Bipolar Outflow Offset from the Nucleus of M33
Abstract
Using long-slit spectra centered in wavelength about Hα , we have produced a velocity map of a 0.5' x 2' hourglass shaped object centered 38" southeast of the optical center of M33. The velocity resolution is 1.1 km/s. We have also produced electron temperature, electron density, and shock heating maps of the same region using the [NII](λ 6548), [NII](λ 6583), Hα , [SII](λ 6717), and [SII](λ 6731) lines. The data reveal that the gas is flowing away from the center of this hourglass shaped object and that the electron temperature and density of the region is relatively low. The shock heating maps indicate that very little of the gas in the region is shock heated. Using this new data and previously published UV, IR, and radio data we investigate possible scenarios that could explain this large scale, low velocity outflow.
- Publication:
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American Astronomical Society Meeting Abstracts
- Pub Date:
- December 2002
- Bibcode:
- 2002AAS...201.1315R