High-Spatial-Resolution Images of Eta Carinae

Details High-Spatial-Resolution Images of Eta Carinae High-Spatial-Resolution Images of Eta Carinae

Apr 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006atnf.prop..237w&link_type=abstract

ATNF proposal C186, Semester: April, 2006

Other

Stellar, Atca

Scientific paper

We request a single track to continue monitoring the microwave cycle of the famous southern star eta Carinae at wavelengths of 3 and 6 cm. This binary system has an orbital period of 5.5 years, and the radio emission is dramatically modulated on this timescale by a factor of at least 4 in flux. The radio emission is well resolved and comes predominantly from ionized gas in the inner few arcseconds of the system, although the larger nebula can also be seen. The radio cycle shows considerable hysteresis that reflects changes in the UV output or other physical properties of the stars. The most recent data suggests that in 2006 eta Car could reach an all-time maximum in flux at X band.

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