High Velocity Bipolar Outflow from the Carbon Star V Hydrae Imaged with the SubMillimeter Array

Details High Velocity Bipolar Outflow from the Carbon Star V Hydrae Imaged with the SubMillimeter Array High Velocity Bipolar Outflow from the Carbon Star V Hydrae Imaged with the SubMillimeter Array

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..313..341h&link_type=abstract

Asymmetrical Planetary Nebulae III: Winds, Structure and the Thunderbird, Proceedings of the conference held 28 July - 1 August

Astronomy and Astrophysics

Astronomy

Scientific paper

Using the partially completed Submillimeter Array (SMA) with five antennas, we have observed the CO J=2-1 and 3-2 emission from the envelope surrounding the AGB carbon star V Hydrae. The high resolution (3-6'') maps show the spectacular features of the molecular envelope surrounding V Hydrae; there is a pair of bipolar molecular jets in the east-west direction with an extreme high velocity of 100-150 km s-1. The axis of these high velocity jets is perpendicular to the major axis of the flattened envelope having a size of ˜4000 AU. The present results suggest that the high-velocity, well-collimated jet that will be responsible for producing the bipolar nebula appears at the very beginning of post-AGB evolution.

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