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Silicon Monoxide in Supernova SN1987A
Published online by Cambridge University Press: 07 August 2017
Abstract
The 8.1 μm Δv = 1 emission band of silicon monoxide detected in SN 1987A is modelled. Near day 500 the SiO mass is 4 ± 2 10−6M⊙ and the excitation temperature is ~1500 K. The mass of SiO is about 10 percent of the mass of dust inferred from the mid infrared emission near day 600, while the temperature is close to the condensation temperature of silicate grains. The SiO molecules may have been precursors to dust grain formation.
- Type
- Near Stellar Environments
- Information
- Symposium - International Astronomical Union , Volume 150: Astrochemistry of Cosmic Phenomena , 1992 , pp. 371 - 372
- Copyright
- Copyright © Kluwer 1992