Detection of interstellar CH and CH(+) towards SN 1987a

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Abundance, Free Radicals, Interstellar Matter, Magellanic Clouds, Methyl Compounds, Supernova 1987A, Light Sources, Line Spectra, Near Ultraviolet Radiation, Signal To Noise Ratios

Scientific paper

The authors report the detection of interstellar CH and CH+
towards supernova 1987A. For both of these molecules, one component is
detected at a heliocentric velocity of about 280 km/s, corresponding to
material inside the LMC. Some implications of the authors' results with
regards to the H2-to-dust ratio are briefly discussed.

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