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JWST Observations of SN 2023ixf II: The Panchromatic Evolution Between 250 and 720 Days After the Explosion

Fuente: arXiv

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Autori principali:	Medler, K., Ashall, C., Hoeflich, P., Baron, E., DerKacy, J. M., Shahbandeh, M., Mera, T., Pfeffer, C. M., Hoogendam, W. B., Jones, D. O., Shiber, S., Fereidouni, E., Fox, O. D., Jencson, J., Galbany, L., Hinkle, J. T., Tucker, M. A., Shappee, B. J., Huber, M. E., Auchettl, K., Angus, C. R., Desai, D. D., Do, A., Payne, A. V., Shi, J., Kong, M. Y., Romagnoli, S., Syncatto, A., Clayton, G., Dulude, M., Engesser, M., Filippenko, A. V., Gomez, S., Hsiao, E. Y., de Jaeger, T., Johansson, J., Krisciunas, K., Kumar, S., Lu, J., Matsuura, M., Mazzali, P. A., Milisavljevic, D., Morrell, N., O'Steen, R., Park, S., Phillips, M. M., Ravi, A. P., Rest, A., Rho, J., Suntzeff, N. B., Sarangi, A., Smith, N., Stritzinger, M. D., Strolger, L., Szalai, T., Temim, T., Tinyanont, S., Van Dyk, S. D., Wang, L., Wang, Q., Wesson, R., Yang, Y., Zsiros, S.
Natura:	Preprint
Pubblicazione:	2025
Soggetti:	Solar and Stellar Astrophysics Astrophysics of Galaxies High Energy Astrophysical Phenomena
Accesso online:	Acceder al recurso
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_version_	1866912502497935360
author	Medler, K. Ashall, C. Hoeflich, P. Baron, E. DerKacy, J. M. Shahbandeh, M. Mera, T. Pfeffer, C. M. Hoogendam, W. B. Jones, D. O. Shiber, S. Fereidouni, E. Fox, O. D. Jencson, J. Galbany, L. Hinkle, J. T. Tucker, M. A. Shappee, B. J. Huber, M. E. Auchettl, K. Angus, C. R. Desai, D. D. Do, A. Payne, A. V. Shi, J. Kong, M. Y. Romagnoli, S. Syncatto, A. Clayton, G. Dulude, M. Engesser, M. Filippenko, A. V. Gomez, S. Hsiao, E. Y. de Jaeger, T. Johansson, J. Krisciunas, K. Kumar, S. Lu, J. Matsuura, M. Mazzali, P. A. Milisavljevic, D. Morrell, N. O'Steen, R. Park, S. Phillips, M. M. Ravi, A. P. Rest, A. Rho, J. Suntzeff, N. B. Sarangi, A. Smith, N. Stritzinger, M. D. Strolger, L. Szalai, T. Temim, T. Tinyanont, S. Van Dyk, S. D. Wang, L. Wang, Q. Wesson, R. Yang, Y. Zsiros, S.
author_facet	Medler, K. Ashall, C. Hoeflich, P. Baron, E. DerKacy, J. M. Shahbandeh, M. Mera, T. Pfeffer, C. M. Hoogendam, W. B. Jones, D. O. Shiber, S. Fereidouni, E. Fox, O. D. Jencson, J. Galbany, L. Hinkle, J. T. Tucker, M. A. Shappee, B. J. Huber, M. E. Auchettl, K. Angus, C. R. Desai, D. D. Do, A. Payne, A. V. Shi, J. Kong, M. Y. Romagnoli, S. Syncatto, A. Clayton, G. Dulude, M. Engesser, M. Filippenko, A. V. Gomez, S. Hsiao, E. Y. de Jaeger, T. Johansson, J. Krisciunas, K. Kumar, S. Lu, J. Matsuura, M. Mazzali, P. A. Milisavljevic, D. Morrell, N. O'Steen, R. Park, S. Phillips, M. M. Ravi, A. P. Rest, A. Rho, J. Suntzeff, N. B. Sarangi, A. Smith, N. Stritzinger, M. D. Strolger, L. Szalai, T. Temim, T. Tinyanont, S. Van Dyk, S. D. Wang, L. Wang, Q. Wesson, R. Yang, Y. Zsiros, S.
