INTEGRAL/IBIS and optical observations of the Crab nebula/pulsar polarisation

Paul Moran; Andy Shearer; Christian Gouiffes; Philippe Laurent

doi:10.48550/ARXIV.1302.3622

INTEGRAL/IBIS and optical observations of the Crab nebula/pulsar polarisation

Paul Moran, Andy Shearer, Christian Gouiffes, Philippe Laurent

Department of Computing

Research output: Contribution to journal › Article › peer-review

Abstract

Previous INTEGRAL/IBIS observations have shown that the gamma-ray radiation of the Crab Nebula is highly polarised and remarkably aligned along the axis of rotation of the pulsar (Forot et al. 2008). Their study was based on the first four years of operation of the satellite. Here we present an analysis based upon nearly ten years of operation. This new analysis allows a better characterisation of the polarisation fraction and position angle, as well as a measure of spectral energy distribution of the polarised component. These results are then compared to the known optical polarisation of the pulsar and nearby synchrotron knot. In the future we shall compare the gamma-ray polarisation with the phase-resolved optical polarisation using instruments such as GASP (Kyne et al. 2010).

Original language	Undefined/Unknown
Journal	Proceedings of An INTEGRAL view of the high-energy sky (the first 10 years) - 9th INTEGRAL Workshop and celebration of the 10th anniversary of the launch — PoS(INTEGRAL 2012)
DOIs	https://doi.org/10.48550/ARXIV.1302.3622
Publication status	Published - 2013

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10.48550/ARXIV.1302.3622

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title = "INTEGRAL/IBIS and optical observations of the Crab nebula/pulsar polarisation",

abstract = "Previous INTEGRAL/IBIS observations have shown that the gamma-ray radiation of the Crab Nebula is highly polarised and remarkably aligned along the axis of rotation of the pulsar (Forot et al. 2008). Their study was based on the first four years of operation of the satellite. Here we present an analysis based upon nearly ten years of operation. This new analysis allows a better characterisation of the polarisation fraction and position angle, as well as a measure of spectral energy distribution of the polarised component. These results are then compared to the known optical polarisation of the pulsar and nearby synchrotron knot. In the future we shall compare the gamma-ray polarisation with the phase-resolved optical polarisation using instruments such as GASP (Kyne et al. 2010).",

author = "Paul Moran and Andy Shearer and Christian Gouiffes and Philippe Laurent",

year = "2013",

doi = "10.48550/ARXIV.1302.3622",

language = "Undefined/Unknown",

journal = "Proceedings of An INTEGRAL view of the high-energy sky (the first 10 years) - 9th INTEGRAL Workshop and celebration of the 10th anniversary of the launch — PoS(INTEGRAL 2012)",

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INTEGRAL/IBIS and optical observations of the Crab nebula/pulsar polarisation. / Moran, Paul; Shearer, Andy; Gouiffes, Christian et al.
In: Proceedings of An INTEGRAL view of the high-energy sky (the first 10 years) - 9th INTEGRAL Workshop and celebration of the 10th anniversary of the launch — PoS(INTEGRAL 2012), 2013.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - INTEGRAL/IBIS and optical observations of the Crab nebula/pulsar polarisation

AU - Moran, Paul

AU - Shearer, Andy

AU - Gouiffes, Christian

AU - Laurent, Philippe

PY - 2013

Y1 - 2013

N2 - Previous INTEGRAL/IBIS observations have shown that the gamma-ray radiation of the Crab Nebula is highly polarised and remarkably aligned along the axis of rotation of the pulsar (Forot et al. 2008). Their study was based on the first four years of operation of the satellite. Here we present an analysis based upon nearly ten years of operation. This new analysis allows a better characterisation of the polarisation fraction and position angle, as well as a measure of spectral energy distribution of the polarised component. These results are then compared to the known optical polarisation of the pulsar and nearby synchrotron knot. In the future we shall compare the gamma-ray polarisation with the phase-resolved optical polarisation using instruments such as GASP (Kyne et al. 2010).

AB - Previous INTEGRAL/IBIS observations have shown that the gamma-ray radiation of the Crab Nebula is highly polarised and remarkably aligned along the axis of rotation of the pulsar (Forot et al. 2008). Their study was based on the first four years of operation of the satellite. Here we present an analysis based upon nearly ten years of operation. This new analysis allows a better characterisation of the polarisation fraction and position angle, as well as a measure of spectral energy distribution of the polarised component. These results are then compared to the known optical polarisation of the pulsar and nearby synchrotron knot. In the future we shall compare the gamma-ray polarisation with the phase-resolved optical polarisation using instruments such as GASP (Kyne et al. 2010).

UR - https://arxiv.org/abs/1302.3622

U2 - 10.48550/ARXIV.1302.3622

DO - 10.48550/ARXIV.1302.3622

M3 - Article

JO - Proceedings of An INTEGRAL view of the high-energy sky (the first 10 years) - 9th INTEGRAL Workshop and celebration of the 10th anniversary of the launch — PoS(INTEGRAL 2012)

JF - Proceedings of An INTEGRAL view of the high-energy sky (the first 10 years) - 9th INTEGRAL Workshop and celebration of the 10th anniversary of the launch — PoS(INTEGRAL 2012)

ER -

INTEGRAL/IBIS and optical observations of the Crab nebula/pulsar polarisation

Abstract

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