Probing Planetary Formation at the Angular Resolution Frontier

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• Mike Ireland (ANU)
• Wednesday 03 December 2014, 14:30-15:30
• Martin Ryle Seminar Room, Kavli Institute.

If you have a question about this talk, please contact Dr B.-O. Demory.

Note unusual time

Direct detection of the infrared radiation from exoplanets and their environment falls in an angular resolution niche: solar system scales for both typical Kepler targets and the nearest star forming regions falls right at the diffraction-limit of the world’s largest telescopes. I will outline techniques of kernel-phase and aperture-mask interferometry that are currently the world-leaders in infrared imaging at the diffraction-limit for typical Strehl ratios, and will show how they can be used to determine which environments are most suitable for planetary formation from terrestrial through to giant planet sizes. By following-up Kepler “object of interests” at high angular resolution, I will show that multiple star formation at solar-system scales strongly suppresses terrestrial planet formation, with the curious exception of stellar twins. At the youngest ages, I will show how radiation from planetary systems in the process of formation can be directly imaged, focusing on multi-epoch monitoring of the resolved emission seen within the disk gap of LkCa 15. Based on new data between 1.5 and 5 microns, I will present a model for the central source as thermal emission powered by the formation of one or several exoplanets.

This talk is part of the Exoplanet Seminars series.

This talk is included in these lists:

• Cambridge Astronomy Talks
• Combined External Astrophysics Talks DAMTP
• Cosmology, Astrophysics and General Relativity
• Exoplanet Seminars
• Institute of Astronomy Talk Lists
• LCLU Departmental Talks
• Martin Ryle Seminar Room, Kavli Institute

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