High-sensitivity observations of HD 44179 - The Red Rectangle

Details High-sensitivity observations of HD 44179 - The Red Rectangle High-sensitivity observations of HD 44179 - The Red Rectangle

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pasp...95..489g&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 95, Aug. 1983, p. 489, 490.

Astronomy and Astrophysics

Astronomy

3

Binary Stars, Nebulae, Radio Astronomy, Radio Emission, Bipolarity, Infrared Astronomy, Nonthermal Radiation, Pressure Broadening

Scientific paper

The Red Rectangle (= HD 44179) was observed with the VLA at 1.465 and 4.885 GHz in search of nonthermal radio emission similar to that of SS433. To very sensitive limits, there is no radio emission from the Red Rectangle at these frequencies. If it were an SS433-like object, then its radio-emission intensity is less than 10 to the 6.5 power that of SS433, which contradicts the similarity in energetics seen in the 'Doppler' broadened optical line profile of the Red Rectangle. However, the lack of radio emission is consistent with the presence of a bipolar nebula, which would have a 'pressure' broadened profile.

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