Starting on 2023 May 21.07UT (MJD60085.07), we observed SN 2023ixf with the MOPTOP instrument in the B, V, R and I bands as part of the “Programme Exploring Polarization Parameters of Explosions Robotically” (PEPPER).
We measured levels of polarization (and polarization angles) of:
B: p = 0.88 +/- 0.06%, theta= 157.3 +/- 1.9 degrees
V: p = 1.08 +/- 0.06%, theta= 156.4 +/- 1.5 degrees
R: p = 0.82 +/- 0.07%, theta= 154.3 +/- 2.3 degrees
I: p = 0.72 +/- 0.07%, theta= 160.7 +/- 2.9 degrees
Only two Galactic stars (HD119228 and HD126660) are present in the Heiles Catalogue (2000, AJ, 119, 923) within 5 degrees of SN2023ixf, with polarization levels < 0.2%. This suggests that the polarization observed for SN2023ixf is unlikely to be Galactic in origin and is, instead, associated with M101 and/or the supernova.
| Catalog | Name | Reported RA | Reported DEC | Reported Obj-Type | Reported Redshift | Host Name | Host Redshift | Remarks | TNS RA | TNS DEC | TNS Obj-Type | TNS Redshift |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TNS | 2023ixf | 14:03:38.557 | +54:18:42.03 | SN II | 0.000804 | M101 | 14:03:38.562 | +54:18:41.94 | SN II | 0.0008 |
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