The progenitor of the type II-P sn 2004dj in ngc 2403

J. Maíz-Apellániz, Howard E. Bond, Michael Hiram Siegel, Y. Lipkin, D. Maoz, E. O. Ofek, D. Poznanski

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Abstract

The Type II-P supernova SN 2004dj in the nearby galaxy NGC 2403 occurred at a position coincident with object 96 in the list of luminous stars and clusters in this galaxy published by Sandage in 1984. The coincidence is established definitively through astrometric registration of our ground-based archival images of NGC 2403 with our recent images showing the SN. The archival images show that Sandage 96 is slightly resolved from the ground. Preoutburst blue spectrograms obtained by Humphreys & Aaronson reveal that Sandage 96 has a composite spectrum, dominated in the blue region by A- and B-type stars, while infrared photometry shows that Sandage 96 also contains red supergiants. These results demonstrate that Sandage 96 is a young compact cluster. We have studied the stellar population of Sandage 96, using published photometric measurements combined with a X2 fitting code. We derive a cluster age of 13.6 Myr, a reddening of E(4405 - 5495) = 0.172, and a total stellar mass of 24,000 Mθ. For this cluster age, the SN progenitor had a main-sequence mass of 15 Mθ. Postoutburst photometry of Sandage 96 may establish whether the progenitor was a red or blue supergiant.

Original languageEnglish (US)
JournalAstrophysical Journal
Volume615
Issue number2 II
DOIs
StatePublished - Nov 10 2004

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galaxies
stars
infrared photometry
spectrograms
stellar mass
lists
photometry
supernovae
composite materials
registration
code
young

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Maíz-Apellániz, J., Bond, H. E., Siegel, M. H., Lipkin, Y., Maoz, D., Ofek, E. O., & Poznanski, D. (2004). The progenitor of the type II-P sn 2004dj in ngc 2403. Astrophysical Journal, 615(2 II). https://doi.org/10.1086/426120
Maíz-Apellániz, J. ; Bond, Howard E. ; Siegel, Michael Hiram ; Lipkin, Y. ; Maoz, D. ; Ofek, E. O. ; Poznanski, D. / The progenitor of the type II-P sn 2004dj in ngc 2403. In: Astrophysical Journal. 2004 ; Vol. 615, No. 2 II.
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abstract = "The Type II-P supernova SN 2004dj in the nearby galaxy NGC 2403 occurred at a position coincident with object 96 in the list of luminous stars and clusters in this galaxy published by Sandage in 1984. The coincidence is established definitively through astrometric registration of our ground-based archival images of NGC 2403 with our recent images showing the SN. The archival images show that Sandage 96 is slightly resolved from the ground. Preoutburst blue spectrograms obtained by Humphreys & Aaronson reveal that Sandage 96 has a composite spectrum, dominated in the blue region by A- and B-type stars, while infrared photometry shows that Sandage 96 also contains red supergiants. These results demonstrate that Sandage 96 is a young compact cluster. We have studied the stellar population of Sandage 96, using published photometric measurements combined with a X2 fitting code. We derive a cluster age of 13.6 Myr, a reddening of E(4405 - 5495) = 0.172, and a total stellar mass of 24,000 Mθ. For this cluster age, the SN progenitor had a main-sequence mass of 15 Mθ. Postoutburst photometry of Sandage 96 may establish whether the progenitor was a red or blue supergiant.",
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Maíz-Apellániz, J, Bond, HE, Siegel, MH, Lipkin, Y, Maoz, D, Ofek, EO & Poznanski, D 2004, 'The progenitor of the type II-P sn 2004dj in ngc 2403', Astrophysical Journal, vol. 615, no. 2 II. https://doi.org/10.1086/426120

The progenitor of the type II-P sn 2004dj in ngc 2403. / Maíz-Apellániz, J.; Bond, Howard E.; Siegel, Michael Hiram; Lipkin, Y.; Maoz, D.; Ofek, E. O.; Poznanski, D.

In: Astrophysical Journal, Vol. 615, No. 2 II, 10.11.2004.

Research output: Contribution to journalArticle

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AU - Bond, Howard E.

AU - Siegel, Michael Hiram

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AU - Maoz, D.

AU - Ofek, E. O.

AU - Poznanski, D.

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N2 - The Type II-P supernova SN 2004dj in the nearby galaxy NGC 2403 occurred at a position coincident with object 96 in the list of luminous stars and clusters in this galaxy published by Sandage in 1984. The coincidence is established definitively through astrometric registration of our ground-based archival images of NGC 2403 with our recent images showing the SN. The archival images show that Sandage 96 is slightly resolved from the ground. Preoutburst blue spectrograms obtained by Humphreys & Aaronson reveal that Sandage 96 has a composite spectrum, dominated in the blue region by A- and B-type stars, while infrared photometry shows that Sandage 96 also contains red supergiants. These results demonstrate that Sandage 96 is a young compact cluster. We have studied the stellar population of Sandage 96, using published photometric measurements combined with a X2 fitting code. We derive a cluster age of 13.6 Myr, a reddening of E(4405 - 5495) = 0.172, and a total stellar mass of 24,000 Mθ. For this cluster age, the SN progenitor had a main-sequence mass of 15 Mθ. Postoutburst photometry of Sandage 96 may establish whether the progenitor was a red or blue supergiant.

AB - The Type II-P supernova SN 2004dj in the nearby galaxy NGC 2403 occurred at a position coincident with object 96 in the list of luminous stars and clusters in this galaxy published by Sandage in 1984. The coincidence is established definitively through astrometric registration of our ground-based archival images of NGC 2403 with our recent images showing the SN. The archival images show that Sandage 96 is slightly resolved from the ground. Preoutburst blue spectrograms obtained by Humphreys & Aaronson reveal that Sandage 96 has a composite spectrum, dominated in the blue region by A- and B-type stars, while infrared photometry shows that Sandage 96 also contains red supergiants. These results demonstrate that Sandage 96 is a young compact cluster. We have studied the stellar population of Sandage 96, using published photometric measurements combined with a X2 fitting code. We derive a cluster age of 13.6 Myr, a reddening of E(4405 - 5495) = 0.172, and a total stellar mass of 24,000 Mθ. For this cluster age, the SN progenitor had a main-sequence mass of 15 Mθ. Postoutburst photometry of Sandage 96 may establish whether the progenitor was a red or blue supergiant.

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