SIMBAD references

2012AJ....144..189M - Astron. J., 144, 189 (2012/December-0)

Comparison of two epochs of the Zeeman effect in the 44 GHz class I methanol (CH3OH) maser line in OMC-2.

MOMJIAN E. and SARMA A.P.

Abstract (from CDS):

We present a second epoch of observations of the 44 GHz Class I methanol maser line toward the star-forming region Orion Molecular Cloud 2. The observations were carried out with the Very Large Array, and constitute one of the first successful Zeeman effect detections with the new Wide-band Digital Architecture correlator. Comparing to the result of our earlier epoch of data for this region, we find that the intensity of the maser increased by 50%, but the magnetic field value has stayed the same, within the errors. This suggests that the methanol maser may be tracing the large-scale magnetic field that is not affected by the bulk gas motions or turbulence on smaller scales that is causing the change in maser intensity.

Abstract Copyright:

Journal keyword(s): ISM: clouds - ISM: magnetic fields - masers - polarization - radio lines: ISM - stars: formation

Simbad objects: 7

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2021.06.14-21:47:38

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