Staff View: :: Library Catalog

Saved in:

Bibliographic Details
Main Authors:	Jacobson-Galan, W. V., Dessart, L., Margutti, R., Chornock, R., Foley, R. J., Kilpatrick, C. D., Jones, D. O., Taggart, K., Angus, C. R., Bhattacharjee, S., Braff, L. A., Brethauer, D., Burgasser, A. J., Cao, F., Carlile, C. M., Chambers, K. C., Coulter, D. A., Dominguez-Ruiz, E., Dickinson, C. B., de Boer, T., Gagliano, A., Gall, C., Gao, H., Gates, E. L., Gomez, S., Guolo, M., Halford, M. R. J., Hjorth, J., Huber, M. E., Johnson, M. N., Karpoor, P. R., Laskar, T., LeBaron, N, Li, Z., Lin, Y., Loch, S. D., Lynam, P. D., Magnier, E. A., Maloney, P., Matthews, D. J., McDonald, M., Miao, H. -Y., Milisavljevic, D., Pan, Y. -C., Pradyumna, S., Ransome, C. L., Rees, J. M., Rest, A., Rojas-Bravo, C., Sandford, N. R., Ascencio, L. Sandoval, Sanjaripour, S., Savino, A., Sears, H., Sharei, N., Smartt, S. J., Softich, E. R., Theissen, C. A., Tinyanont, S., Tohfa, Hurum Maksora, Villar, V. A., Wang, Q., Wainscoat, R. J., Westerling, A. L., Wiston, E., Wozniak, M. A., Yadavalli, S. K., Zenati, Y.
Format:	Preprint
Published:	2023
Subjects:	High Energy Astrophysical Phenomena Astrophysics of Galaxies Solar and Stellar Astrophysics
Online Access:	https://arxiv.org/abs/2306.04721
Tags:	Add Tag No Tags, Be the first to tag this record!

