AstroNote 2023-135

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DRAFT
2023-05-22 20:46:25
Type: Object/s-Data/Analysis
Liverpool Telescope Polarimetric Observations of SN 2023ixf
Authors: J.R. Maund (Sheffield), K. Wiersema (Hertfordshire), M. Shrestha (UA), I. Steele (Liverpool John Moores), G. Hume (Sheffield)
Abstract:
We report broad-band (BVRI) polarimetric observations of SN 2023ixf with the Liverpool Telescope on 2023 May 21

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.

Show current TNS values
CatalogNameReported RAReported DECReported Obj-TypeReported RedshiftHost NameHost RedshiftRemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2023ixf14:03:38.557+54:18:42.03SN II0.000804M10114:03:38.562+54:18:41.94SN II0.0008