contents	We present the nebular phase spectroscopic and photometric observations of the nearby hydrogen-rich core-collapse supernova (CC-SN) 2023ixf, obtained through our JWST programs. These observations, combined with ground-based optical and near-infrared spectra, cover +252.67 - 719.96 d, creating a comprehensive, panchromatic time-series dataset spanning 0.32 - 30$μ$m. In this second paper of the series, we focus on identifying key spectral emission features and tracking their evolution through the nebular phase. The JWST data reveal hydrogen emission from the Balmer to Humphreys series, as well as prominent forbidden lines from Ne, Ar, Fe, Co, and Ni. NIRSpec observations display strong emission from the first overtone and fundamental bands of carbon monoxide, which weaken with time as the ejecta cools and dust emission dominates. The spectral energy distribution shows a clear infrared excess emerging by +252.67 d peaking around 10.0$μ$m, with a secondary bump at 18.0$μ$m developing by +719.96 d. We suggest that this evolution could arises from multiple warm dust components. In upcoming papers in this series, we will present detailed modeling of the molecular and dust properties. Overall, this dataset significantly advances our understanding of the mid-infrared properties of CC-SNe, providing an unprecedented view of their late-time line, molecule, and dust emission.
format	Preprint
id	arxiv_https___arxiv_org_abs_2507_19727
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	JWST Observations of SN 2023ixf II: The Panchromatic Evolution Between 250 and 720 Days After the Explosion Medler, K. Ashall, C. Hoeflich, P. Baron, E. DerKacy, J. M. Shahbandeh, M. Mera, T. Pfeffer, C. M. Hoogendam, W. B. Jones, D. O. Shiber, S. Fereidouni, E. Fox, O. D. Jencson, J. Galbany, L. Hinkle, J. T. Tucker, M. A. Shappee, B. J. Huber, M. E. Auchettl, K. Angus, C. R. Desai, D. D. Do, A. Payne, A. V. Shi, J. Kong, M. Y. Romagnoli, S. Syncatto, A. Clayton, G. Dulude, M. Engesser, M. Filippenko, A. V. Gomez, S. Hsiao, E. Y. de Jaeger, T. Johansson, J. Krisciunas, K. Kumar, S. Lu, J. Matsuura, M. Mazzali, P. A. Milisavljevic, D. Morrell, N. O'Steen, R. Park, S. Phillips, M. M. Ravi, A. P. Rest, A. Rho, J. Suntzeff, N. B. Sarangi, A. Smith, N. Stritzinger, M. D. Strolger, L. Szalai, T. Temim, T. Tinyanont, S. Van Dyk, S. D. Wang, L. Wang, Q. Wesson, R. Yang, Y. Zsiros, S. Solar and Stellar Astrophysics Astrophysics of Galaxies High Energy Astrophysical Phenomena We present the nebular phase spectroscopic and photometric observations of the nearby hydrogen-rich core-collapse supernova (CC-SN) 2023ixf, obtained through our JWST programs. These observations, combined with ground-based optical and near-infrared spectra, cover +252.67 - 719.96 d, creating a comprehensive, panchromatic time-series dataset spanning 0.32 - 30$μ$m. In this second paper of the series, we focus on identifying key spectral emission features and tracking their evolution through the nebular phase. The JWST data reveal hydrogen emission from the Balmer to Humphreys series, as well as prominent forbidden lines from Ne, Ar, Fe, Co, and Ni. NIRSpec observations display strong emission from the first overtone and fundamental bands of carbon monoxide, which weaken with time as the ejecta cools and dust emission dominates. The spectral energy distribution shows a clear infrared excess emerging by +252.67 d peaking around 10.0$μ$m, with a secondary bump at 18.0$μ$m developing by +719.96 d. We suggest that this evolution could arises from multiple warm dust components. In upcoming papers in this series, we will present detailed modeling of the molecular and dust properties. Overall, this dataset significantly advances our understanding of the mid-infrared properties of CC-SNe, providing an unprecedented view of their late-time line, molecule, and dust emission.
title	JWST Observations of SN 2023ixf II: The Panchromatic Evolution Between 250 and 720 Days After the Explosion
topic	Solar and Stellar Astrophysics Astrophysics of Galaxies High Energy Astrophysical Phenomena
url	https://arxiv.org/abs/2507.19727