Observation of Toroidal Magnetic Fields on 100 pc Scales in the Galactic Center

G. Novak*, D. T. Chuss, J. L. Dotson, G. S. Griffin, R. F. Loewenstein, M. G. Newcomb, D. Pernic, J. B. Peterson, T. Renbarger

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


10.1002/asna.200385078.abs We present new submillimeter polarimetric observations of the Galactic center region, made using the SPARO polarimeter that operates at the South Pole. Compared with previous submillimeter polarimetry of this region, our measurements cover much more sky area, and they imply that the molecular gas in the central few hundred pc is threaded by a large scale toroidal magnetic field. We consider this result together with radio observations that show evidence for poloidal fields in the Galactic center, and with Faraday rotation observations. We compare all of these observations with a magnetodynamic model for the Galactic center.

Original languageEnglish (US)
Pages (from-to)133-137
Number of pages5
JournalAstronomische Nachrichten
Issue numberSUPPL.1
StatePublished - Sep 2003


  • Galactic Center
  • Interstellar Dust
  • Magnetic Fields
  • Submillimeter Polarimetry

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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