The DOI matches its Crossref record; 16 of the 16 references it cites were found in a registry or an index.
A ROTATION MEASURE IMAGE OF THE SKY
Open accessAbstract
We have re-analyzed the NRAO VLA Sky Survey (NVSS) data to derive rotation measures (RMs) toward 37,543 polarized radio sources. The resulting catalog of RM values covers the sky area north of declination −40° with an average density of more than one RM per square degree. We present an image of the median RM over 82% of the sky with a resolution of 8° and a typical error of ±1–2 rad m −2 . The image shows large-scale structures in RM that extend to very high Galactic latitudes. A simple analysis of the RM structure at high Galactic latitudes is used to derive properties of the Galactic halo magnetic field in the solar neighborhood. We find the component of the local field perpendicular to the plane (the z -component) equal to +0.30 μG for z < 0 and −0.14 μG for z >0. The reversal of sign across the Galactic plane is consistent with a quadrupole field geometry for the poloidal component of the halo field. The halo magnetic field component parallel to the disk is also found to be antisymmetric and generally consistent with a toroidal field, with strength +0.83 μG for z < 0 and −0.39 μG for z >0. We have identified five regions of the sky where the foreground median RM is consistently less than 1 rad m −2 over several degrees. These holes in the foreground RM will be useful for future studies of possible small-scale fluctuations in cosmic magnetic field structures. In addition to allowing measurement of RMs toward polarized sources, the new analysis of the NVSS data removes the effects of bandwidth depolarization for |RM| ≳ 100 rad m −2 inherent in the original NVSS source catalog. This new catalog of RMs and polarized flux densities is available online, and will be a valuable resource for further studies of the Galactic magnetic field and magnetoionic medium, and extragalactic magnetic fields.
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Condon, J. J., Cotton, W. D., Greisen, E. W., Yin, Q. F., Perley, R. A., Taylor, G. B., & Broderick, J. J. (1998) · The Astronomical Journal · doi:10.1086/300337 · Cited by 5,760
The Canadian Galactic Plane Survey
Taylor, A. R., Gibson, S. J., Peracaula, M., Martin, P. G., Landecker, T. L., Brunt, C. M., Dewdney, P. E., Dougherty, S. M., Gray, A. D., Higgs, L. A., et al. (2003) · The Astronomical Journal · doi:10.1086/375301 · Cited by 600
Self-citationThe Vertical Structure of Warm Ionised Gas in the Milky Way
Gaensler, B. M., Madsen, G. J., Chatterjee, S., & Mao, S. A. (2008) · Publications of the Astronomical Society of Australia · doi:10.1071/as08004 · Cited by 321
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The Outer Scale of Turbulence in the Magnetoionized Galactic Interstellar Medium
Haverkorn, M., Brown, J. C., Gaensler, B. M., & McClure‐Griffiths, N. M. (2008) · The Astrophysical Journal · doi:10.1086/587165 · Cited by 238
Brown, J. C., Haverkorn, M., Gaensler, B. M., Taylor, A. R., Bizunok, N. S., McClure‐Griffiths, N. M., Dickey, J. M., & Green, A. J. (2007) · The Astrophysical Journal · doi:10.1086/518499 · Cited by 213
Self-citationThe Magnetic Field of the Large Magellanic Cloud Revealed Through Faraday Rotation
Gaensler, B. M., Haverkorn, M., Staveley-Smith, L., Dickey, J. M., McClure-Griffiths, N. M., Dickel, J. R., & Wolleben, M. (2005) · Science · doi:10.1126/science.1108832 · Cited by 204
The Faraday rotation measures of extragalactic radio sources
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Radio Polarization from the Inner Galaxy at Arcminute Resolution
Gaensler, B. M., Dickey, J. M., McClure‐Griffiths, N. M., Green, A. J., Wieringa, M. H., & Haynes, R. F. (2001) · The Astrophysical Journal · doi:10.1086/319468 · Cited by 173
A Faraday Rotation Search for Magnetic Fields in Large‐scale Structure
Xu, Y., Kronberg, P. P., Habib, S., & Dufton, Q. W. (2006) · The Astrophysical Journal · doi:10.1086/498336 · Cited by 143
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Planck intermediate results. XIX. An overview of the polarized thermal emission from Galactic dust
Planck Collaboration:, Ade, P. A. R., Aghanim, N., Alina, D., Alves, M. I. R., Armitage-Caplan, C., Arnaud, M., Arzoumanian, D., Ashdown, M., Atrio-Barandela, F., et al. (2015) · Astronomy & Astrophysics · doi:10.1051/0004-6361/201424082 · Cited by 414
van Weeren, R. J., Röttgering, H. J. A., Intema, H. T., Rudnick, L., Brüggen, M., Hoeft, M., & Oonk, J. B. R. (2012) · Astronomy & Astrophysics · doi:10.1051/0004-6361/201219000 · Cited by 139
Polarized radio filaments outside the Galactic plane
Vidal, M., Dickinson, C., Davies, R. D., & Leahy, J. P. (2015) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stv1328 · Cited by 88
Sun, X. H., Landecker, T. L., Gaensler, B. M., Carretti, E., Reich, W., Leahy, J. P., McClure-Griffiths, N. M., Crocker, R. M., Wolleben, M., Haverkorn, M., et al. (2015) · The Astrophysical Journal · doi:10.1088/0004-637x/811/1/40 · Cited by 53
Absolutely calibrated radio polarimetry of the inner Galaxy at 2.3 and 4.8 GHz
Sun, X. H., Gaensler, B. M., Carretti, E., Purcell, C. R., Staveley-Smith, L., Bernardi, G., & Haverkorn, M. (2014) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stt2110 · Cited by 30
Metadata
- Authors
- Taylor, A. R., Stil, J. M., & Sunstrum, C.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2009-08-19
- Volume
- 702
- Issue
- 2
- Pages
- 1230-1236
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2059001712
- Cited by
- 417
- References
- 16
- FWCI
- 14.74
- Type
- journal article
- Language
- en
- Open access
- bronze
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