Estimating Global Ejecta Mass Ratios in Tycho's SNR
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866912403641335808 |
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| author | Holland-Ashford, Tyler Slane, Patrick Williams, Brian |
| author_facet | Holland-Ashford, Tyler Slane, Patrick Williams, Brian |
| contents | In this work, as a follow-up to our similar analysis of Kepler's supernova remnant (SNR), we estimate total mass ratios of various ejecta elements in Tycho's SNR using Suzaku X-ray data. In our spectral analysis, we account for uncertainties arising from Suzaku's effective area calibration (5%-15%) and from the unknown filling factors of the various plasma components in our spectral model (1%-10%). We compare our calculated ejecta mass ratios to results from previous X-ray analyses of Tycho's SNR and to the nucleosynthesis results from Type Ia supernova simulations. Our estimated ejecta mass ratios for Tycho's SNR are only consistent with simulations that use a $\sim$90% attenuated $^{12}$C$+^{16}$O reaction rate (as for Kepler's SNR), are inconsistent with simulations involving a double detonation of a thick helium layer, and support a Type Ia explosion of normal luminosity where $\sim$85% of the ejecta has been heated by the reverse shock. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2505_23897 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Estimating Global Ejecta Mass Ratios in Tycho's SNR Holland-Ashford, Tyler Slane, Patrick Williams, Brian High Energy Astrophysical Phenomena In this work, as a follow-up to our similar analysis of Kepler's supernova remnant (SNR), we estimate total mass ratios of various ejecta elements in Tycho's SNR using Suzaku X-ray data. In our spectral analysis, we account for uncertainties arising from Suzaku's effective area calibration (5%-15%) and from the unknown filling factors of the various plasma components in our spectral model (1%-10%). We compare our calculated ejecta mass ratios to results from previous X-ray analyses of Tycho's SNR and to the nucleosynthesis results from Type Ia supernova simulations. Our estimated ejecta mass ratios for Tycho's SNR are only consistent with simulations that use a $\sim$90% attenuated $^{12}$C$+^{16}$O reaction rate (as for Kepler's SNR), are inconsistent with simulations involving a double detonation of a thick helium layer, and support a Type Ia explosion of normal luminosity where $\sim$85% of the ejecta has been heated by the reverse shock. |
| title | Estimating Global Ejecta Mass Ratios in Tycho's SNR |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2505.23897 |