Spectropolarimetry of SN 2023ixf Reveals Both Circumstellar Material and an Aspherical Helium Core

We present multi-epoch optical spectropolarimetric and imaging polarimetric observations of the nearby Type II supernova (SN) 2023ixf discovered in M101 at a distance of 6.85 Mpc. The first imaging polarimetric observations were taken +2.33 days (60085.08 MJD) after the explosion, while the last ima...

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Bibliographic Details
Main Authors:	Manisha Shrestha, Sabrina DeSoto, David J. Sand, G. Grant Williams, Jennifer L. Hoffman, Paul S. Smith, Callum McCall, Justyn R. Maund, Iain A. Steele, Klaas Wiersema, Jennifer E. Andrews, Nathan Smith, Christopher Bilinski, Peter Milne, Ramya M. Anche, K. Azalee Bostroem, Griffin Hosseinzadeh, Jeniveve Pearson, Douglas C. Leonard, Brian Hsu, Yize Dong, Emily Hoang, Daryl Janzen, Jacob E. Jencson, Saurabh W. Jha, M. J. Lundquist, Darshana Mehta, Nicolás Meza Retamal, Stefano Valenti, Joseph Farah, D. Andrew Howell, Curtis McCully, Megan Newsome, Estefania Padilla Gonzalez, Craig Pellegrino, Giacomo Terreran
Format:	Article
Language:	English
Published:	IOP Publishing 2025-01-01
Series:	The Astrophysical Journal Letters
Subjects:	Core-collapse supernovae Type II supernovae Red supergiant stars Stellar mass loss Circumstellar matter Spectropolarimetry
Online Access:	https://doi.org/10.3847/2041-8213/adbb63
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Spectropolarimetry of SN 2023ixf Reveals Both Circumstellar Material and an Aspherical Helium Core

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