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Polarimetry with SPI

Published online by Cambridge University Press:  12 May 2006

D. R. Willis ,
D. J. Clark ,
R. Diehl ,
L. Hanlon ,
G. Kanbach ,
B. McBreen ,
S. McGlynn  and
A. Strong
D. R. Willis
Affiliation:
MPE, MPI, Garching, Munich, Germany ISDC, Chemin D'Ecogia 16, Versoix, CH-1290, Switzerland Present address: ISDC, Chemin D'Ecogia 16, Versoix, CH-1290, Switzerland.
D. J. Clark
Affiliation:
School of Physics and Astronomy, University of Southampton, SO17 1BJ, UK
R. Diehl
Affiliation:
MPE, MPI, Garching, Munich, Germany
L. Hanlon
Affiliation:
Space Science and Advanced Materials Lab, National University of Ireland, UCD, Dublin 4, Ireland
G. Kanbach
Affiliation:
MPE, MPI, Garching, Munich, Germany
B. McBreen
Affiliation:
Space Science and Advanced Materials Lab, National University of Ireland, UCD, Dublin 4, Ireland
S. McGlynn
Affiliation:
Space Science and Advanced Materials Lab, National University of Ireland, UCD, Dublin 4, Ireland
A. Strong
Affiliation:
MPE, MPI, Garching, Munich, Germany
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Abstract

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Polarimetry in gamma-rays has the capability to enhance our understanding of compact object emission in our galaxy. In particular this diagnostic method could provide useful insight into the geometrical arrangement of these emitting objects and the roles that magnetic fields play in their emisson mechanisms. Gamma Ray Bursts have been studied in this way but the results, perhaps indicating a high degree of polarisation, remain unverified [Coburn & Boggs (2003), Wigger et al. (2004), Willis et al. (2005)]. The nature of GRBs solve many instrumental problems in polarimetry, however their true nature is less well defined and so a study of a better understood object such as the Crab Pulsar, for now, may reveal more as to the physics of the system.

Keywords

polarizationinstrumentation: polarimeterstechniques: polarimetricgamma rays: observations
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Symposium S230: Populations of High Energy Sources in Galaxies , August 2005 , pp. 83 - 84
Copyright
2006 International Astronomical Union