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We report on the observation of the 36 GHz methanol maser line in the starforming region DR21W to accurately measure the Zeeman effect. The reportedZeeman signature by Fish et al. (2011) became suspicious after an instrumentaleffect was discovered in the early days of the Very Large Array Wide-bandDigital Architecture (WIDAR) correlator commissioning. We conclude that thepreviously reported magnetic field strength of 58 mG ((1.7 Hz/mG)/z) isinstrumental in nature and thus incorrect. With the improved performance of thearray, we now deduce a 3 sigma limit of -4.7 to +0.4 mG ((1.7 Hz/mG)/z) for theline-of-sight component of the magnetic field strength in DR21W.

Very Large Array Detection of the 36 GHz Zeeman Effect in DR21W Revisited