|Prospects for Mapping Terrestrial Exoplanets with LUVOIR
Jacob Lustig-Yaeger (University of Washington, Seattle)
Unresolved astrophysical objects that rotate encode information about their two-dimensional heterogeneity into their observable lightcurves. In this talk, I will discuss how rotational inference techniques may be applied to study the rotation rates, surface maps, and habitability of terrestrial exoplanets using directly-imaged, time-series observations with LUVOIR. Compared to ground-based 30-meter class telescopes, the expected higher contrast and continuous pointing afforded by a space-based observatory makes LUVOIR ideal for studying Earth-like planets orbiting Sun-like stars. However, I will also discuss how the potential to extract information from time-series observations will ultimately depend of the telescope and instrument architecture that is selected. Finally, I will introduce a new observing strategy applicable to low-obliquity terrestrial planets on near edge-on orbits that leverages phase-dependent observations to study the angle-dependent scattering properties of an exoplanet surface. I will demonstrate how this technique may be used in the coming decades to detect oceans on exoplanets.
The talk will be given remotely and we will project slides in B34, E215 at Goddard.
The dial-in number is:
1844 467 6272
Adobe Connect: https://connect.arc.nasa.gov/luvoir/
|Date||October 25, 2017|
|Start/End Time||11:00 AM - 12:00 PM|
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