A measurement of the infrared spectrum (7.5–13.2 micrometres) of the transiting extrasolar planet HD 209458b reveals that there is a broad emission peak centred near 9.65 micrometres, which they attribute to emission by silicate clouds, and a narrow, unidentified feature at 7.78 micrometres.
- L. Jeremy Richardson
- Drake Deming
- Joseph Harrington