SIMBAD references

2003ApJ...596..328F - Astrophys. J., 596, 328-343 (2003/October-2)

Interstellar hydroxyl masers in the galaxy. II. Zeeman pairs and the galactic magnetic field.


Abstract (from CDS):

We have identified and classified Zeeman pairs in the survey by Argon, Reid, & Menten of massive star-forming regions with 18 cm (2Π3/2,J=3/2) OH maser emission. We have found a total of more than 100 Zeeman pairs in more than 50 massive star-forming regions. The magnetic field deduced from the Zeeman splitting has allowed us to assign an overall line-of-sight magnetic field direction to many of the massive star-forming regions. Combining these data with other data sets obtained from OH Zeeman splitting, we have looked for correlations of magnetic field directions between star-forming regions scattered throughout the Galaxy. Our data do not support a uniform, Galactic-scale field direction, nor do we find any strong evidence of magnetic field correlations within spiral arms. However, our data suggest that in the solar neighborhood the magnetic field outside the solar circle is oriented clockwise as viewed from the north Galactic pole, while inside the solar circle it is oriented counterclockwise. This pattern, including the magnetic field reversal near the Sun, is in agreement with results obtained from pulsar rotation measures.

Abstract Copyright:

Journal keyword(s): Galaxy: Disk - ISM: H II Regions - ISM: Magnetic Fields - Masers - Radio Lines: ISM

Simbad objects: 88

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2003ApJ...596..328F and select 'bookmark this link' or equivalent in the popup menu