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Pluto’s ‘desert’: Methane ice dunes on a glacier on an airless world

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18:00 – 20:00 12 Dec 2018
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A07 Seminar Room, Physics Department, Lancaster University, Lancaster, Lancashire, UK, LA1 4YB

Event Type: Lecture/Talk

Speaker: Dr Matt Telfer (Plymouth)

 

As well as the deserts of Earth, dunes have been identified on Venus, Mars and Saturn’s moon Titan. Tantalizingly dune-like features were described from the atmosphereless comet 67P Churyamov-Gerasimenko from the ESA’s Rosetta orbiter, but prior to New Horizon’s 2015 flyby of Pluto, so little was known of the geology of this world that predictions of its surface were extremely difficult. When images from Pluto revealed landforms startlingly similar to dunes from Earth’s deserts, the question of how it was possible to have dunes with an atmosphere only 1/100,000th that of Earth (~1 Pa) arises. Here we describe the spectral, spatial and image analysis, which, together with numerical modelling, solved this puzzle.

 

The talk starts at 18.30pm, with refeshments available fom 18.00pm.

 

please note the change of talk venue to A07 in the Physics Department, which is next to the Faraday Lecture Theatre Complex.  

 

Contact Details: Dr Chris Bowdery (Branch Secretary):

lancashireandcumbria@physics.org

Organised by: Institute of Physics Lancashire and Cumbria Branch

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Location icon
A07 Seminar Room, Physics Department, Lancaster University, Lancaster, Lancashire, UK, LA1 4YB
Clock icon
18:00 – 20:00 12 Dec 2018

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