_version_	1866908812157386752
author	Jacobson-Galan, W. V. Dessart, L. Margutti, R. Chornock, R. Foley, R. J. Kilpatrick, C. D. Jones, D. O. Taggart, K. Angus, C. R. Bhattacharjee, S. Braff, L. A. Brethauer, D. Burgasser, A. J. Cao, F. Carlile, C. M. Chambers, K. C. Coulter, D. A. Dominguez-Ruiz, E. Dickinson, C. B. de Boer, T. Gagliano, A. Gall, C. Gao, H. Gates, E. L. Gomez, S. Guolo, M. Halford, M. R. J. Hjorth, J. Huber, M. E. Johnson, M. N. Karpoor, P. R. Laskar, T. LeBaron, N Li, Z. Lin, Y. Loch, S. D. Lynam, P. D. Magnier, E. A. Maloney, P. Matthews, D. J. McDonald, M. Miao, H. -Y. Milisavljevic, D. Pan, Y. -C. Pradyumna, S. Ransome, C. L. Rees, J. M. Rest, A. Rojas-Bravo, C. Sandford, N. R. Ascencio, L. Sandoval Sanjaripour, S. Savino, A. Sears, H. Sharei, N. Smartt, S. J. Softich, E. R. Theissen, C. A. Tinyanont, S. Tohfa, Hurum Maksora Villar, V. A. Wang, Q. Wainscoat, R. J. Westerling, A. L. Wiston, E. Wozniak, M. A. Yadavalli, S. K. Zenati, Y.
author_facet	Jacobson-Galan, W. V. Dessart, L. Margutti, R. Chornock, R. Foley, R. J. Kilpatrick, C. D. Jones, D. O. Taggart, K. Angus, C. R. Bhattacharjee, S. Braff, L. A. Brethauer, D. Burgasser, A. J. Cao, F. Carlile, C. M. Chambers, K. C. Coulter, D. A. Dominguez-Ruiz, E. Dickinson, C. B. de Boer, T. Gagliano, A. Gall, C. Gao, H. Gates, E. L. Gomez, S. Guolo, M. Halford, M. R. J. Hjorth, J. Huber, M. E. Johnson, M. N. Karpoor, P. R. Laskar, T. LeBaron, N Li, Z. Lin, Y. Loch, S. D. Lynam, P. D. Magnier, E. A. Maloney, P. Matthews, D. J. McDonald, M. Miao, H. -Y. Milisavljevic, D. Pan, Y. -C. Pradyumna, S. Ransome, C. L. Rees, J. M. Rest, A. Rojas-Bravo, C. Sandford, N. R. Ascencio, L. Sandoval Sanjaripour, S. Savino, A. Sears, H. Sharei, N. Smartt, S. J. Softich, E. R. Theissen, C. A. Tinyanont, S. Tohfa, Hurum Maksora Villar, V. A. Wang, Q. Wainscoat, R. J. Westerling, A. L. Wiston, E. Wozniak, M. A. Yadavalli, S. K. Zenati, Y.
contents	We present UV/optical observations and models of supernova (SN) 2023ixf, a type II SN located in Messier 101 at 6.9 Mpc. Early-time ("flash") spectroscopy of SN 2023ixf, obtained primarily at Lick Observatory, reveals emission lines of H I, He I/II, C IV, and N III/IV/V with a narrow core and broad, symmetric wings arising from the photo-ionization of dense, close-in circumstellar material (CSM) located around the progenitor star prior to shock breakout. These electron-scattering broadened line profiles persist for $\sim$8 days with respect to first light, at which time Doppler broadened features from the fastest SN ejecta form, suggesting a reduction in CSM density at $r \gtrsim 10^{15}$ cm. The early-time light curve of SN2023ixf shows peak absolute magnitudes (e.g., $M_{u} = -18.6$ mag, $M_{g} = -18.4$ mag) that are $\gtrsim 2$ mag brighter than typical type II supernovae, this photometric boost also being consistent with the shock power supplied from CSM interaction. Comparison of SN 2023ixf to a grid of light curve and multi-epoch spectral models from the non-LTE radiative transfer code CMFGEN and the radiation-hydrodynamics code HERACLES suggests dense, solar-metallicity, CSM confined to $r = (0.5-1) \times 10^{15}$ cm and a progenitor mass-loss rate of $\dot{M} = 10^{-2}$ M$_{\odot}$yr$^{-1}$. For the assumed progenitor wind velocity of $v_w = 50$ km s$^{-1}$, this corresponds to enhanced mass-loss (i.e., ``super-wind'' phase) during the last $\sim$3-6 years before explosion.
format	Preprint
id	arxiv_https___arxiv_org_abs_2306_04721
institution	arXiv
publishDate	2023
record_format	arxiv
spellingShingle	SN 2023ixf in Messier 101: Photo-ionization of Dense, Close-in Circumstellar Material in a Nearby Type II Supernova Jacobson-Galan, W. V. Dessart, L. Margutti, R. Chornock, R. Foley, R. J. Kilpatrick, C. D. Jones, D. O. Taggart, K. Angus, C. R. Bhattacharjee, S. Braff, L. A. Brethauer, D. Burgasser, A. J. Cao, F. Carlile, C. M. Chambers, K. C. Coulter, D. A. Dominguez-Ruiz, E. Dickinson, C. B. de Boer, T. Gagliano, A. Gall, C. Gao, H. Gates, E. L. Gomez, S. Guolo, M. Halford, M. R. J. Hjorth, J. Huber, M. E. Johnson, M. N. Karpoor, P. R. Laskar, T. LeBaron, N Li, Z. Lin, Y. Loch, S. D. Lynam, P. D. Magnier, E. A. Maloney, P. Matthews, D. J. McDonald, M. Miao, H. -Y. Milisavljevic, D. Pan, Y. -C. Pradyumna, S. Ransome, C. L. Rees, J. M. Rest, A. Rojas-Bravo, C. Sandford, N. R. Ascencio, L. Sandoval Sanjaripour, S. Savino, A. Sears, H. Sharei, N. Smartt, S. J. Softich, E. R. Theissen, C. A. Tinyanont, S. Tohfa, Hurum Maksora Villar, V. A. Wang, Q. Wainscoat, R. J. Westerling, A. L. Wiston, E. Wozniak, M. A. Yadavalli, S. K. Zenati, Y. High Energy Astrophysical Phenomena Astrophysics of Galaxies Solar and Stellar Astrophysics We present UV/optical observations and models of supernova (SN) 2023ixf, a type II SN located in Messier 101 at 6.9 Mpc. Early-time ("flash") spectroscopy of SN 2023ixf, obtained primarily at Lick Observatory, reveals emission lines of H I, He I/II, C IV, and N III/IV/V with a narrow core and broad, symmetric wings arising from the photo-ionization of dense, close-in circumstellar material (CSM) located around the progenitor star prior to shock breakout. These electron-scattering broadened line profiles persist for $\sim$8 days with respect to first light, at which time Doppler broadened features from the fastest SN ejecta form, suggesting a reduction in CSM density at $r \gtrsim 10^{15}$ cm. The early-time light curve of SN2023ixf shows peak absolute magnitudes (e.g., $M_{u} = -18.6$ mag, $M_{g} = -18.4$ mag) that are $\gtrsim 2$ mag brighter than typical type II supernovae, this photometric boost also being consistent with the shock power supplied from CSM interaction. Comparison of SN 2023ixf to a grid of light curve and multi-epoch spectral models from the non-LTE radiative transfer code CMFGEN and the radiation-hydrodynamics code HERACLES suggests dense, solar-metallicity, CSM confined to $r = (0.5-1) \times 10^{15}$ cm and a progenitor mass-loss rate of $\dot{M} = 10^{-2}$ M$_{\odot}$yr$^{-1}$. For the assumed progenitor wind velocity of $v_w = 50$ km s$^{-1}$, this corresponds to enhanced mass-loss (i.e., ``super-wind'' phase) during the last $\sim$3-6 years before explosion.
title	SN 2023ixf in Messier 101: Photo-ionization of Dense, Close-in Circumstellar Material in a Nearby Type II Supernova
topic	High Energy Astrophysical Phenomena Astrophysics of Galaxies Solar and Stellar Astrophysics
url	https://arxiv.org/abs/2306.04721

Similar Items