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Journal Article

Magnetic substructure in the northern Fermi Bubble revealed by polarized WMAP emission

MPS-Authors

Crocker,  Roland M.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30244

Aharonian,  Felix A.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;
Centre for Cosmic Physics, Dublin Institute for Advanced, Study, Dublin D4, Ireland;

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Fulltext (public)

1201.4491
(Preprint), 2MB

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There is no public supplementary material available
Citation

Jones, D., Crocker, R. M., Reich, W., Ott, J., & Aharonian, F. A. (2012). Magnetic substructure in the northern Fermi Bubble revealed by polarized WMAP emission. The Astrophysical Journal Letters, 747(1): L12, pp. 1-4. doi:10.1088/2041-8205/747/1/L12.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-D276-2
Abstract
We report a correspondence between giant, polarized microwave structures emerging north from the Galactic plane near the Galactic center and a number of GeV gamma-ray features, including the eastern edge of the recently-discovered northern Fermi Bubble. The polarized microwave features also correspond to structures seen in the all-sky 408 MHz total intensity data, including the Galactic center spur. The magnetic field structure revealed by the polarization data at 23 GHz suggests that neither the emission coincident with the Bubble edge nor the Galactic center spur are likely to be features of the local ISM. On the basis of the observed morphological correspondences, similar inferred spectra, and the similar energetics of all sources, we suggest a direct connection between the Galactic center spur and the northern Fermi Bubble.