Recent studies of methanol and ground-state OH masers at very high spectral resolution have shed new light on small-scale maser processes. The nearby source W3(OH), which contains numerous bright masers in several different transitions, provides an excellent laboratory for high spectral resolution techniques. We present a model of W3(OH) based on European VLBI Network (EVN) observations of the rotationally excited 6030 and 6035MHz OH masers taken at 0.024km/s spectral resolution.
Cone search capability for table J/ApJ/668/331/table1 (Detected 6030 and 6035MHz masers in W3(OH))
Cone search capability for table J/ApJ/668/331/table2 (Zeeman pairs and associations)