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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2310.14874 |
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| _version_ | 1866913189306826752 |
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| author | Wang, Lingzhi Hu, Maokai Wang, Lifan Yang, Yi Yang, Jiawen Gomez, Haley Chen, Sijie Hu, Lei Chen, Ting-Wan Mo, Jun Wang, Xiaofeng Baade, Dietrich Hoeflich, Peter Wheeler, J. Craig Pignata, Giuliano Burke, Jamison Hiramatsu, Daichi Howell, D. Andrew McCully, Curtis Pellegrino, Craig Galbany, Lluís Hsiao, Eric Y. Sand, David J. Zhang, Jujia Uddin, Syed A Anderson, J. P. Ashall, Chris Cheng, Cheng Gromadzki, Mariusz Inserra, Cosimo Lin, Han Morrell, N. Morales-Garoffolo, Antonia üller-Bravo, T. E. M Nicholl, Matt Gonzalez, Estefania Padilla Phillips, M. M. Pineda-García, J. Sai, Hanna Smith, Mathew Shahbandeh, M. Srivastav, Shubham Stritzinger, M. D. Yang, Sheng Young, D. R. Yu, Lixin Zhang, Xinghan |
| author_facet | Wang, Lingzhi Hu, Maokai Wang, Lifan Yang, Yi Yang, Jiawen Gomez, Haley Chen, Sijie Hu, Lei Chen, Ting-Wan Mo, Jun Wang, Xiaofeng Baade, Dietrich Hoeflich, Peter Wheeler, J. Craig Pignata, Giuliano Burke, Jamison Hiramatsu, Daichi Howell, D. Andrew McCully, Curtis Pellegrino, Craig Galbany, Lluís Hsiao, Eric Y. Sand, David J. Zhang, Jujia Uddin, Syed A Anderson, J. P. Ashall, Chris Cheng, Cheng Gromadzki, Mariusz Inserra, Cosimo Lin, Han Morrell, N. Morales-Garoffolo, Antonia üller-Bravo, T. E. M Nicholl, Matt Gonzalez, Estefania Padilla Phillips, M. M. Pineda-García, J. Sai, Hanna Smith, Mathew Shahbandeh, M. Srivastav, Shubham Stritzinger, M. D. Yang, Sheng Young, D. R. Yu, Lixin Zhang, Xinghan |
| contents | Dust associated with various stellar sources in galaxies at all cosmic epochs remains a controversial topic, particularly whether supernovae (SNe) play an important role in dust production. We report evidence of dust formation in the cold, dense shell behind the ejecta-circumstellar medium (CSM) interaction in the Type Ia-CSM SN 2018evt three years after the explosion, characterized by a rise in the mid-infrared (MIR) emission accompanied by an accelerated decline in the optical radiation of the SN. Such a dust-formation picture is also corroborated by the concurrent evolution of the profiles of the Ha emission line. Our model suggests enhanced CSM dust concentration at increasing distances from the SN as compared to what can be expected from the density profile of the mass loss from a steady stellar wind. By the time of the last MIR observations at day +1041, a total amount of 1.2+-0.2x10^{-2} Msun of new dust has been formed by SN 2018evt, making SN 2018evt one of the most prolific dust factories among SNe with evidence of dust formation. The unprecedented witness of the intense production procedure of dust may shed light on the perceptions of dust formation in cosmic history. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_14874 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Newly Formed Dust within the Circumstellar Environment of SNIa-CSM 2018evt Wang, Lingzhi Hu, Maokai Wang, Lifan Yang, Yi Yang, Jiawen Gomez, Haley Chen, Sijie Hu, Lei Chen, Ting-Wan Mo, Jun Wang, Xiaofeng Baade, Dietrich Hoeflich, Peter Wheeler, J. Craig Pignata, Giuliano Burke, Jamison Hiramatsu, Daichi Howell, D. Andrew McCully, Curtis Pellegrino, Craig Galbany, Lluís Hsiao, Eric Y. Sand, David J. Zhang, Jujia Uddin, Syed A Anderson, J. P. Ashall, Chris Cheng, Cheng Gromadzki, Mariusz Inserra, Cosimo Lin, Han Morrell, N. Morales-Garoffolo, Antonia üller-Bravo, T. E. M Nicholl, Matt Gonzalez, Estefania Padilla Phillips, M. M. Pineda-García, J. Sai, Hanna Smith, Mathew Shahbandeh, M. Srivastav, Shubham Stritzinger, M. D. Yang, Sheng Young, D. R. Yu, Lixin Zhang, Xinghan High Energy Astrophysical Phenomena Solar and Stellar Astrophysics Dust associated with various stellar sources in galaxies at all cosmic epochs remains a controversial topic, particularly whether supernovae (SNe) play an important role in dust production. We report evidence of dust formation in the cold, dense shell behind the ejecta-circumstellar medium (CSM) interaction in the Type Ia-CSM SN 2018evt three years after the explosion, characterized by a rise in the mid-infrared (MIR) emission accompanied by an accelerated decline in the optical radiation of the SN. Such a dust-formation picture is also corroborated by the concurrent evolution of the profiles of the Ha emission line. Our model suggests enhanced CSM dust concentration at increasing distances from the SN as compared to what can be expected from the density profile of the mass loss from a steady stellar wind. By the time of the last MIR observations at day +1041, a total amount of 1.2+-0.2x10^{-2} Msun of new dust has been formed by SN 2018evt, making SN 2018evt one of the most prolific dust factories among SNe with evidence of dust formation. The unprecedented witness of the intense production procedure of dust may shed light on the perceptions of dust formation in cosmic history. |
| title | Newly Formed Dust within the Circumstellar Environment of SNIa-CSM 2018evt |
| topic | High Energy Astrophysical Phenomena Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2310.14874 |