type II-P which was discovered in NGC 6207 about two weeks after explosion. We compare SN 2004A to the similar Type II-P SN 1999em and estimate an explosion epoch of 2004 January 6. We also calculate three new distances to NGC 6207 of and . The former was calculated using the Standard Candle Method (SCM) for SNe II-P, and the latter two from the brightest supergiants method (BSM). We combine these three distances with existing kinematic distances, to derive a mean value of . Using this distance, we estimate that the ejected nickel mass in the explosion is . The progenitor of SN 2004A is identified in pre-explosion WFPC2 F814W images with a magnitude of , but is below the detection limit of the F606W images. We show that this was likely a red supergiant (RSG) with a mass of . The object is detected at 4.7σ above the background noise. Even if this detection is spurious, the 5σ upper limit would give a robust upper mass limit of for a RSG progenitor. These initial masses are very similar to those of two previously identified RSG progenitors of the Type II-P SNe 2004gd (8 -2+4 M⊙) and 2005cs (9-2 +3 M⊙).

AB - We present a monitoring study of SN 2004A and probable discovery of a progenitor star in pre-explosion Hubble Space Telescope (HST) images. The photometric and spectroscopic monitoring of SN 2004A show that it was a normal Type II-P which was discovered in NGC 6207 about two weeks after explosion. We compare SN 2004A to the similar Type II-P SN 1999em and estimate an explosion epoch of 2004 January 6. We also calculate three new distances to NGC 6207 of and . The former was calculated using the Standard Candle Method (SCM) for SNe II-P, and the latter two from the brightest supergiants method (BSM). We combine these three distances with existing kinematic distances, to derive a mean value of . Using this distance, we estimate that the ejected nickel mass in the explosion is . The progenitor of SN 2004A is identified in pre-explosion WFPC2 F814W images with a magnitude of , but is below the detection limit of the F606W images. We show that this was likely a red supergiant (RSG) with a mass of . The object is detected at 4.7σ above the background noise. Even if this detection is spurious, the 5σ upper limit would give a robust upper mass limit of for a RSG progenitor. These initial masses are very similar to those of two previously identified RSG progenitors of the Type II-P SNe 2004gd (8 -2+4 M⊙) and 2005cs (9-2 +3 M⊙).

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