Highlights of Science Results from the Odin Submillimetre Satellite

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

Odin is an international astronomy/aeronomy mission led by Sweden, with Canada, France, and Finland as partners. Canadian contributions include optical design, integration, and testing of the submillimetre receivers and spectrometers, development of software for command and telemetry extraction, scheduling, data analysis, as well as participation in the operation of the satellite. Since Odin was the second submillimetre telescope in space and the first to have tunable receivers, it allows many molecular transitions to be detected for the first time. Its wide spectral coverage also makes possible the observations of broad lines in stellar envelopes, galaxies, and planetary atmospheres. Highlights of science results include the first spectral scan of Orion KL in the 485-585 GHz range, the detection of isotopic lines of the ground-state transition of water, very low abundance limits for molecular oxygen, anomalously high abundance of water and ammonia in carbon star envelopes, and detection of water in comets and the atmospheres of Mars. Support of the Odin work in Canada was provided by the CSA and NSERC.

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