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AU-scale collimation of protostellar outflows from water masers
2007
Proceedings of 8th European VLBI Network Symposium — PoS(8thEVN)
unpublished
We conducted a study of water masers at 22.2 GHz around the Class 0 protostars called A and B in the NGC1333-IRAS 4 star forming region. Using the VLBA, we observed water emission at milliarcsecond scale and in phase referencing over four epochs spaced by one month to measure proper motions. The observations confirmed the high variability of H 2 O maser emission, shorter than one month. The high angular resolution allowed us to show that A2, the weakest source of the IRAS 4A binary system, is
doi:10.22323/1.036.0065
fatcat:brwmsq2jsnesnd7qabzrgsz444