Magnetic field and ISM in the local Galactic disc

Y. Sofue; H. Nakanishi; K. Ichiki

doi:10.1093/mnras/stz407

Magnetic field and ISM in the local Galactic disc

Astrophysics of Galaxies 2019-08-29 v3

Authors: Y. Sofue , H. Nakanishi , K. Ichiki

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Abstract

Correlation analysis is obtained among Faraday rotation measure, HI column density, thermal and synchrotron radio brightness using archival all-sky maps of the Galaxy. A method is presented to calculate the magnetic strength and its line-of-sight (LOS) component, volume gas densities, effective LOS depth, effective scale height of the disk) from these data in a hybrid way. Applying the method to archival data, all-sky maps of the local magnetic field strength and its parallel component are obtained, which reveal details of local field orientation.

Keywords

magnetic field interstellar medium faraday rotation galactic disk hi column density synchrotron radio brightness

Cite

@article{arxiv.1902.02535,
  title  = {Magnetic field and ISM in the local Galactic disc},
  author = {Y. Sofue and H. Nakanishi and K. Ichiki},
  journal= {arXiv preprint arXiv:1902.02535},
  year   = {2019}
}

Comments

11 pages, 15 figures, appeared in MNRAS, full resolution copy at http://www.ioa.s.u-tokyo.ac.jp/~sofue/papers/sofcomp/2019-mn-LocalMag.pdf

Magnetic field and ISM in the local Galactic disc

Abstract

Keywords

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