# Linear and circular polarimetry observations of GRB afterglows

Source: [Linear and circular polarimetry observations of GRB afterglows](<https://www.sota2.com/research/paper/68fa30b11e209131ce8779b2>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T18:22:14.133Z

Authors: K. Wiersema

Published: 2013-02-08T16:57:14.000Z

## Abstract

Follow-up observations of large numbers of gamma-ray burst (GRB) afterglows, facilitated by the Swift satellite, have produced a large sample of spectral energy distributions and light curves, from which the basic micro- and macrophysical parameters of afterglows may be derived. However, a number of phenomena have been observed that defy explanation by simple versions of the standard fireball model, leading to a variety of new models. Polarimetry has shown great promise as a diagnosis of afterglow physics, probing the magnetic field properties of the afterglow and geometrical effects (e.g. jet breaks). Unfortunately, high quality polarimetry of a significant sample of afterglows is difficult to acquire, requiring specialised instrumentation and observing modes. In this paper I will review the recent successes in late-time afterglow polarimetry, also showing first results of new instruments and observing campaigns. I will particularly focus on jet breaks.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1302.2083>)

[PDF](<https://arxiv.org/pdf/1302.2083.pdf>)