Large scale magnetic field of the Milky Way from WMAP3 data

R. Jansson; G. R. Farrar; A. H. Waelkens; T. A. Ensslin

Large scale magnetic field of the Milky Way from WMAP3 data

R. Jansson, G. R. Farrar, A. H. Waelkens, T. A. Ensslin

Research output: Contribution to conference › Paper › peer-review

Abstract

We report on initial results from a project to constrain the large-scale and turbulent magnetic fields of the Milky Way galaxy, which eventually will incorporate all of the relevant observational data. In this paper we fit popular large scale magnetic field models to WMAP3 polarization maps. We find that the polarization data can constrain certain model parameters but does not uniquely determine the best-fit parameters. We also find that the polarization data alone cannot distinguish between model symmetries, e.g., the existence of field reversals. We show how future UHECR data can break this degeneracy.

Original language	English (US)
Pages	223-226
Number of pages	4
State	Published - 2007
Event	30th International Cosmic Ray Conference, ICRC 2007 - Merida, Yucatan, Mexico Duration: Jul 3 2007 → Jul 11 2007

Other

Other	30th International Cosmic Ray Conference, ICRC 2007
Country/Territory	Mexico
City	Merida, Yucatan
Period	7/3/07 → 7/11/07

ASJC Scopus subject areas

Nuclear and High Energy Physics

Cite this

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title = "Large scale magnetic field of the Milky Way from WMAP3 data",

abstract = "We report on initial results from a project to constrain the large-scale and turbulent magnetic fields of the Milky Way galaxy, which eventually will incorporate all of the relevant observational data. In this paper we fit popular large scale magnetic field models to WMAP3 polarization maps. We find that the polarization data can constrain certain model parameters but does not uniquely determine the best-fit parameters. We also find that the polarization data alone cannot distinguish between model symmetries, e.g., the existence of field reversals. We show how future UHECR data can break this degeneracy.",

author = "R. Jansson and Farrar, {G. R.} and Waelkens, {A. H.} and Ensslin, {T. A.}",

year = "2007",

language = "English (US)",

pages = "223--226",

note = "30th International Cosmic Ray Conference, ICRC 2007 ; Conference date: 03-07-2007 Through 11-07-2007",

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T1 - Large scale magnetic field of the Milky Way from WMAP3 data

AU - Jansson, R.

AU - Farrar, G. R.

AU - Waelkens, A. H.

AU - Ensslin, T. A.

PY - 2007

Y1 - 2007

N2 - We report on initial results from a project to constrain the large-scale and turbulent magnetic fields of the Milky Way galaxy, which eventually will incorporate all of the relevant observational data. In this paper we fit popular large scale magnetic field models to WMAP3 polarization maps. We find that the polarization data can constrain certain model parameters but does not uniquely determine the best-fit parameters. We also find that the polarization data alone cannot distinguish between model symmetries, e.g., the existence of field reversals. We show how future UHECR data can break this degeneracy.

AB - We report on initial results from a project to constrain the large-scale and turbulent magnetic fields of the Milky Way galaxy, which eventually will incorporate all of the relevant observational data. In this paper we fit popular large scale magnetic field models to WMAP3 polarization maps. We find that the polarization data can constrain certain model parameters but does not uniquely determine the best-fit parameters. We also find that the polarization data alone cannot distinguish between model symmetries, e.g., the existence of field reversals. We show how future UHECR data can break this degeneracy.

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M3 - Paper

AN - SCOPUS:84899556915

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EP - 226

T2 - 30th International Cosmic Ray Conference, ICRC 2007

Y2 - 3 July 2007 through 11 July 2007

ER -

Large scale magnetic field of the Milky Way from WMAP3 data

Abstract

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ASJC Scopus subject areas

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