Habitable worlds with JWST : transit spectroscopy of the TRAPPIST-1 system?

Journal article

The recent discovery of three Earth-sized, potentially habitable planets around a nearby cool star, TRAPPIST-1, has provided three key targets for the upcoming James Webb Space Telescope (JWST). Depending on their atmospheric characteristics and precise orbit configurations, it is possible that any of the three planets may be in the liquid water habitable zone, meaning that they may be capable of supporting life. We find that present-day Earth levels of ozone, if present, would be detectable if JWST observes 60 transits for innermost planet 1b and 30 transits for 1c and 1d.

Authors: Barstow, J; Irwin, P

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: Oxford University Press
• Journal: Monthly Notices of the Royal Astronomical Society: Letters
• Volume: 461
• Issue: 1
• Pages: L92-L96
• Publication date: 2016-09-01
• Acceptance date: 2016-05-23
• DOI: 10.1093/mnrasl/slw109
• EISSN: 1745-3933
• ISSN: 1745-3925
• Keywords: radiative transfer; planets and satellites: atmospheres; methods: data analysis