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VLA observations of water maser emission associated with SVS 13

  • Luis F. Rodríguez (a1), Guillem Anglada (a2), José M. Torrelles (a3), J. Eduardo Mendoza-Torres (a4), Aubrey D. Haschick (a5) and Paul T. P. Ho (a6)...

Abstract

The young stellar object SVS 13 has been proposed as the powering source of the HH 7-11 objects. Recent observations have revealed that in the radio continuum (3.6-cm) the source is a binary separated by about 0.3 in the east-west direction. We present Very Large Array observations, made in the highest angular resolution A configuration, of H2O maser emission toward this source. Our data show that the H2O spots appear to be segregated in two velocity groups: a group with radial velocity similar to that of the ambient cloud (V LSR ⋍ 8 km s−1) that is associated with the western radio source, and a blueshifted (by ∼20 km s−1) velocity group that is associated with the eastern radio source. We discuss the possible implications of this observation.

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References

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VLA observations of water maser emission associated with SVS 13

  • Luis F. Rodríguez (a1), Guillem Anglada (a2), José M. Torrelles (a3), J. Eduardo Mendoza-Torres (a4), Aubrey D. Haschick (a5) and Paul T. P. Ho (a6)...

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