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A Neutral Gas Jet in a Low Velocity Shock Front at the Boundary of the Draco Nebula

Published online by Cambridge University Press:  12 April 2016

P.W.M. Kalberla ,
U. Herbstmeier  and
U. Mebold
P.W.M. Kalberla
Affiliation:
Radioastronomisches Institut der Universität Bonn, Auf dem Hügel 71, 5300 Bonn 1, Fed. Rep. Germany
U. Herbstmeier
Affiliation:
Radioastronomisches Institut der Universität Bonn, Auf dem Hügel 71, 5300 Bonn 1, Fed. Rep. Germany
U. Mebold
Affiliation:
Radioastronomisches Institut der Universität Bonn, Auf dem Hügel 71, 5300 Bonn 1, Fed. Rep. Germany

Abstract

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21-cm line observations with the Westerbork Synthesis Radio Telescope of a dust and molecular filament at the boundary of the Draco Nebula (l≈ 91°, b≈ 38°) reveal a jet-like neutral hydrogen feature funneling through an outlet in the low velocity shock front at the interface between the Draco Nebula and the surrounding gas. The jet-like feature is apparently connected with a high velocity filament at VLSR = -180 km s-1. We suggest that the soft x-ray emission observed in the area is thermal bremsstrahlung produced by the deceleration of high velocity gas in galactic gas.

Type
The LISM at Infrared and Millimeter Wavelengths
Information
International Astronomical Union Colloquium , Volume 81: Local Interstellar Medium , 1984 , pp. 243 - 247
Copyright
Copyright © NASA 1984

References

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