Possible detection of the progenitor of the Type II supernova SN2023ixf
| Autor: | Pledger, Joanne L., Shara, Michael M. |
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| Rok vydání: | 2023 |
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| Druh dokumentu: | Working Paper |
| Popis: | Stellar evolution theory predicts multiple pathways to the explosive deaths of stars as supernovae. Locating and characterizing the progenitors of well-studied supernovae is important to constrain the theory, and to justify and design future surveys to improve on progenitor detections. Here we report the serendipitous pre-explosion imaging, by the {\it Hubble Space Telescope}, of SN2023ixf, one of the nearest extragalactic supernovae ever discovered, in the galaxy M101. The extremely red color and absolute magnitude M(F814W)=-5.11(+0.65/-0.47)mag suggest that the progenitor was a red supergiant. Comparison with stellar evolutionary isochrones suggests it is within the relatively low initial mass range of ~8-10Msun and that there is likely a lot of dust present at the supernova site. Comment: Revised version following referees comments with resulting downward revision in mass for the SN progenitor. 8 pages, 4 figures, 2 tables, resubmitted to ApJL |
| Databáze: | arXiv |
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